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Journal articles on the topic 'Cuprous ion'

Author: Grafiati
Published: 9 September 2021
Last updated: 12 February 2022

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1

Omur-Ozbek, Pinar, and Andrea M. Dietrich. "Retronasal perception and flavour thresholds of iron and copper in drinking water." Journal of Water and Health 9, no. 1 (February 3, 2011): 1–9. http://dx.doi.org/10.2166/wh.2011.157b.

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Drinking water flavour has a strong role in water quality perception, service satisfaction, willingness to pay and selection of water sources. Metallic flavours are often caused by the dissolved iron and copper, commonly found in groundwater or introduced to tap water by corroding infrastructure. Taste thresholds of iron and copper have been investigated by several studies; however, reported results and test methods vary considerably. This study determined the taste thresholds of ferrous and cuprous ions in room temperature reagent water by using the one-of-five test with multi-nation panellists in the United States. For ferrous and cuprous ions, individual thresholds ranged from 0.003 to >5 mg l−1 and 0.035 to >5 mg l−1, respectively. Population thresholds were determined by logistic regression and geometric mean methods as 0.031 and 0.05 mg l−1 for ferrous ion, and 0.61 mg l−1 for cuprous ion by both methods. The components of metallic sensation were investigated by use of nose-clips while panellists ingested iron and copper solutions. Results showed that metallic sensation has a significant odour component and should be treated as a flavour instead of a taste. Ferrous, cuprous and cupric ions also produced weak bitter and salty tastes as well as astringent mouthfeel. In comparison, ferric ion produced no sensation.
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2

Xue, Juan Qin, Xiao Zhao, Yao Liu, Xue Ting Quan, and Cong Wang. "Disposal of Cuprous Chloride Waste Water with the Ion-Exchange." Applied Mechanics and Materials 295-298 (February 2013): 1825–28. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.1825.

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Based on the analysis of the structure property of the ions in the cuprous chloride wastewater, the study on the ion exchange of the cuprous chloride wastewater and the regeneration of resin had been experimentally investigated with 201×7OH— strong-alkali negative ion resin and 732Na strong-acidity positive ion resins. The influence on the disposal effect from the variation of pH and the addition of NaCl and Na2SO4 had been examined. The results showed that for the negative ion exchange reaction. If pH was adjusted with HCl, the concentration of copper in the waste water decreased slowly as pH decreases. If pH was adjusted with H2SO4, the concentration of copper in the waste water increased slowly as pH decreases. The addition of NaCl and Na2SO4 could enhance the exchange efficiency of negative ion. For the positive ion exchange reaction, the exchange efficiency of positive ion could be enhanced by the addition of HCl or H2SO4 which decreases pH; the addition of NaCl and Na2SO4 could enhance the exchange efficiency of positive ion, but was not significant.
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3

Schmidt, Ralf, and Josef Gaida. "Cuprous Ion Mass Transport Limitations During Copper Electrodeposition." ChemElectroChem 4, no. 8 (June 1, 2017): 1849–51. http://dx.doi.org/10.1002/celc.201700208.

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4

Hayashi, Taro, Shogo Matsuura, Kazuo Kondo, Kentaro Kataoka, Kohei Nishimura, Masayuki Yokoi, Takeyasu Saito, and Naoki Okamoto. "Role of Cuprous Ion in Copper Electrodeposition Acceleration." Journal of The Electrochemical Society 162, no. 6 (2015): D199—D203. http://dx.doi.org/10.1149/2.0471506jes.

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5

Kannar, S., and P. Mohazzabi. "An ion-scattering spectrometric study of cuprous sulphide." Journal of Materials Science Letters 4, no. 6 (June 1985): 720–24. http://dx.doi.org/10.1007/bf00726971.

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6

Zhang, Jiaxu, Xiang Wang, Jing Lv, Dong-Sheng Li, and Tao Wu. "A multivalent mixed-metal strategy for single-Cu+-ion-bridged cluster-based chalcogenide open frameworks for sensitive nonenzymatic detection of glucose." Chemical Communications 55, no. 45 (2019): 6357–60. http://dx.doi.org/10.1039/c9cc02905b.

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7

Jamnický, Miroslav, Jaroslav Sedláček, and Peter Znášik. "The Structure and Properties of Cuprous Ion Conducting Glasses." Solid State Phenomena 90-91 (April 2003): 221–26. http://dx.doi.org/10.4028/www.scientific.net/ssp.90-91.221.

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8

Kondo, K., H. Kouta, M. Yokoi, N. Okamoto, T. Saito, and T. Hayashi. "Cuprous Ion As An Accelerant of Copper Damascene Electrodeposition." ECS Transactions 58, no. 17 (February 27, 2014): 89–96. http://dx.doi.org/10.1149/05817.0089ecst.

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9

Graham, D. R., and K. W. Statham. "Some Observations on Dyeing by the Cuprous-ion Method." Journal of the Society of Dyers and Colourists 75, no. 9 (October 22, 2008): 452–55. http://dx.doi.org/10.1111/j.1478-4408.1959.tb02341.x.

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10

Ma, Jing, En Zhou, Cong Fan, Bo Wu, Chao Li, Zheng-Hong Lu, and Jingze Li. "Endowing CuTCNQ with a new role: a high-capacity cathode for K-ion batteries." Chemical Communications 54, no. 44 (2018): 5578–81. http://dx.doi.org/10.1039/c8cc00802g.

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CuTCNQ with a cuprous cation (Cu+) and an organic anion (TCNQ−) has been initially synthesized as an organic cathode for K-ion batteries, which can realize a three-electron redox mechanism and a maximum specific discharge capacity of 244 mA h g−1.
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11

Tang, Qiuling, Jian Zhou, Filipe A. Almeida Paz, Lianshe Fu, Hong Xiao, Qi Zhou, and Ju Li. "A novel 3-D photoluminescent cuprous chloride polymer based on bifunctional imidazolate/tetrazolate bridges." Dalton Transactions 46, no. 5 (2017): 1372–76. http://dx.doi.org/10.1039/c6dt04673h.

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The interconnection of rare [Cu2Cl]+cations and multidentate 1-tetrazole-4-imidazole-benzene bridging ligands gives a novel 3-D cuprous chloride polymer with a bimodalfsc-3,5-Cmce-2 topological type (L−ligand and Cu+ion: orange and blue).
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12

Liu, Song, Hongying Hou, Wen Hu, Xianxi Liu, Jixiang Duan, and Ruijin Meng. "Binder-free integration of insoluble cubic CuCl nanoparticles with a homologous Cu substrate for lithium ion batteries." RSC Advances 6, no. 5 (2016): 3742–47. http://dx.doi.org/10.1039/c5ra21020h.

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Binder-free integration of a novel insoluble cubic cuprous chloride (CuCl) nanoparticle anode material with homologous Cu foil was designed and achieved via facile in situ electrochemical self-assembly for the first time.
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13

Mokmeli, Mohammad, David Dreisinger, and Berend Wassink. "Thermodynamics and kinetics study of tellurium removal with cuprous ion." Hydrometallurgy 147-148 (August 2014): 20–29. http://dx.doi.org/10.1016/j.hydromet.2014.04.012.

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14

Sberna, P. M., I. Crupi, F. Moscatelli, V. Privitera, F. Simone, and M. Miritello. "Sputtered cuprous oxide thin films and nitrogen doping by ion implantation." Thin Solid Films 600 (February 2016): 71–75. http://dx.doi.org/10.1016/j.tsf.2016.01.005.

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15

Liang, Yu, Jian-Teng Wang, Li Song, Ding-Qiu Dai, You-Yu Wang, and Wen-Xiang Chai. "Structural, spectroscopic and DFT theoretical studies of phosphorescent CuIP2S-containing cuprous complexes." Acta Crystallographica Section C Structural Chemistry 77, no. 7 (June 7, 2021): 331–39. http://dx.doi.org/10.1107/s2053229621005696.

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Luminescent cuprous complexes are important coordination compounds due to their relative abundance, low cost and ability to display excellent luminescence. The structures of two CuIP2S-type cuprous complexes, namely, iodido(thiourea-κS)bis(triphenylphosphane-κP)copper(I), [CuI(CH4N2S)(C18H15P)2] or [CuI(TU)(TPP)2] (I), and (2,3-dihydrobenzimidazole-2-thione-κS)iodidobis(triphenylphosphane-κP)copper(I), [CuI(C7H6N2S)(C18H15P)2] or [CuI(DHBIT)(TPP)2] (II), are described. In these two structures, the complex molecules of both are constructed by one copper(I) centre, one iodide ion, two TPP ligands and one thione ligand (TU for I and DHBIT for II). The copper(I) centres of I and II are both located in a distorted CuIP2S tetrahedron and are coordinated by two P atoms from two TPP ligands, one S atom from the thione ligand and the I atom. The UV–Vis absorption and photoluminescence properties of these CuIP2S-type cuprous complexes have been studied using crystalline powder samples. Detailed time-dependent density functional theory (TD-DFT) calculations and wavefunction analysis reveal that the pale-blue–green phosphorescence emission should originate from intra-ligand (TPP for I and DHBIT for II) charge transfer, with a small component of the metal-to-ligand charge transfer 3(IL+ML)CT excited state.
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16

Debnath, Radhaballabh. "Copper-associated aluminum ionized center [AlO4−/Cu++]+ in a γ-irradiated copper (I)-containing silica glass." Journal of Materials Research 15, no. 3 (March 2000): 824–31. http://dx.doi.org/10.1557/jmr.2000.0117.

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A new type of aluminum ionized center associated with the copper ion [AlO4−/Cu++]+ has been observed in a copper(I)-containing silica glass upon γ-irradiation at room temperature. The center, unlike many other previously reported monovalent cation-compensated aluminum ionized hole centers [AlO4/M+]+, where M+ = H+, Li+, Na+, Ag+, etc., behaves more like a simple ionized center rather than an ionized hole center. We argue that complete compensation of the hole on the aluminum ion of the center becomes possible because of the compensating copper ion. This is accomplished by the donation of an electron by the cuprous ion to the neighboring irradiationgenerated [AlO4]0 hole via that oxygen atom of the (AlO4), which is nearest to the cation.
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17

Gurianov, Yanna, Faina Nakonechny, Yael Albo, and Marina Nisnevitch. "Antibacterial Composites of Cuprous Oxide Nanoparticles and Polyethylene." International Journal of Molecular Sciences 20, no. 2 (January 21, 2019): 439. http://dx.doi.org/10.3390/ijms20020439.

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Cuprous oxide nanoparticles (Cu2ONPs) were used for preparing composites with linear low-density polyethylene (LLDPE) by co-extrusion, thermal adhesion, and attachment using ethyl cyanoacrylate, trimethoxyvinylsilane, and epoxy resin. The composites were examined by Scanning electron microscope and tested for their antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. All of these composites—except for the one obtained by extrusion—eradicated cells of both bacteria within half an hour. The composite prepared by thermal adhesion of Cu2ONPs on LLDPE had the highest external exposure of nanoparticles and exhibited the highest activity against the bacteria. This composite and the one obtained using ethyl cyanoacrylate showed no leaching of copper ions into the aqueous phase. Copper ion leaching from composites prepared with trimethoxyvinylsilane and epoxy resin was very low. The antibacterial activity of the composites can be rated as follows: obtained by thermal adhesion > obtained using ethyl cyanoacrylate > obtained using trimethoxyvinylsilane > obtained using epoxy resin > obtained by extrusion. The composites with the highest activity are potential materials for tap water and wastewater disinfection.
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18

Natarajan, G. S., and K. A. Venkatachalam. "Thermodynamics of interaction of acetylene with cuprous ion in an aqueous medium." Journal of Applied Chemistry and Biotechnology 22, no. 9 (April 25, 2007): 1019–25. http://dx.doi.org/10.1002/jctb.5020220909.

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19

Machida, Nobuya, Mizuho Chusho, and Tsutomu Minami. "Preparation of cuprous ion-conducting glasses in the system CuICu2OMoO3." Journal of Non-Crystalline Solids 101, no. 1 (April 1988): 70–74. http://dx.doi.org/10.1016/0022-3093(88)90370-5.

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20

Vučina, J., D. Vuga, T. Maksin, and N. Vanlić-Razumenić. "Effect of cuprous ion on labeling of three skeletal imaging agents with99mTc." Journal of Radioanalytical and Nuclear Chemistry Letters 186, no. 4 (March 1994): 333–39. http://dx.doi.org/10.1007/bf02162617.

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21

Zhai, Ji Wei, Rong Jie Gao, Kui Guang Jiang, and Ming Zhi Sun. "Effects of Chlorine Ion on the Photocatalytic Activity of Cuprous Oxide Powders Prepared by Hydrothermal Method." Advanced Materials Research 79-82 (August 2009): 1875–78. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.1875.

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Cuprous oxide(Cu2O) microcrystals were successfully synthesized via hydrothermal method using CuSO4•5H2O and Na2SO3 in HAc-NaAc buffer solution. The products were characterized by X-rays diffraction (XRD) ,scan election microscopy (SEM) and ultraviolet-visible (UV-vis) spectroscopy. The photocatalytic activity of the as-prepared Cu2O powders was evaluated by the photocatalytic degradation of methyl orange solution under visible light irradiation at room temperature in air. The effects of chlorine ion on the photocatalytic activity of the Cu2O powders were investigated and discussed. The results show that chlorine ion in solution can obviously decrease the photocatalytic activity of Cu2O. When the concentration of chlorine ion increased to 0.5mol/L(about Cl- concentration in the seawater), the photocatalytic ratio of Cu2O decrease to 45% compared with the value in pure water. Increasing solution pH can enhance the photocatalytic activity of Cu2O. The mechanism of photo-degradation was discussed.
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22

Lv, Jian, Chuncai Kong, Xuanxuan Hu, Xiaojing Zhang, Ke Liu, Shengchun Yang, Jinglei Bi, et al. "Zinc ion mediated synthesis of cuprous oxide crystals for non-enzymatic glucose detection." Journal of Materials Chemistry B 5, no. 44 (2017): 8686–94. http://dx.doi.org/10.1039/c7tb01971h.

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23

Hayashi, Taro, Kazuo Kondo, Takeyasu Saito, Naoki Okamoto, Masayuki Yokoi, Minoru Takeuchi, Masaru Bunya, Masao Marunaka, and Takayuki Tsuchiya. "Correlation between Filled Via and Produced Cuprous Ion Concentration by Reverse Current Waveform." Journal of The Electrochemical Society 160, no. 6 (2013): D256—D259. http://dx.doi.org/10.1149/2.092306jes.

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24

MAETA, Ryousuke, and Satoru KATO. "Enrichment of Triglycerides with Polyunsaturated Fatty Acids Using Cuprous Ion Complex Formation Extraction." Solvent Extraction Research and Development, Japan 17 (2010): 243–48. http://dx.doi.org/10.15261/serdj.17.243.

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25

Gunther, M. R., P. M. Hanna, R. P. Mason, and M. S. Cohen. "Hydroxyl Radical Formation from Cuprous Ion and Hydrogen Peroxide: A Spin-Trapping Study." Archives of Biochemistry and Biophysics 316, no. 1 (January 1995): 515–22. http://dx.doi.org/10.1006/abbi.1995.1068.

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26

Nishimura, K., S. Matsuura, T. Hayashi, K. Kondo, M. Yokoi, T. Saito, and N. Okamoto. "Role of Cuprous Ion in Copper Electrodeposition Acceleration - a Rotating Ring Disk Study." ECS Transactions 64, no. 40 (April 30, 2015): 35–40. http://dx.doi.org/10.1149/06440.0035ecst.

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27

Viswanathan, A., and S. Austin Suthanthiraraj. "Frequency response analysis of the fast ion conducting system cuprous iodide — Silver chromate." Materials Research Bulletin 28, no. 8 (August 1993): 821–28. http://dx.doi.org/10.1016/0025-5408(93)90023-7.

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28

Zeng, Weifeng, Xiaodong Yang, Xiuli Chen, Yichen Yan, Xinwei Lu, Jinqing Qu, and Ruiyuan Liu. "Conjugated polymers containing 2-thiohydantoin: Detection of cuprous ion, hydrogen peroxide and glucose." European Polymer Journal 61 (December 2014): 309–15. http://dx.doi.org/10.1016/j.eurpolymj.2014.10.015.

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29

LI, WENHAO. "SYNTHESIS OF CUPROUS OXIDE THIN FILMS BY RF-MAGNETRON SPUTTERING." Surface Review and Letters 25, no. 02 (February 2018): 1850051. http://dx.doi.org/10.1142/s0218625x18500518.

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Cuprous oxide (Cu2O) thin films were produced from metallic Cu targets on [Formula: see text]-Al2O3 (000[Formula: see text]) substrate by radio frequency magnetron sputtering technology. Three batches of samples were deposited under various sputtering parameters by modulating substrate temperature, gas flow and sputtering power, respectively. The samples were characterized by X-ray diffraction and field-emission scanning electron microscopy. Through the experiment, the influences of the sputtering conditions were systematically investigated. It could be inferred that the crystallization extent and the crystal orientation in Cu2O thin films mainly depend on the temperature exchange, which contribute to the variation of the film morphology. Moreover, the gas flow has an effect on the valence of the copper ion in the film and the sputtering power mainly affects the growth rate of the films. This research promotes a more specific scheme to deposit proper Cu2O thin films with proper morphology and useful properties.
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30

O’Mullane, Anthony P., Aaron K. Neufeld, and Alan M. Bond. "Monitoring Cuprous Ion Transport by Scanning Electrochemical Microscopy during the Course of Copper Electrodeposition." Journal of The Electrochemical Society 155, no. 8 (2008): D538. http://dx.doi.org/10.1149/1.2936177.

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31

Machida, Nobuya, Yoshikane Shinkuma, Tsutomu Minami, Toshihiko Shigematsu, and Norihiko Nakanishi. "Cuprous Ion Conduction in Oxyhalide Glasses of the System CuBr ‐ Cu2MoO4 ‐ Cu3 PO 4." Journal of The Electrochemical Society 139, no. 5 (May 1, 1992): 1380–83. http://dx.doi.org/10.1149/1.2069416.

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32

MACHIDA, N., Y. SHINKUMA, T. MINAMI, T. SHIGEMATSU, and N. NAKANISHI. "ChemInform Abstract: Cuprous Ion Conduction in Oxyhalide Glasses of the System CuBr-Cu2MoO4- Cu3PO4." ChemInform 23, no. 29 (August 21, 2010): no. http://dx.doi.org/10.1002/chin.199229006.

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33

Chu, Chin-Ming, Ching Lee, Yung-Yun Wang, Chi-Chao Wan, and Chun-Jie Chen. "The role of cuprous ion as corrosion inhibitor for copper in a chloride medium." Journal of the Chinese Institute of Chemical Engineers 38, no. 5-6 (September 2007): 361–64. http://dx.doi.org/10.1016/j.jcice.2007.09.001.

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34

Du, Bui Duy, Dang Van Phu, Le Anh Quoc, and Nguyen Quoc Hien. "Synthesis and Investigation of Antimicrobial Activity of Cu2O Nanoparticles/Zeolite." Journal of Nanoparticles 2017 (January 9, 2017): 1–6. http://dx.doi.org/10.1155/2017/7056864.

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Cuprous oxide (Cu2O) nanoparticles in zeolite A were synthesized by two steps: (i) ion-exchange of copper ions into the zeolite and (ii) reduction of copper ions in cages of the zeolite by hydrazine hydrate in base medium. The Cu2O nanoparticles/zeolite product was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDX). The particle size of Cu2O nanoparticles was of 40 nm. The antibacterial activity of the as-synthesized Cu2O nanoparticles/zeolite against Escherichia coli was also investigated. Cu2O NPs/zeolite product can be favorably produced on large scale for water treatment and agricultural application as antimicrobial agent.
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35

MACHIDA, N., Y. MATSUDA, T. SHIGEMATSU, N. NAKANISHI, and T. MINAMI. "Preparation and cuprous ion conducting properties of the glasses in the system CuICu2WO4CuPO3." Solid State Ionics 73, no. 1-2 (October 1994): 63–66. http://dx.doi.org/10.1016/0167-2738(94)90264-x.

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36

Liu, Yu-Mei, Ziqi Tian, Feng Qu, Yan Zhou, Yong Liu, and Duan-Jian Tao. "Tuning Ion-Pair Interaction in Cuprous-Based Protic Ionic Liquids for Significantly Improved CO Capture." ACS Sustainable Chemistry & Engineering 7, no. 13 (June 3, 2019): 11894–900. http://dx.doi.org/10.1021/acssuschemeng.9b02540.

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37

Liu, Dequan, Zhibo Yang, Peng Wang, Fei Li, Desheng Wang, and Deyan He. "Preparation of 3D nanoporous copper-supported cuprous oxide for high-performance lithium ion battery anodes." Nanoscale 5, no. 5 (2013): 1917. http://dx.doi.org/10.1039/c2nr33383j.

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38

Lu, Li-Hui, Jia-Hao Wu, and Chia-Hsi Yang. "Preparation of 1H-1,2,3-Triazoles by Cuprous Ion Mediated Cycloaddition of Terminal Alkyne and Sodium Azide." Journal of the Chinese Chemical Society 55, no. 2 (April 2008): 414–17. http://dx.doi.org/10.1002/jccs.200800061.

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39

Bogdanova, Anna Y., Leila V. Virkki, Gennadii P. Gusev, and Mikko Nikinmaa. "Copper Effects on Ion Transport across Lamprey Erythrocyte Membrane: Cl−/OH− Exchange Induced by Cuprous Ions." Toxicology and Applied Pharmacology 159, no. 3 (September 1999): 204–13. http://dx.doi.org/10.1006/taap.1999.8736.

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40

Shen, Chao, Lidong Sun, Zhen Yu Koh, and Qing Wang. "Cuprous sulfide counter electrodes prepared by ion exchange for high-efficiency quantum dot-sensitized solar cells." Journal of Materials Chemistry A 2, no. 8 (2014): 2807. http://dx.doi.org/10.1039/c3ta14520d.

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41

Lamberti, A., M. Destro, S. Bianco, M. Quaglio, A. Chiodoni, C. F. Pirri, and C. Gerbaldi. "Facile fabrication of cuprous oxide nanocomposite anode films for flexible Li-ion batteries via thermal oxidation." Electrochimica Acta 70 (May 2012): 62–68. http://dx.doi.org/10.1016/j.electacta.2012.03.025.

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42

Lamberti, A., M. Destro, S. Bianco, M. Quaglio, A. Chiodoni, C. F. Pirri, and C. Gerbaldi. "Facile fabrication of cuprous oxide nanocomposite anode films for flexible Li-ion batteries via thermal oxidation." Electrochimica Acta 86 (December 2012): 323–29. http://dx.doi.org/10.1016/j.electacta.2012.11.036.

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43

Gao, Kangning, Jie Lu, Xi Wang, Dengxin Li, and Shihong Xu. "Effect of cations on the removal rate of chloride ions and mechanism analysis in high-salt wastewater." Water Science and Technology 83, no. 9 (March 17, 2021): 2232–41. http://dx.doi.org/10.2166/wst.2021.098.

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Abstract Precipitation dechlorination has the advantage of being a simple process with a low cost. However, there are few reports on the effect of cations on dechlorination. In this study, we investigated the effect of cations in high-salt wastewater on the removal of chlorine ions by cuprous chloride precipitation and analysed the corresponding mechanism. A series of investigations revealed that Fe3+ could oxidise sulphite, thereby reducing the removal rate of chlorine ions. The reaction between magnesium and sulphite results in precipitation, which has a slightly adverse effect on the removal of chloride ions. Hexavalent chromium oxidises the chloride ion, resulting in the formation of chlorine gas, which improves the removal rate. Ferrous and manganese, however, do not have a notable effect on chlorine removal.
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44

Akkaya, M., and J. R. Ambrose. "The Effect of Ammonium Chloride and Fluid Velocity on the Corrosion Behavior of Copper in Sodium Bicarbonate Solutions." Corrosion 41, no. 12 (December 1, 1985): 707–14. http://dx.doi.org/10.5006/1.3583007.

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Abstract The effect of ammonium chloride additions on the corrosion behavior of copper in 1 N sodium bicarbonate solutions has been characterized using a rotating ring-ring linear cyclic voltammetry technique. The experimentation and solution compositions used were selected to account for an unusually high incidence of pitting found to occur on interior surfaces of copper cold-water plumbing fixtures in the vicinity of neutral soldering flux residues. Although concentrations of ammonium chloride above 0.05 N were found to result in an increase of corrosion rate often attributed to the stabilization of a cuprous ion complex metal dissolution reaction product, under freely corroding conditions in an air-saturated solution, corrosion of copper metal would occur by an anodic process in which current was distributed between both soluble metal ions (cuprous and cupric ions) and insoluble corrosion product deposits. Although increases in applied potential or relative fluid velocity produced increases in the total corrosion rate, there was also a change in current distribution between the various components of the overall anodic process. Results from this study suggest that soluble and insoluble corrosion products (cathodically or anodically generated during a single linear polarization cycle) affect corrosion behavior during either successive cycles or extended exposure periods to such an extent that sole reliance on single-cycle anodic polarization behavior for the prediction of long-term corrosion resistance for copper and its alloys should be avoided.
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45

Cong, Ying Nan, Ying Liu, and Rui Sheng Hu. "Determination of the Presence of Composite Ions in Catalysts and Composite Ionic Liquids-Catalyzed Isobutane Alkylation." Advanced Materials Research 287-290 (July 2011): 1666–70. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.1666.

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A novel and efficient method was established to investigate isobutane/2-butene alkylation. In this method FT-IR spectroscopy was used to determine the presence of the composite ion (AlCuCl5-) in the composite ionic liquid (CIL). The trimethylpentane selectivity of the composite ionic liquid for isobutane/2-butene alkylation was also estimated by monitoring the shift of IR absorption bands in the range 1636–1685 cm-1. A detailed study of the alkylation of isobutane /2-butene in CIL media has been conducted using 1-alkyl-3-methylimidazolium halide/X aluminum chloride-y cuprous (I) chloride ([CnMIM]Cl/xAlCl3-yCuCl) encompassing various alkyl groups (n=4:B, butyl-, n=6:H, hexyl-, and n=8: O, octyl-)respectively. The ionic liquids showed higher selectivities of C8 as well as the TMP/DMH ratios in alkylates. The better catalytic performance of CIL can be attributed to the presence of the composite ion in it, and the catalytic performance of the chloroaluminate ionic liquid can be indicated by the 1685 cm-1band of FT-IR spectroscopy.
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46

Dai, Ming-Jiang, Song-Sheng Lin, Qian Shi, Fen Liu, Wan-Xia Wang, Sheng-Chi Chen, Tsung-Yen Kuo, and Hui Sun. "Transparent Conductive p-Type Cuprous Oxide Films in Vis-NIR Region Prepared by Ion-Beam Assisted DC Reactive Sputtering." Coatings 10, no. 5 (May 13, 2020): 473. http://dx.doi.org/10.3390/coatings10050473.

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Cu2O thin film has been widely studied due to its intrinsic p-type conductivity. It can be used as p-type transparent conductive electrode or hole transport layer in various potential applications. However, its intrinsic p-type conductivity is very limited, which needs to be optimized by introducing acceptor defects. In this work, the electrical properties of the Cu2O films was improved through introducing interstitial oxygen in the films those were deposited via direct current sputtering assisted by oxygen ion beam. The results show that with oxygen ion beam current increase, the carrier concentration effectively improves. However, with more interstitial oxygen introduced, the film’s crystallinity significantly reduces, as well as the carrier mobility decreases. Meanwhile, all of the Cu2O films present moderate transmittance in the visible region (400–800 nm), but ideal transmittance in the near infrared (NIR) light region (800–2500 nm). When compared with the strong reflection of the n-type transparent conductive film to the near infrared light, the Cu2O film is transparent conductive in NIR region, which expands its application in the fabrication of NIR electrical devices.
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47

TAKAHASHI, KATSUTOSHI, TOMOHISA TAKITA, and HAMAO UMEZAWA. "The nature of thiol-compounds which trap cuprous ion reductively liberated from bleomycin-Cu(II) in cells." Journal of Antibiotics 40, no. 3 (1987): 348–53. http://dx.doi.org/10.7164/antibiotics.40.348.

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48

Zhang, Mengmeng, Gang Cheng, Yi Wei, Zhipan Wen, Rong Chen, Jinyan Xiong, Weijie Li, Chao Han, and Zhen Li. "Cuprous ion (Cu+) doping induced surface/interface engineering for enhancing the CO2 photoreduction capability of W18O49 nanowires." Journal of Colloid and Interface Science 572 (July 2020): 306–17. http://dx.doi.org/10.1016/j.jcis.2020.03.090.

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49

Yang, Florent, Christopher Schröck, Jan Kugelstadt, Siyuan Zhang, Christina Scheu, Christina Trautmann, A. Wouter Maijenburg, and Maria Eugenia Toimil-Molares. "Cu2O/TiO2 Nanowire Assemblies as Photocathodes for Solar Hydrogen Evolution: Influence of Diameter, Length and NumberDensity of Wires." Zeitschrift für Physikalische Chemie 234, no. 6 (February 6, 2020): 1205–21. http://dx.doi.org/10.1515/zpch-2019-1529.

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AbstractThe performance of free-standing parallel-aligned nanowire arrays and interconnected networks of single-crystalline cuprous oxide (Cu2O) coated with titanium oxide (TiO2) as photocathodes for solar energy harvesting was analyzed. The nanostructures were synthesized by electrodeposition in polymer membranes prepared by ion-track technology. To enhance the photoelectrochemical stability of the nanowires in aqueous solution, they were conformally coated with a 10 nm thick TiO2 layer by atomic layer deposition. The diameter, size, geometry and number density of the parallel nanowires were systematically varied. The generated photocurrents show a clear increase as a function of wire diameter and wire number. In turn, the photocurrent does not get larger with increasing wire length. Highly interconnected networks of nanowires under 45° from various directions enabled further increase of wire density number and exhibited higher photocurrent densities compared to parallel arrays.
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50

Achard, Maud E. S., Jai J. Tree, James A. Holden, Kim R. Simpfendorfer, Odilia L. C. Wijburg, Richard A. Strugnell, Mark A. Schembri, Matthew J. Sweet, Michael P. Jennings, and Alastair G. McEwan. "The Multi-Copper-Ion Oxidase CueO of Salmonella enterica Serovar Typhimurium Is Required for Systemic Virulence." Infection and Immunity 78, no. 5 (March 15, 2010): 2312–19. http://dx.doi.org/10.1128/iai.01208-09.

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ABSTRACT Salmonella enterica serovar Typhimurium possesses a multi-copper-ion oxidase (multicopper oxidase), CueO (also known as CuiD), a periplasmic enzyme known to be required for resistance to copper ions. CueO from S. Typhimurium was expressed as a recombinant protein in Escherichia coli, and the purified protein exhibited a high cuprous oxidase activity. We have characterized an S. Typhimurium cueO mutant and confirmed that it is more sensitive to copper ions. Using a murine model of infection, it was observed that the cueO mutant was significantly attenuated, as indicated by reduced recovery of bacteria from liver and spleen, although there was no significant difference in recovery from Peyer's patches and mesenteric lymph nodes. However, the intracellular survival of the cueO mutant in unprimed or gamma-interferon-primed murine macrophages was not statistically different from that of wild-type Salmonella, suggesting that additional host factors are involved in clearance of the cueO mutant. Unlike a cueO mutant from E. coli, the S. Typhimurium cueO mutant did not show greater sensitivity to hydrogen peroxide and its sensitivity to copper ions was not affected by siderophores. Similarly, the S. Typhimurium cueO mutant was not rescued from copper ion toxicity by addition of the branched-chain amino acids and leucine.
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