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Journal articles on the topic 'CuO-Cu₂O'

Author: Grafiati

Published: 19 October 2024

Last updated: 31 July 2025

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1

Dubale, Amare Aregahegn, Chun-Jern Pan, Andebet Gedamu Tamirat, et al. "Heterostructured Cu2O/CuO decorated with nickel as a highly efficient photocathode for photoelectrochemical water reduction." Journal of Materials Chemistry A 3, no. 23 (2015): 12482–99. http://dx.doi.org/10.1039/c5ta01961c.

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2

Jiang, Qing, Jiajie Jiang, Runkang Deng, Xinyuan Xie, and Jianxin Meng. "Controllable preparation of CuO/Cu2O composite particles with enhanced photocatalytic performance." New Journal of Chemistry 44, no. 16 (2020): 6369–74. http://dx.doi.org/10.1039/d0nj00090f.

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3

Xu, Panpan, Jijun Liu, Tong Liu, et al. "Preparation of binder-free CuO/Cu2O/Cu composites: a novel electrode material for supercapacitor applications." RSC Advances 6, no. 34 (2016): 28270–78. http://dx.doi.org/10.1039/c6ra00004e.

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The results of XRD and XPS demonstrate that CuO/Cu<sub>2</sub>O/Cu is prepared successfully via a facile, eco-friendly, one-step template-free growth process. SEM figures show that cubic CuO/Cu<sub>2</sub>O/Cu uniformly and densely covers a skeleton of nickel foam.

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4

Wang, Peng, Xiaoming Wen, Rose Amal, and Yun Hau Ng. "Introducing a protective interlayer of TiO2 in Cu2O–CuO heterojunction thin film as a highly stable visible light photocathode." RSC Advances 5, no. 7 (2015): 5231–36. http://dx.doi.org/10.1039/c4ra13464h.

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Photoactivity and stability of Cu<sub>2</sub>O–CuO heterojunction thin films are enhanced by incorporating an interlayer of TiO<sub>2</sub>. The thin TiO<sub>2</sub> layer minimises the redox reactions at Cu<sub>2</sub>O–electrolyte interface and facilitates charge transfer from Cu<sub>2</sub>O to CuO.

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5

Fatoni, Ahmad, Mauizatul Hasanah, Lasmaryna Sirumapea, et al. "Synthesis, Characterization of Polyvinyl Alcohol-Chitosan-ZnO/CuO Nanoparticles Film and Its Biological Evaluation as An Antibacterial Agent of Staphylococcus aureus." al-Kimiya 10, no. 1 (2023): 1–12. http://dx.doi.org/10.15575/ak.v10i1.24725.

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The polyvinyl alcohol-chitosan-ZnO/CuO nanoparticles film was researched. Synthesis, characterization, and its biological evaluation as an antibacterial of Staphylococcus aureus were the aims of this research. The biosynthesis of ZnO, CuO, and ZnO/CuO nanoparticles was done using the biological method. The polyvinyl alcohol-chitosan-ZnO/CuO nanoparticles film was synthesized using the casting method. All the products were characterized by FTIR spectroscopy, X-ray diffraction, and Scanning Electron Microscope (SEM). Polyvinyl alcohol-chitosan-ZnO/CuO nanoparticles film as a paper disk for the e

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6

Liu, Baolin, Yizhao Li, Kun Wang, and Yali Cao. "The solid-state in situ construction of Cu2O/CuO heterostructures with adjustable phase compositions to promote CO oxidation activity." CrystEngComm 22, no. 45 (2020): 7808–15. http://dx.doi.org/10.1039/d0ce01324b.

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Cu<sub>2</sub>O/CuO heterojunctions were fabricated via in situ solid-state technology. Tuning the ratio of reactants enables optimization of the components of the Cu<sub>2</sub>O/CuO heterostructures and their catalytic activities for CO oxidation.

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7

OGUSHI, T., M. HIROSE, S. KOBA, S. HIGO, and I. KAWANO. "TRANSPORT PROPERTIES OF CuO IN YBCO/CuO/YBCO JUNCTION." Modern Physics Letters B 09, no. 17 (1995): 1059–67. http://dx.doi.org/10.1142/s0217984995001042.

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The zero resistance behavior of a CuO film sandwiched with YBa 2 Cu 3 O 7–δ films has been examined. The CuO is of tenorite C2/c structure which is a deformed NaCl-type lattice structure without being separated by an alkaline earth, and it forms a bulk in which copper is surrounded by nearly a square of Oxygen. The transition temperature Tce (R=0) in the fabricated sandwiched-type-CuO optimally increases over that of YBa 2 Cu 3 O 7–δ film-electrodes.

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8

Fatoni, Ahmad, Ade Chika Paramita, Budi Untari, and Nurlisa Hidayati. "Chitosan-CuO Nanoparticles as Antibacterial Shigella dysenteriae: Synthesis, Characterization, and In Vitro Study." Jurnal Kimia Sains dan Aplikasi 23, no. 12 (2021): 432–39. http://dx.doi.org/10.14710/jksa.23.12.432-439.

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The synthesis of chitosan- CuO nanoparticles was studied. This research’s aims were biosynthesis CuO nanoparticles, synthesis of chitosan-CuO nanoparticles, and used as an antibacterial agent of Shigella dysenteriae. CuO nanoparticles and chitosan-CuO nanoparticles were characterized by FTIR spectroscopy and X-ray diffraction, respectively. CuO nanoparticle was synthesized by the reaction between leaf extract of sweet star fruit (Averrhoa carambola L.) and copper sulfate pentahydrate. Chitosan-CuO nanoparticles were synthesized by a heating method. The suspension of chitosan-CuO nanoparticles

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9

Hamouda, Ragaa A., Mada A. Alharthi, Amenah S. Alotaibi, Asma Massad Alenzi, Doha A. Albalawi, and Rabab R. Makharita. "Biogenic Nanoparticles Silver and Copper and Their Composites Derived from Marine Alga Ulva lactuca: Insight into the Characterizations, Antibacterial Activity, and Anti-Biofilm Formation." Molecules 28, no. 17 (2023): 6324. http://dx.doi.org/10.3390/molecules28176324.

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Bacterial pathogens cause pain and death, add significantly to the expense of healthcare globally, and pose a serious concern in many aspects of daily life. Additionally, they raise significant issues in other industries, including pharmaceuticals, clothing, and food packaging. Due to their unique properties, a great deal of attention has been given to biogenic metal nanoparticles, nanocomposites, and their applications against pathogenic bacteria. This study is focused on biogenic silver and copper nanoparticles and their composites (UL/Ag2 O-NPS, Ul/CuO-NPs, and Ul/Ag/Cu-NCMs) produced by th

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10

Sano, Akihiro, Mikio Eto, and Hiroshi Kamimura. "I. First Principles Cluster Calculations for the Electronic Structures of CuO7 Octahedron and CuO5 Pyramid." International Journal of Modern Physics B 11, no. 32 (1997): 3733–50. http://dx.doi.org/10.1142/s021797929700191x.

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In this paper we first describe the multi-configuration self-consistent field method with configuration interaction (MCSCF-CI) which is a variational method most suitable for strongly-correlated cluster systems. Then the calculated results of CuO 6 cluster embedded in hole-doped La 2-x Sr x CuO 4 and of CuO 4 cluster in the electron-doped Nd 2-x Ce x CuO 4 are reviewed. Finally the calculated results on the electronic structure of CuO 5 pyramid embedded in the insulating YBa 2 Cu 3 O 6 and superconducting YBa2Cu3O7 are newly presented. In the latter case we will clarify an important role of th

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11

Göktaş, Sultan, and Gülsen Şahin. "Impact of different Cu sources on the structure, surface morphology, optical and photocatalytic characteristics of sol-gel derived CuO thin films." Türk Doğa ve Fen Dergisi 14, no. 1 (2025): 13–20. https://doi.org/10.46810/tdfd.1531667.

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In this study, the impact of different Cu sources has been scrutinized on the structure, surface morphology, optical, and photocatalytic properties of CuO thin films, synthesized by sol-gel dip coating have been investigated. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) mapping, and UV–Vis spectroscopy were utilized to scrutinize them. The XRD patterns showed that the CuO films had a monoclinic CuO phase with a polycrystalline nature and their crystalline quality depended on the used Cu-source. Comparatively, the highest crystalline quality

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12

Kar, Ashish Kumar, and Rajendra Srivastava. "Selective synthesis of Cu–Cu2O/C and CuO–Cu2O/C catalysts for Pd-free C–C, C–N coupling and oxidation reactions." Inorganic Chemistry Frontiers 6, no. 2 (2019): 576–89. http://dx.doi.org/10.1039/c8qi01198b.

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Cu-BTC MOF provides highly nanoporous Cu–Cu<sub>2</sub>O/C and CuO–Cu<sub>2</sub>O/C materials having active Cu phases with a high surface area and pore volume for efficient and sustainable catalysis.

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13

Sharma, Aditya, Mayora Varshney, Jaehun Park, Tae-Kyun Ha, Keun-Hwa Chae, and Hyun-Joon Shin. "XANES, EXAFS and photocatalytic investigations on copper oxide nanoparticles and nanocomposites." RSC Advances 5, no. 28 (2015): 21762–71. http://dx.doi.org/10.1039/c4ra16217j.

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CuO nanoparticles, Cu<sub>2</sub>O/CuO and CuO/TiO<sub>2</sub> nanocomposites exhibit excellent photocatalyst properties toward the degradation of methyl-orange and potassium-dichromate under the visible light irradiation.

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14

PRODI, A., A. GAUZZI, E. GILIOLI, et al. "CORRELATION BETWEEN LOCAL OXYGEN DISORDER AND ELECTRONIC PROPERTIES IN SUPERCONDUCTING RESR2CU3O6+X(RE = Y, YB)." International Journal of Modern Physics B 17, no. 04n06 (2003): 873–78. http://dx.doi.org/10.1142/s0217979203016753.

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This work aims at understanding the large reduction of superconducting critical temperature Tc observed in YSr 2 Cu 3 0 6+x as compared to its YBa 2 Cu 3 O 6+x counterpart (ΔTc = -30 K ). We report on a combined study of structural and electronic properties of RESr 2 Cu 3 O 6+x(RE = Y, Yb) polycrystalline samples. Neutron diffraction data and Cu NQR spectra show that, contrary to REBa 2 Cu 3 O 6+x RESr 2 Cu 3 O 6+x is locally tetragonal and no CuO chains are formed. This arises from the random occupancy of oxygen along the a- or b- direction in the basal planes. Ab-initio calculations of the e

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15

M.S. Manoj Kumar, M. S. Manoj Kumar, G. Sasireka G. Sasireka, C. Shivashankari vC. Shivashankari, A. Harinika A. Harinika, and P. Logeshwari P. Logeshwari. "Rapid accelerated La doped Cu of eather like nanocomposites for antibacterial activity and catalytic eliminations of Rhodamine-B dye using sodium borohydride- conventional approach." International Journal of Pharmaceutical Research and Applications 10, no. 2 (2025): 1845–53. https://doi.org/10.35629/4494-100218451853.

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Copper oxide (CuO) and lanthanum-doped CuO nanoparticles were synthesized and examined to study their structural, optical, morphological, antibacterial, and catalytic properties. This research evaluates the impact of lanthanum doping on these nanoparticles and highlights their enhanced performance. X-ray diffraction (XRD) confirmed a feather-like structure, while field emission scanning electron microscopy (FE-SEM) showed notable morphological changes due to La doping. Energy-dispersive X-ray (EDAX) analysis confirmed the chemical composition, and Fourier transform infrared (FTIR) spectroscopy

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16

Sasmal, Anup Kumar, Soumen Dutta, and Tarasankar Pal. "A ternary Cu2O–Cu–CuO nanocomposite: a catalyst with intriguing activity." Dalton Transactions 45, no. 7 (2016): 3139–50. http://dx.doi.org/10.1039/c5dt03859f.

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17

Duan, Rudi, Weibin Chen, Ziwei Chen, et al. "Mechanistic and Experimental Study of the CuxO@C Nanocomposite Derived from Cu3(BTC)2 for SO2 Removal." Catalysts 12, no. 7 (2022): 689. http://dx.doi.org/10.3390/catal12070689.

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A tunable and efficient strategy was adopted to synthesize highly porous nano-structured CuO−carbonized composites (CuxO@C) using Cu3(BTC)2 as a sacrificial template. The as-synthesized CuO nanocomposites exhibited hollow octahedral structures, a large surface area (89.837 m2 g−1) and a high proportion of Cu2O active sites distributed on a carbon frame. Based on DFT calculations, both the Cu atoms on the surface (CuS) and oxygen vacancy (OV) exhibited strong chemical reactivity. On the perfect CuO (111), the CuS transferred charge to O atoms on the surface and SO2 molecules. A strong adsorptio

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18

Juodkazytė, Jurga, Kȩstutis Juodkazis, Ieva Matulaitienė, et al. "Hydrogen Evolution on Nano-StructuredCuO/Pd Electrode: Raman Scattering Study." Applied Sciences 9, no. 24 (2019): 5301. http://dx.doi.org/10.3390/app9245301.

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In this study, the processes taking place on the surfaces of nanostructured Cu/CuO and Cu/CuO/Pd electrodes at different potential, E, values in the solutions of 0.1 M KOH in H 2 O and D 2 O (heavy water) were probed by surface enhanced Raman spectroscopy (SERS), and the analysis of electrochemical reactions occurring under experimental conditions is presented. The bands of the SERS spectra of the Cu/CuO/Pd electrode observed in the range of E values from +0.3 V to 0 V (standard hydrogen electrode (SHE)) at 1328–1569 cm − 1 are consistent with the existence of species that are adsorbed or weak

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19

HE, PING, XIAOLONG PENG, ZHONGZHI ZHANG, JIANG WU, NAICHAO CHEN, and JIANXING REN. "DENSITY FUNCTIONAL STUDY OF ELEMENTAL MERCURY ADSORPTION ON X (X=Mn, Si, Ti, Al, AND Zn)-DOPED CuO (110) SURFACE." Surface Review and Letters 24, no. 08 (2017): 1750119. http://dx.doi.org/10.1142/s0218625x17501190.

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Copper oxide (CuO) is proved to be a potential adsorbent for elemental mercury in the flue gas emitted from coal-fired power plant. However, the O-terminated CuO(110) surface has relatively week adsorption capacity for Hg. In this work, the doped method is applied to enhance the mercury adsorption capacity of O-terminated CuO(110). Mn, Si, Ti, Al and Zn are selected as the doped atom. It is found that only Zn-doped CuO (110) surfaces have the higher adsorption energy than the pure O-terminated CuO(110) surface. The mercury adsorption capacity is a complex issue, which depends on a combination

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20

OGUSHI, T., S. KOBA, M. HIROSE, S. HIGO, I. KAWANO, and A. NAKAO. "METAL-INSULATOR TRANSITION OF CuO IN YBCO/CuO/YBCO JUNCTION." Modern Physics Letters B 09, no. 17 (1995): 1069–74. http://dx.doi.org/10.1142/s0217984995001054.

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A resistive transition of CuO sandwiched with Y 1 Ba 2 Cu 3 O 7–δ films has been studied. It shows a zero resistive transition around the critical temperature of Y 1 Ba 2 Cu 3 O 7–δ. The metal-insulator (or high resistivity) transition has been observed for thicker samples depending on the measuring current.

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21

DOW, JOHN D., HOWARD A. BLACKSTEAD, and DALE R. HARSHMAN. "THE CASE AGAINST CUPRATE-PLANE SUPERCONDUCTIVITY." International Journal of Modern Physics B 14, no. 29n31 (2000): 3444–50. http://dx.doi.org/10.1142/s0217979200003939.

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Significant elements in the case for high-temperature superconductivity originating in the charge-reservoir layers are presented, including: (i) the successful predictions that PrBa 2 Cu 3 O 7, Gd 1.6 Ce 0.4 Sr 2 Cu 2 TiO 10, Pr 1.5 Ce 0.5 Sr 2 Cu 2 NbO 10, and Eu 1.5 Ce 0.5 Sr 2 Cu 2 TiO 10 all superconduct; (ii) the fact that muons stopped in the SrO layers of Sr 2 YRu 1-u Cu u O 6 detected flux expulsion, (iii) the observed superconductivity of PrBa 2 Cu 3 O 7 when its c-axis lattice constant is longer than 11.77 Å, and (iv) the failure of Gd 2-z Ce z CuO 4, Cm 2-z Th z CuO 4, and Ba 2 GdRu

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22

Dai, Yanhui, Jian Zhao, Xiaoyun Liu, et al. "Transformation and species identification of CuO nanoparticles in plant cells (Nicotiana tabacum)." Environmental Science: Nano 6, no. 9 (2019): 2724–35. http://dx.doi.org/10.1039/c9en00781d.

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23

Chang, Chun-Chih, Elise Y. Li, and Ming-Kang Tsai. "A computational exploration of CO2 reduction via CO dimerization on mixed-valence copper oxide surface." Physical Chemistry Chemical Physics 20, no. 25 (2018): 16906–9. http://dx.doi.org/10.1039/c8cp00592c.

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24

Guo, Mu Yao, Fangzhou Liu, Jenkin Tsui, et al. "Hydrothermally synthesized CuxO as a catalyst for CO oxidation." Journal of Materials Chemistry A 3, no. 7 (2015): 3627–32. http://dx.doi.org/10.1039/c4ta06804a.

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25

Fadlly, Teuku Andi, and Rachmad Almi Putra. "CURRENT-VOLTAGE CHARACTERISTICS OF SOLAR CELLS p-n JUNCTION ZnO AND TiO2 PARAREL ON Cu2O LAYER." Jurnal Neutrino 12, no. 1 (2020): 1. http://dx.doi.org/10.18860/neu.v12i1.7578.

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Current-Voltage Characteristics of solar cells p-n junction ZnO and TiO<sub>2</sub> parallel in the Cu<sub>2</sub>O layer has been determined using solar irradiation. Metal oxide has been used as a semiconductor material, such as ZnO and TiO<sub>2</sub> is an n-type semiconductor. The material has a gap energy of 3.37 eV and 3.2 eV. Thermal oxidation is applied to commercial Cu plates for 60 minutes to produce Cu<sub>2</sub>O layers as p-type semiconductors. The process varies in temperature, namely 300, 400, and 500 °C. The process of thermal ox

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26

Muthukumar, Pandi, Mehboobali Pannipara, Abdullah G. Al-Sehemi, and Savarimuthu Philip Anthony. "Highly enhanced bifunctional electrocatalytic activity of mixed copper–copper oxides on nickel foam via composition control." New Journal of Chemistry 44, no. 28 (2020): 11993–2001. http://dx.doi.org/10.1039/d0nj02311f.

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27

WEN, SHULIN. "MECHANISM OF SOLID STATE REACTION FROM 2212 TO 2223 IN BSCCO STUDIED BY HREM." Modern Physics Letters B 05, no. 08 (1991): 597–606. http://dx.doi.org/10.1142/s0217984991000721.

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Two mechanisms of solid state reaction from 2212 to 2223 in Bi-Sr-Ca-Cu-O have been investigated and are elucidated in this paper. The first mechanism is related to nucleation of 2223 phase in a liquid matrix with the composition of Bi 2 SrCaCu 2 O +Ca 2 CuO 3+ CuO and subsequent growth. The second mechanism is related to intragrain reaction in which only two layers of atoms (a Ca layer and a CuO layer) are required to move into the 2212 structure forming the 2223 structure. To study the mechanisms of such a solid state reaction may be very important for the preparation of pure 2223 phase in B

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28

TATARCHENKO, V. A., G. A. EMEL'CHENKO, N. V. ABROSIMOV, et al. "SINGLE CRYSTAL GROWTH OF HIGH TEMPERATURE SUPERCONDUCTORS AND INVESTIGATION OF THEIR PHYSICAL PROPERTIES." International Journal of Modern Physics B 03, no. 02 (1989): 289–302. http://dx.doi.org/10.1142/s0217979289000221.

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Part of the phase diagram of the La 2 O 3- CuO system has been studied and single crystals of La 2 CuO 4, (LaSr) 2 CuO 4 (up to 20 × 8 × 6 mm 3), YBa 2 Cu 3 O 7−δ (up to 8 × 6 × 0.1 mm 3) and HoBa 2 Cu 3 O 7-(up to 3 × 2.5 × 1 mm 3) have been grown by the method of spontaneous crystallisation, using a rotational crucible. It has been established that thermal treatment of "123" single crystals under oxygen pressure to 10 bars improves their superconducting properties. Electrical, magnetic, optical properties, and the real structure of the single crystals produced have been studied.

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29

Gao, J., W. H. Tang, and T. C. Chui. "A NOVEL BUFFER LAYER FOR GROWING ULTRATHIN FILMS OF YBa2Cu3Oy ON YSZ SUBSTRATES." International Journal of Modern Physics B 13, no. 29n31 (1999): 3660–62. http://dx.doi.org/10.1142/s0217979299003623.

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A new buffer material Nd 2 CuO 4 has been used to improve the initial epitaxy of YBa 2 Cu 3 O y, on yttrium stabilized ZrO 2. By using Nd 2 CuO 4 as a buffer layer, the epitaxy and crystallinity of the grown YBa 2 Cu 3 O y, have been significantly enhanced. High quality superconducting thin and ultrathin films with a thickness down to two unit cells have been obtained.

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30

NISHIZAKI, TERUKAZU, NORIO KOBAYASHI, and MAKOTO MAKI. "STM STUDIES OF ELECTRONIC ORDER IN THE UNDERDOPED SURFACE OF YBa2Cu3Oy." International Journal of Modern Physics B 21, no. 18n19 (2007): 3199–201. http://dx.doi.org/10.1142/s0217979207044184.

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To study the nanoscale electronic order in high-T c superconductors, we have performed low-temperature scanning tunneling microscopy (STM) experiments on YBa 2 Cu 3 O y, single crystals. The electronic state of the underdoped CuO 2 plane is studied through the BaO surface taking advantage of the cleaved surface, which has an insufficient carrier doping into the topmost CuO 2 plane because of the incomplete carrier reservoir. The STM image measured at low bias-voltage below 20 mV shows the one-dimensional (1D) electronic modulation along the Cu - O bonds. The 1D modulation do not have long-rang

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31

Chen, Chunjun, Xiaofu Sun, Xupeng Yan, et al. "A strategy to control the grain boundary density and Cu+/Cu0 ratio of Cu-based catalysts for efficient electroreduction of CO2 to C2 products." Green Chemistry 22, no. 5 (2020): 1572–76. http://dx.doi.org/10.1039/d0gc00247j.

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Cu(OH)<sub>2</sub>/CuO nanocomposite-derived Cu<sub>2</sub>O/Cu achieves a total faradaic efficiency for C2 products of 65% via tuning the grain boundary density and Cu<sup>+</sup>/Cu<sup>0</sup> ratio.

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32

Vinod Kumar, V., A. Dharani, Mariappan Mariappan, and Savarimuthu Philip Anthony. "Synthesis of CuO and Cu2O nano/microparticles from a single precursor: effect of temperature on CuO/Cu2O formation and morphology dependent nitroarene reduction." RSC Advances 6, no. 88 (2016): 85083–90. http://dx.doi.org/10.1039/c6ra16553b.

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CuO and Cu<sub>2</sub>O micro/nanoparticles have been synthesized from same precursor in hydrothermal method by controlling temperature and morphology dependent nitroarenes reduction was studied with CuO nano/microparticles.

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33

TOPAL CANBAZ, Gamze. "Green Synthesis of CuO Nanoparticles Using Tragopogon porrifolius and Their Antioxidant and Photocatalytic Applications." Cumhuriyet Science Journal 44, no. 4 (2023): 671–77. http://dx.doi.org/10.17776/csj.1329389.

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Copper oxide nanoparticles (CuO NPs) were produced by green synthesis method which is a cheap, easy and effective method using Tragopogon porrifolius extract. The shape, bond and crystal structure of the nanoparticles were determined by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and X-ray diffractometer (XRD) analysis methods. SEM analysis showed that the particles were spherical and EDX analysis showed the elemental composition of Cu and O as Cu 58.17 % and O 32.73 %. Cu-O bond structure was identified in FTIR analysis. In

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34

Zou, Xinwei, Huiqing Fan, Yuming Tian, Mingang Zhang, and Xiaoyan Yan. "Chemical bath deposition of Cu2O quantum dots onto ZnO nanorod arrays for application in photovoltaic devices." RSC Advances 5, no. 30 (2015): 23401–9. http://dx.doi.org/10.1039/c4ra13776k.

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A protective CuO layer on the Cu<sub>2</sub>O quantum dots was prepared by simply heat-treating the Cu<sub>2</sub>O/ZnO hetero-nanorod arrays in ambient air, which enhances the photovoltaic stability.

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35

Zhai, Yanzhao, Yongjun Ji, Guangna Wang, et al. "Controllable wet synthesis of multicomponent copper-based catalysts for Rochow reaction." RSC Advances 5, no. 89 (2015): 73011–19. http://dx.doi.org/10.1039/c5ra10999j.

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36

Ye, Lin, and Zhenhai Wen. "Self-supported three-dimensional Cu/Cu2O–CuO/rGO nanowire array electrodes for an efficient hydrogen evolution reaction." Chemical Communications 54, no. 49 (2018): 6388–91. http://dx.doi.org/10.1039/c8cc02510j.

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37

Billinge, Simon J. L., Matthias Gutmann, and Emil S. Božin. "Structural Response to Local Charge Order in Underdoped but Superconducting La2-x(Sr,Ba)xCuO4." International Journal of Modern Physics B 17, no. 18n20 (2003): 3640–47. http://dx.doi.org/10.1142/s021797920302154x.

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Results are presented of a local structural study of the nearest neighbor Cu–O distance distribution in underdoped but superconducting La 1.875 Sr 0.125 CuO 4, La 1.85 Ba 0.15 CuO 4 and La 1.85 Sr 0.15 CuO 4. Atomic pair distribution function analysis of neutron powder diffraction data has been carried out to obtain local structural information over a wide temperature range. We observe an anomalous increase in the Cu–O bond length distribution at low temperature that may be associated with the presence of an inhomogeneous charge distribution. The increase at low temperature has an onset temper

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38

Chen, Kunfeng, and Dongfeng Xue. "Cu-based materials as high-performance electrodes toward electrochemical energy storage." Functional Materials Letters 07, no. 01 (2014): 1430001. http://dx.doi.org/10.1142/s1793604714300011.

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Cu -based materials, including metal Cu and semiconductors of Cu 2 O and CuO , are promising and important candidates toward practical electrochemical energy storage devices due to their abundant, low cost, easy synthesis and environmentally friendly merits. This review presents an overview of the applications of Cu -based materials in the state-of-art electrochemical energy storage, including both lithium-ion batteries and supercapacitors. The synthesis chemistry, structures and the corresponding electrochemical performances of these materials are summarized and compared. During chemical synt

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39

Wang, Minjun, Shixiong Zhang, Ming Xia, and Mengke Wang. "A Theoretical Study of the Oxygen Release Mechanisms of a Cu-Based Oxygen Carrier during Chemical Looping with Oxygen Uncoupling." Catalysts 12, no. 3 (2022): 332. http://dx.doi.org/10.3390/catal12030332.

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The Cu-based oxygen carrier is a promising material in the chemical looping with oxygen uncoupling (CLOU) process, while its performance in the CLOU is significantly dependent on the oxygen release properties. However, the study of oxygen release mechanisms in CLOU is not comprehensive enough. In this work, the detailed oxygen release mechanisms of CuO(110) and CuO(111) are researched at an atomic level using the density functional theory (DFT) method, including the formation of O2, the desorption of O2 and the diffusion of O anion, as well as the analysis of the density of states. The results

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40

LUCACEL, R. CICEO, and I. ARDELEAN. "EPR AND MAGNETIC SUSCEPTIBILITY STUDIES OF COPPER IONS IN THE 2B2O3·Ag2O GLASS MATRIX." International Journal of Modern Physics B 18, no. 20n21 (2004): 2915–21. http://dx.doi.org/10.1142/s0217979204026159.

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Glasses of the x CuO ·(100-x)[2 B 2 O 3· Ag 2 O ] system, with 0<x≤30 mol %, were investigated by means of EPR and magnetic susceptibility measurements. The influence of a gradual increase in CuO content on the glass structure and magnetic interactions that involved copper ions, have been discussed. EPR absorption spectra show Cu 2+ ions in axially distorted octahedral environments. Both EPR and magnetic measurements data pointed out the simultaneous presence in the glasses with x>5 mol % of Cu 2+ and Cu + ionic species. The Curie behavior of magnetic susceptibility indicates the absence

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41

Sasvári, J., S. Pekker, A. Csordás Tóth, Gy Hutiray, and L. Mihály. "SUPERCONDUCTING AND MINOR PHASES IN Bi-Sr-Ca-Cu-O SYSTEM." International Journal of Modern Physics B 02, no. 05 (1988): 1241–48. http://dx.doi.org/10.1142/s0217979288001098.

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Ceramics of various nominal composition in the Bi-Sr-Ca-Cu-O system were studied by X-ray powder diffraction and electron beam microanalysis. Electrical resistivity measurements were also carried out. Efforts were made to prepare various phase compositions in the Bi-Sr-Ca-Cu-O system, such as the Bi 2 Sr 2 Ca 2 Cu 3 O 10 (from now on we use the commonly accepted composition denotion by cation stoichiometry, here 2223), 2212 and 2201, with T c = 110 K , 70 K and 20 K, respectively. Experiments included higher calcium ratio samples such as the 4334 and related compositions. All studied samples c

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42

Yang, Siyuan, Shengsen Zhang, Hongjuan Wang, Hao Yu, Yueping Fang, and Feng Peng. "Facile synthesis of self-assembled mesoporous CuO nanospheres and hollow Cu2O microspheres with excellent adsorption performance." RSC Adv. 4, no. 81 (2014): 43024–28. http://dx.doi.org/10.1039/c4ra07593e.

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Zhao, Han, Hongcheng Li, Yongwan Gu, et al. "La2O2CO3-Induced phase composition oscillation in La–Cu mixed oxides during repeated catalytic soot combustion." Catalysis Science & Technology 9, no. 18 (2019): 5100–5110. http://dx.doi.org/10.1039/c9cy01061k.

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La<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>-Induced phase composition oscillation between phase 1 (CuO + La<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>) and phase 2 (La<sub>2</sub>CuO<sub>4</sub>) in La–Cu mixed oxides during repeated catalytic soot combustion.

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NOWIK, ISRAEL, and ISRAEL FELNER. "COMPETITION BETWEEN SUPERCONDUCTIVITY AND ANTIFERROMAGNETISM." Modern Physics Letters B 05, no. 04 (1991): 273–75. http://dx.doi.org/10.1142/s0217984991000319.

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The competition between superconductivity and Cu antiferromagnetism in the high Tc, Cu containing superconductors, ( R 1−x M x)2 CuO 4, RBa 2 Cu 3 O 7, Bi 2 Sr 2 CaCu 2 O 8 and YBa 2 Cu 4O8 is reviewed. Partial substitution of some of the ions suppresses superconductivity and leads to the establishment of antiferromagnetic order in the Cu layers.

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Hu, Pu, Maxim Dorogov, Yan Xin, and Katerina E. Aifantis. "Transforming Single‐Crystal CuO/Cu 2 O Nanorods into Nano‐Polycrystalline Cu/Cu 2 O through Lithiation." ChemElectroChem 6, no. 12 (2019): 3139–44. http://dx.doi.org/10.1002/celc.201900564.

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CALLEGARI, AGNESE, ENRICO PERFETTO, GIANLUCA STEFANUCCI, and MICHELE CINI. "INTERPLANAR HOPPING OF W = 0 BOUND PAIRS." International Journal of Modern Physics B 17, no. 04n06 (2003): 567–72. http://dx.doi.org/10.1142/s0217979203016248.

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CuO 4 is the simplest of a class of repulsive Hubbard model clusters which (under well specified conditions) display W = 0 pairing; remarkably, ane also observes superconducting quantization of a magnetic flux orthogonal to the plane. Thus one can use CuO 4 units connected by weak O-O and/or Cu-Cu links to model interplanar coupling and c-axis superconductivity in Cuprates. A new analytic approximation supported by preliminary numerical evidence suggests that in such models one can study the propagation of bound pairs and also the superconducting flux quantization in a 3d geometry.

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Wang, Yiting, Yinyun Lü, Wenwen Zhan, Zhaoxiong Xie, Qin Kuang, and Lansun Zheng. "Synthesis of porous Cu2O/CuO cages using Cu-based metal–organic frameworks as templates and their gas-sensing properties." Journal of Materials Chemistry A 3, no. 24 (2015): 12796–803. http://dx.doi.org/10.1039/c5ta01108f.

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Porous Cu<sub>2</sub>O/CuO polyhedral cages with excellent gas-sensing properties were successfully fabricated by thermal decomposition of Cu-based metal–organic frameworks composed of polyhedral crystals.

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Wang, Liying, Kalyani Gupta, Josephine B. M. Goodall, Jawwad A. Darr, and Katherine B. Holt. "In situ spectroscopic monitoring of CO2 reduction at copper oxide electrode." Faraday Discussions 197 (2017): 517–32. http://dx.doi.org/10.1039/c6fd00183a.

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Copper oxide modified electrodes were investigated as a function of applied electrode potential using in situ infrared spectroscopy and ex situ Raman and X-ray photoelectron spectroscopy. In deoxygenated KHCO<sub>3</sub> electrolyte bicarbonate and carbonate species were found to adsorb to the electrode during reduction and the CuO was reduced to Cu(i) or Cu(0) species. Carbonate was incorporated into the structure and the CuO starting material was not regenerated on cycling to positive potentials. In contrast, in CO<sub>2</sub> saturated KHCO<sub>3</sub> solution, surface adsorption of bicarb

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Jia, He, Haitao Gao, Shilin Mei, et al. "Cu2O@PNIPAM core–shell microgels as novel inkjet materials for the preparation of CuO hollow porous nanocubes gas sensing layers." Journal of Materials Chemistry C 6, no. 27 (2018): 7249–56. http://dx.doi.org/10.1039/c8tc01995a.

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CuO porous hollow sensing layers can be easily formed by heating Cu<sub>2</sub>O@PNIPAM printed layers, which show faster response to relevant trace NO<sub>2</sub> gases than sensors produced from bare Cu<sub>2</sub>O nanocubes.

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Na, Yulyi, Sung Woo Lee, Nitish Roy, Debabrata Pradhan, and Youngku Sohn. "Room temperature light-induced recrystallization of Cu2O cubes to CuO nanostructures in water." CrystEngComm 16, no. 36 (2014): 8546–54. http://dx.doi.org/10.1039/c4ce01174k.

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Visible light irradiation induces recrystallization of Cu<sub>2</sub>O cubes to [010] growth-directed CuO nanoribbons in water due to the creation of active ˙OH and ˙O<sub>2</sub><sup>−</sup> species and outward Cu diffusion along unstable {010} facets.

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