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Journal articles on the topic 'Pt-free'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Heo, Pilwon, Hidetaka Shibata, Masahiro Nagao, and Takashi Hibino. "Pt-free intermediate-temperature fuel cells." Solid State Ionics 179, no. 27-32 (2008): 1446–49. http://dx.doi.org/10.1016/j.ssi.2007.12.090.

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2

CLACENS, J. "Pt-free sulphur resistant NOx traps." Applied Catalysis B: Environmental 53, no. 1 (2004): 21–27. http://dx.doi.org/10.1016/j.apcatb.2004.04.014.

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3

Umedu, Keita, Iori Shimada, Mitsumasa Osada, Nobuhide Takahashi, and Hiroshi Fukunaga. "Influence of Operating Conditions on the Mass Activity Characteristics and Performance of Carbon-Free Pt Black Electrodes for PEFC." ECS Meeting Abstracts MA2024-02, no. 44 (2024): 3016. https://doi.org/10.1149/ma2024-02443016mtgabs.

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In recent years, the development of polymer electrolyte fuel cells (PEFCs) has been progressing. To expand their application to heavy-duty vehicles (HDVs), enhancing the power density and heat dissipation efficiency of PEFCs through high-temperature operation has become essential. Therefore, there is a need for high durability to enable the high-temperature operation of electrodes. In this context, we focused on carbon-free ionomer-free electrodes utilizing unsupported catalysts such as Pt black and low-Pt yet highly durable platinum nanosheets (Pt-ns). These electrodes offer high durability b

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4

Fukunaga, Hiroshi, Takaaki Sasaki, Ahmad Zulfikri Taning, and Sakae Takenaka. "Performance and Durability of Carbon-Free Ionomer-Free PEFC Cathode Using Pt Nanosheet Catalyst." ECS Meeting Abstracts MA2023-02, no. 37 (2023): 1744. http://dx.doi.org/10.1149/ma2023-02371744mtgabs.

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Polymer electrolyte fuel cells (PEFCs) have been attracting attention as highly efficient power sources and have been commercialized for use in residential power plants and automobiles. However, further widespread adoption requires the development of low-platinum catalysts. Additionally, for installation in heavy duty vehicles such as large trucks, high durability at high temperatures is necessary. Pt nanosheets (Pt(ns)), consisting of several atomic layers of Pt with a flat structure, possess high mass activity and durability due to the high specific surface area and low surface energy [1]. C

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5

Nie, Yao, Li Li, and Zidong Wei. "Recent advancements in Pt and Pt-free catalysts for oxygen reduction reaction." Chemical Society Reviews 44, no. 8 (2015): 2168–201. http://dx.doi.org/10.1039/c4cs00484a.

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6

Raharjanti, Amalia. "Mean-Variance Investment Without Risk-Free Assets in PT Company Shares PT Ace Hardware (Aces.Jk), PT Mayora Indah (Myor.Jk), PT Bri (Bbri.Jk), PT Siloam Hospital (Silo.Jk), PT Eterindo Wahanatama (Etwa.Jk)." Operations Research: International Conference Series 4, no. 3 (2023): 105–8. http://dx.doi.org/10.47194/orics.v4i3.251.

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Portfolio is a form of strategy that investors often apply in risky investment conditions. The essence of portfolio construction is to allocate funds to various investment options to minimize investment risk. Therefore, the aim of this discussion is to construct an investment portfolio of several shares using an average variable portfolio optimization model without risk-free assets. To obtain an optimal portfolio, a mean-variance investment optimization model without risk-free assets or what is called the Basic Markowitz model is used. This involves investors measuring the risk of an asset usi

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7

Thompson, Eric L., and Daniel Baker. "Proton Conduction on Ionomer-Free Pt Surfaces." ECS Transactions 41, no. 1 (2019): 709–20. http://dx.doi.org/10.1149/1.3635605.

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8

Favaron, O., and J. L. Fouquet. "On m-centers in Pt-free graphs." Discrete Mathematics 125, no. 1-3 (1994): 147–52. http://dx.doi.org/10.1016/0012-365x(94)90155-4.

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9

Meng, Hui, and Pei Kang Shen. "Novel Pt-free catalyst for oxygen electroreduction." Electrochemistry Communications 8, no. 4 (2006): 588–94. http://dx.doi.org/10.1016/j.elecom.2006.01.020.

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10

Dominici, C., F. Petrucci, S. Caroli, A. Alimonti, A. Clerico, and M. A. Castello. "A pharmacokinetic study of high-dose continuous infusion cisplatin in children with solid tumors." Journal of Clinical Oncology 7, no. 1 (1989): 100–107. http://dx.doi.org/10.1200/jco.1989.7.1.100.

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The pharmacokinetics of cisplatin were investigated in 14 patients, aged 10 months through 13 years who were affected by solid malignant tumors. High-dose cisplatin (40 mg/m2/d) was administered with repeated courses for five days as a continuous intravenous (IV) infusion. Total platinum (Pt) levels in plasma and urine and free (protein-unbound) Pt levels in plasma ultrafiltrate were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Areas under the concentration v time curve (AUCs) for mean total and free Pt levels were calculated for the 120-hour period of infus

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11

Almarjan, Lulu, Deni Muhammad Danial, and Dicky Jhoansyah. "Pengaruh Free Cash Flow terhadap Kebijakan Hutang." BUDGETING : Journal of Business, Management and Accounting 1, no. 2 (2020): 163–69. http://dx.doi.org/10.31539/budgeting.v1i2.807.

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This study aims to determine how much influence the free cash flow on debt policy at PT Indofood Sukses Makmur Tbk. The method used in this research is descriptive and associative methods with quantitative approaches. The data used is PT Indofood's annual financial statement data for 8 years from 2011 to 2018. The statistical test used is calculation, analysis using simple linear regression including the coefficient of determination test. The results showed that the free cash flow variable gained a significance value of 0.008, which means that there was an influence of free cash flow on the co

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12

Deng, Yibo, Xiaoguang Xu, Zedong Xu, et al. "Self-rectifying and forming-free resistive switching behaviors in Pt/La2Ti2O7/Pt structure." Ceramics International 48, no. 4 (2022): 4693–98. http://dx.doi.org/10.1016/j.ceramint.2021.11.005.

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13

Okazaki-Maeda, K., Y. Morikawa, Shingo Tanaka, and Masanori Kohyama. "Effects of Supports on Hydrogen Adsorption on Pt Clusters." Solid State Phenomena 139 (April 2008): 41–46. http://dx.doi.org/10.4028/www.scientific.net/ssp.139.41.

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Pt nano-particles are supported on carbon materials at the electrode catalysts of protonexchange menbrane fuel cells. Pt nano-particles are desirable to be strongly adsorbed on carbon materials for high dispersion, although strong Pt-C interactions may affect the catalytic activity of small clusters. Thus we have examined H-atom absorption on Pt clusters supported or unsupported on graphene sheets, using first-principles calculations. For Pt-atom/graphene systems, a H atom is more weakly adsorbed than for a free Pt atom, and the H-Pt interaction becomes weaker if the interaction between a Pt a

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14

Cruz-Martínez, Heriberto, Wilbert Guerra-Cabrera, Ernesto Flores-Rojas, et al. "Pt-Free Metal Nanocatalysts for the Oxygen Reduction Reaction Combining Experiment and Theory: An Overview." Molecules 26, no. 21 (2021): 6689. http://dx.doi.org/10.3390/molecules26216689.

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The design and manufacture of highly efficient nanocatalysts for the oxygen reduction reaction (ORR) is key to achieve the massive use of proton exchange membrane fuel cells. Up to date, Pt nanocatalysts are widely used for the ORR, but they have various disadvantages such as high cost, limited activity and partial stability. Therefore, different strategies have been implemented to eliminate or reduce the use of Pt in the nanocatalysts for the ORR. Among these, Pt-free metal nanocatalysts have received considerable relevance due to their good catalytic activity and slightly lower cost with res

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15

Ye, Heng, Guofeng Ma, Jian Kang, Hongqi Sun, and Shaobin Wang. "Pt-Free microengines at extremely low peroxide levels." Chemical Communications 54, no. 37 (2018): 4653–56. http://dx.doi.org/10.1039/c8cc01548a.

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16

Qi, Gongshin, and Wei Li. "Pt-free, LaMnO3 based lean NOx trap catalysts." Catalysis Today 184, no. 1 (2012): 72–77. http://dx.doi.org/10.1016/j.cattod.2011.11.012.

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17

Groenland, Carla, Karolina Okrasa, Paweł Rzążewski, Alex Scott, Paul Seymour, and Sophie Spirkl. "H-colouring Pt-free graphs in subexponential time." Discrete Applied Mathematics 267 (August 2019): 184–89. http://dx.doi.org/10.1016/j.dam.2019.04.010.

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18

Shen, Yu, Minqing Wang, Hui Xia, et al. "Pseudobinary Phase Diagrams of Eutectic Reaction for Pt‐containing and Pt‐free 718Plus Alloys." Advanced Engineering Materials 23, no. 5 (2021): 2001233. http://dx.doi.org/10.1002/adem.202001233.

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19

Wang, Wenqing, Hongbin Zhao, Baolin Zhang, and Hailing Tu. "Forming-Free Pt/Ti/AlOx/CeOx/Pt Multilayer Memristors with Multistate and Synaptic Characteristics." Journal of Nanomaterials 2022 (October 5, 2022): 1–9. http://dx.doi.org/10.1155/2022/1370919.

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Due to their unique electrical performance and simple structure, memristors exhibit excellent application prospects for future information technology. In this work, we fabricated Pt/Ti/AlOx/CeOx/Pt memristors demonstrating electroforming-free bipolar resistive switching behavior with low operating voltage (−1 to 1 V), stable endurance, and retention. Space-charge limited conduction (SCLC) as well as the formation and rupture of conductive filaments are responsible for the resistive switching behavior. Increasing the magnitude of the RESET voltage could generate multistate resistive switching.

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20

Kurnia, F., Chunli Liu, C. U. Jung, and B. W. Lee. "The evolution of conducting filaments in forming-free resistive switching Pt/TaOx/Pt structures." Applied Physics Letters 102, no. 15 (2013): 152902. http://dx.doi.org/10.1063/1.4802263.

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21

Nie, Yao, Li Li, and Zidong Wei. "ChemInform Abstract: Recent Advancements in Pt and Pt-Free Catalysts for Oxygen Reduction Reaction." ChemInform 46, no. 25 (2015): no. http://dx.doi.org/10.1002/chin.201525299.

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22

Massaglia, Giulia, Isabella Fiorello, Adriano Sacco, Valentina Margaria, Candido Pirri, and Marzia Quaglio. "Biohybrid Cathode in Single Chamber Microbial Fuel Cell." Nanomaterials 9, no. 1 (2018): 36. http://dx.doi.org/10.3390/nano9010036.

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The aim of this work is to investigate the properties of biofilms, spontaneously grown on cathode electrodes of single-chamber microbial fuel cells, when used as catalysts for oxygen reduction reaction (ORR). To this purpose, a comparison between two sets of different carbon-based cathode electrodes is carried out. The first one (Pt-based biocathode) is based on the proliferation of the biofilm onto a Pt/C layer, leading thus to the creation of a biohybrid catalyst. The second set of electrodes (Pt-free biocathode) is based on a bare carbon-based material, on which biofilm grows and acts as th

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23

Ishimoto, Takayoshi, and Michihisa Koyama. "Theoretical Study on Solubility from Pt Electrocatalyst and Reactivity in Electrolyte Environment of Pt Complex in PEFC." International Journal of Electrochemistry 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/318461.

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We theoretically analyzed the formation energy and solvation free energy of Pt(II) and Pt(IV) complexes with three types of ligands(H2O,OH−,and CF3SO3 −)in electrolyte environment under the low- and high-humidity conditions to study the Pt electrocatalyst degradation and dissolution mechanisms for polymer electrolyte fuel cell. To represent the low- and high-humidity conditions in perfluorosulfonic acid (PFSA) polymer electrolyte membrane, we controlled the dielectric constant based on the experimental result. We observed general tendencies that the formation energy becomes larger while the so

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24

Sun, Lian, Qian Zhang, Qijie Liang та ін. "α-Fe2O3/Reduced Graphene Oxide Composites as Cost-Effective Counter Electrode for Dye-Sensitized Solar Cells". Catalysts 12, № 6 (2022): 645. http://dx.doi.org/10.3390/catal12060645.

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The counter electrode (CE) is an important and vital part of dye-sensitized solar cells (DSSCs). Pt CEs show high-performance in DSSCs using iodide-based electrolytes. However, the high cost of Pt CEs restricts their large-scale application in DSSCs and the development of Pt-free CE is expected. Here, α-Fe2O3/reduced graphene oxide (α-Fe2O3/RGO) composites are prepared as the Pt-free CE materials for DSSCs. A simple hydrothermal technique was used to disseminate the α-Fe2O3 solid nanoparticles uniformly throughout the RGO surface. The presence of the α-Fe2O3 nanoparticles increases the specifi

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25

Lee, Tae Kyu, Hyang Jin Park, Min Ki Kwon, Ju Hae Jung, Junbom Kim, and Seung Hyun Hur. "Polyol-Free Synthesis of Uniformly Dispersed Pt/Graphene Oxide Electrocatalyst by Sulfuric Acid Treatment." Journal of Nanomaterials 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/418737.

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Polyol-free synthesis of highly loaded Pt catalysts on sulfuric-acid-treated graphene oxide (SGO) was reported. Sulfuric acid treatment increased the surface hydroxyl groups on graphene oxide (GO), which contributed to the reduction of Pt precursors in the absence of external reducing agent. By adjusting pH during the Pt reduction, we can get uniformly dispersed 2.5 nm size Pt nanoparticles on GO surface even at 50 wt% Pt loading amount. Cyclic voltammetry showed that increased pH resulted in increased electrochemical surface area.

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26

Ren, Xue, Liang Liu, Bin Cheng, et al. "Field-free switching of magnetization induced by spin–orbit torque in Pt/CoGd/Pt thin film." Applied Physics Letters 120, no. 25 (2022): 252403. http://dx.doi.org/10.1063/5.0092513.

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All-electric control of magnetism is essential for the future ultralow-power memory and logic spintronic applications. Here, we report a highly efficient way to realize field-free current-induced switching of magnetization in ferrimagnetic CoGd, which is deposited with composite target. The critical switching current density is as low as ∼1 × 107 A/cm2. Without any gradient designs, our CoGd film intrinsically exhibits extraordinary titled magnetic anisotropy and bias-fields. The field-free switching of magnetizations can be achieved by applying current pulses in x or y directions. We further

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27

Men Truong, Van, Julian Richard Tolchard, Jørgen Svendby, et al. "Platinum and Platinum Group Metal-Free Catalysts for Anion Exchange Membrane Fuel Cells." Energies 13, no. 3 (2020): 582. http://dx.doi.org/10.3390/en13030582.

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The development of active hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) catalysts for use in anion exchange membrane fuel cells (AEMFCs), which are free from platinum group metals (PGMs), is expected to bring this technology one step closer to commercial applications. This paper reports our recent progress developing HOR Pt-free and PGM-free catalysts (Pd/CeO2 and NiCo/C, respectively), and ORR PGM-free Co3O4 for AEMFCs. The catalysts were prepared by different synthesis techniques and characterized by both physical-chemical and electrochemical methods. A hydrothermally

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28

Nabae, Y., M. Chokai, T. Ichihara, T. Hayakawa, and T. Aoki. "Pt-Free Cathode Catalyst Prepared From Polyimide Fine Particles." ECS Transactions 58, no. 1 (2013): 1501–7. http://dx.doi.org/10.1149/05801.1501ecst.

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29

Wang, Yibo, Tengfei Li, Mingming Li, et al. "Pt-decorated fluorine-free Ti3C2TX for hydrogen evolution reaction." Journal of Materials Science: Materials in Electronics 31, no. 14 (2020): 11345–51. http://dx.doi.org/10.1007/s10854-020-03683-2.

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30

Moskovkin, P., and M. Hou. "Metropolis Monte Carlo predictions of free Co–Pt nanoclusters." Journal of Alloys and Compounds 434-435 (May 2007): 550–54. http://dx.doi.org/10.1016/j.jallcom.2006.08.178.

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31

Huang, Shenwei. "Improved complexity results on k-coloring Pt-free graphs." European Journal of Combinatorics 51 (January 2016): 336–46. http://dx.doi.org/10.1016/j.ejc.2015.06.005.

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32

Chowdury, Md Shahjahan Kabir, Young Jin Cho, Sung Bum Park, Min Hwan Lee, and Yong-il Park. "Pt-free graphene oxide-hydrogen membrane fuel cells (GOHMFCs)." Materials Today Chemistry 34 (December 2023): 101770. http://dx.doi.org/10.1016/j.mtchem.2023.101770.

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33

Dhobi, Saddam Husain, Suresh Prasad Gupta, Jeevan Jyoti Nakarmi, et al. "Scattering of Free Electrons with Hydrogen Atoms in Proton Exchange Membrane Fuel Cell System." International Annals of Science 13, no. 1 (2023): 22–28. http://dx.doi.org/10.21467/ias.13.1.22-28.

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The objective of this work is to study the Klein-Nishina (KN) cross section during the collision of free electrons and atoms (H-atom and Pt-atom) near the cathode of Proton Exchange Membrane Fuel Cell (PEMFCs). The developed KN cross section was computed using MATLAB shows KN cross section decrease with an increase with the temperature. The maximum KN cross section recorded for single scattering is about -70.2m2 and -66m2 in natural log terms during the collision of free electrons with H-atom and Pt-atom, respectively. The maximum KN cross section recorded for 1ml flow of hydrogen is about -26

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34

Charde, Rashmi P., Brian van Devener, and Michael M. Nigra. "Surfactant- and Ligand-Free Synthesis of Platinum Nanoparticles in Aqueous Solution for Catalytic Applications." Catalysts 13, no. 2 (2023): 246. http://dx.doi.org/10.3390/catal13020246.

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The synthesis of surfactant-free and organic ligand-free metallic nanoparticles in solution remains challenging due to the nanoparticles’ tendency to aggregate. Surfactant- and ligand-free nanoparticles are particularly desirable in catalytic applications as surfactants, and ligands can block access to the nanoparticles’ surfaces. In this contribution, platinum nanoparticles are synthesized in aqueous solution without surfactants or bound organic ligands. Pt is reduced by sodium borohydride, and the borohydride has a dual role of reducing agent and weakly interacting stabilizer. The 5.3 nm Pt

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35

Fiorellino, Francesca, Martina Pilloni, Andrea Ardu, et al. "(FeCo/Ppy@C): Pt-Free FeCo-Polypyrrole Nanocomposites Supported On Porous Carbon For Electrochemical Application." Advanced Materials Letters 10, no. 4 (2019): 253–58. http://dx.doi.org/10.5185/amlett.2018.2203.

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36

Santos Andrade, Tatiana, and Torbjörn Thiringer. "Performance of Pt-Free Catalysts in a Fuel Cell Vehicle." ECS Meeting Abstracts MA2024-02, no. 46 (2024): 3268. https://doi.org/10.1149/ma2024-02463268mtgabs.

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Fuel cell vehicles have been pointed out as a promising green transportation alternative in the current energy transition scenario. However, the use of Pt-based catalysts adds relevant costs to the proton exchange membrane (PEM) fuel cell technologies that limit the spread commercialization of those vehicles. Therefore, Pt-free catalysts have been strongly investigated for PEM fuel cell stacks. However, those catalysts usually face a performance-durability trade-off that is a challenge to overcome. In recent years, significant improvements have been reported for those catalysts. Thus, catalyst

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37

Fukuda, Takeshi, Kenji Iimura, Takanori Yamamoto, et al. "Ozone-Assisted Hydrothermal Synthesis Method of Sb-Doped SnO2 Conductive Nanoparticles for Carbon-Free Oxygen-Reduction-Reaction Catalysts of Proton-Exchange-Membrane Hydrogen Fuel Cells." Crystals 14, no. 5 (2024): 462. http://dx.doi.org/10.3390/cryst14050462.

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Proton-exchange-membrane hydrogen fuel cells (PEMFCs) are an important energy device for achieving a sustainable hydrogen society. Carbon-based catalysts used in PEMFCs’ cathode can degrade significantly during operation-voltage shifts due to the carbon deterioration. The longer lifetime of the system is necessary for the further wide commercialization of PEMFCs. Therefore, carbon-free catalysts are required for PEMFCs. In this study, highly crystallized conducting Sb-doped SnO2 (Sb-SnO2) nanoparticles (smaller than 7 nm in size) were synthesized using an ozone-assisted hydrothermal synthesis.

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38

Yi, Beili, Haojie Zhao, Yue Zhang, et al. "A direct solvent-free conversion approach to prepare mixed-metal metal–organic frameworks from doped metal oxides." Chemical Communications 57, no. 29 (2021): 3587–90. http://dx.doi.org/10.1039/d1cc00671a.

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39

Lu, Lijuan, Yao Nie, Yao Wang, et al. "Preparation of highly dispersed carbon supported AuPt nanoparticles via a capping agent-free route for efficient methanol oxidation." Journal of Materials Chemistry A 6, no. 1 (2018): 104–9. http://dx.doi.org/10.1039/c7ta08343b.

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Bimetallic AuPt catalysts were synthesized via a facile capping agent-free route. Compared to the catalysts with too much Pt on the surface, the surface Pt-rich catalysts with a few exposed Au atoms exhibit the enhanced methanol oxidation reaction activity due to the stronger synergistic effect between Pt and Au.

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40

Tran, Ben, Sara Moore, George Zogopoulos, et al. "Platinum-based chemotherapy (Pt-chemo) in pancreatic adenocarcinoma (PC) associated with BRCA mutations: A translational case series." Journal of Clinical Oncology 30, no. 4_suppl (2012): 217. http://dx.doi.org/10.1200/jco.2012.30.4_suppl.217.

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217 Background: Prognosis of PC is poor and responses to chemotherapy are minimal and short lived. In prior randomized studies, cisplatin and gemcitabine provided no additional benefits over gemcitabine alone. Preclinical data and case reports suggest BRCA cancers have increased sensitivity to Pt-chemo. Our case series characterizes the benefits of Pt-chemo in germline BRCA mutated PC. Methods: Patients with PC and deleterious germline BRCA mutations treated with Pt-chemo were identified using the Ontario Pancreatic Cancer Study and pharmacy databases. Review of clinical records provided demog

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41

Posti, Raghvendra, Abhishek Kumar, Dhananjay Tiwari, and Debangsu Roy. "Emergence of considerable thermoelectric effect due to the addition of an underlayer in Pt/Co/Pt stack and its application in detecting field free magnetization switching." Applied Physics Letters 121, no. 22 (2022): 223502. http://dx.doi.org/10.1063/5.0125607.

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Application of sufficient lateral current to a heavy metal (HM) can switch the perpendicular magnetization orientation of an adjacent ferromagnetic layer through spin–orbit torques (SOTs). The choice of the HM and its arrangement plays a major role for the SOT induced magnetization switching in magnetic heterostructures. Generally, thin Ta is used as an underlayer to the HM layer for better adhesion and smoothness of the HM layer. Here, we show that Ta addition to the asymmetric stack Pt/Co/Pt gives rise to several compelling effects, viz., thermoelectric effects [particularly, anomalous Nerns

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42

Uršič, Hana, Janez Holc, Marina Santo Zarnik, Marko Hrovat, and Marija Kosec. "Large Strain Actuation of 0.65PMN–0.35PT/Pt Thick-Film Bimorphs." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2012, CICMT (2012): 000597–602. http://dx.doi.org/10.4071/cicmt-2012-tha23.

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The effect of clamping a piezoelectric layer to a relatively stiff substrate results in smaller displacements in comparison to substrate-free structures. To ensure a sufficient amount of the bending of actuators, it is important to reduce the thickness of the substrate. For this reason an approach to preparing “substrate-free”, large-displacement actuators using the screen-printing method was developed. The “substrate-free” 0.65PMN–0.35PT/Pt actuators were prepared by screen-printing the 0.65PMN–0.35PT and Pt pastes on alumina substrates. After the screen printing and the subsequent firing the

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43

Kohlheyer, Dietrich, Jan C. T. Eijkel, Stefan Schlautmann, Albert van den Berg, and Richard B. M. Schasfoort. "Bubble-Free Operation of a Microfluidic Free-Flow Electrophoresis Chip with Integrated Pt Electrodes." Analytical Chemistry 80, no. 11 (2008): 4111–18. http://dx.doi.org/10.1021/ac800275c.

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44

Chen, Shasha, Puyu Qi, Jin Chen, and Youzhu Yuan. "Platinum nanoparticles supported on N-doped carbon nanotubes for the selective oxidation of glycerol to glyceric acid in a base-free aqueous solution." RSC Advances 5, no. 40 (2015): 31566–74. http://dx.doi.org/10.1039/c5ra02112j.

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45

Gercovich, N., S. Carnaval, F. Negro, et al. "Ovarian adenocarcinoma in teenagers and young adults: A clinical challenge." Journal of Clinical Oncology 25, no. 18_suppl (2007): 16070. http://dx.doi.org/10.1200/jco.2007.25.18_suppl.16070.

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16070 Background: Ovarian cancer (OC) appears at an average age of 63, and is uncommon in younger patients (pt), with only about 5% being diagnosed below 30 years of age. The aim of this study is to analyze the onset and prognosis of ovarian adenocarcinoma (OA) in teenagers and young adults treated at the IOHM. Methods: From Oct 87 through Nov 06, 467 pt were diagnosed with OC. Twenty six pt (5,35%) were young adults or teenagers. Ten out of the 26 pt had OA, while the other histological types were as follows: 7 pt Germ cell tumors- 5 pt Borderline - 2 pt stromal tumors - 1 pt neuroendocrine -

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46

Fan, Hui Qing, Jin Chen, and Xiu Li Chen. "Preparation and Characterization of Relaxor-Based Ferroelectric Thick Films with Single Perovskite Structure." Key Engineering Materials 368-372 (February 2008): 24–26. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.24.

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Lead magnesium niobate-lead titanate (0.8Pb(Mg1/3Nb2/3)O3-0.2PbTiO3, PMN-PT) thick films in the thickness range about 75 μm have been successfully fabricated on Au-coated Al2O3 substrates by electrophoretic deposition (EPD). Non-aqueous colloidal suspensions suitable for EPD were prepared by mixing ultrasonically PMN-PT particles in ethanol with pH=6.0. The effect of EPD process parameters such as deposition voltage, deposition time and the specific deposition mass of PMN-PT particles were investigated. The EPD parameters were optimized in order to obtain crack-free, high-quality uniform ceram

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Chen, Kai-Huang, Chien-Min Cheng, Ying-Jie Chen, and Mei-Li Chen. "Lead-Free Piezoelectric Ceramic Micro-Pressure Thick Films." Crystals 13, no. 2 (2023): 201. http://dx.doi.org/10.3390/cryst13020201.

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In this study, non-stoichiometry lead-free piezoelectric ceramic Li0.058(K0.48Na0.535)0.966(Nb0.9Ta0.1)O3 (LKNNT) thick films were deposited on Pt/Ti/Si substrates using spin-coating method technology to form a LKNNT/Pt/Ti/Si structure of the micro-pressure thick films. Additionally, the influence on the crystalline properties, surface microstructure images, and mechanical properties, and the piezoelectric properties of the non-stoichiometry lead-free piezoelectric ceramic Li0.058(K0.48Na0.535)0.966(Nb0.9Ta0.1)O3 (LKNNT) thick films were observed, analyzed, and calculated using X-ray diffracti

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Bermudez, V. M., and R. Kaplan. "Investigation of the structure and stability of the Pt/SiC(001) interface." Journal of Materials Research 5, no. 12 (1990): 2882–93. http://dx.doi.org/10.1557/jmr.1990.2882.

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Auger electron spectroscopy and low energy electron diffraction have been applied to the study of the structure and thermal stability of the Pt/β–SiC(001) interface. The morphology of the interface appears to be governed by the competition among surface diffusion, intermixing, and chemical reaction. An ultrathin Pt layer (8 Å thick) deposited on a substrate at low temperature is laterally uniform with some degree of intermixing across the interface. Brief anneals at 1000 °C result in aggregation of the Pt into islands interspersed with essentially bare SiC. Higher temperatures lead to reacti

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Eka Putri, Nabila Anjani, and Sukaris Sukaris. "OPTIMALISASI LAYANAN POSAJA DAN FREE PICK UP SERVICE TERHADAP KEPUASAN PELANGGAN." Jurnal Ilmiah Ekonomi Manajemen Jurnal Ilmiah Multi Science 13, no. 2 (2023): 70–80. http://dx.doi.org/10.52657/jiem.v13i2.1909.

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Perkembangan teknologi yang semakin pesat, mengharuskan perusahaan untuk bertindak dengan cepat dan tepat agar tidak kalah saing dengan perusahaan lainnya. Begitu pula dengan PT Pos Indonesia (Persero), yang merupakan salah satu BUMN di Indonesia juga diharuskan melakukan optimalisasi pelayanan agar tidak kalah dengan pesaing lainnya. Penelitian ini bertujuan untuk mengetahui optimalisasi layanan PosAja dan free pickup service terhadap kepuasan pelanggan di PT Pos Indonesia (Persero) Kantor Cabang Utama Jember. Penelitian ini dilakukan dengan pendekatan kualitatif dengan pengambilan data mengg

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Tang, Yongfu, Teng Chen, and Wenfeng Guo. "Surfactant-Free Synthesis of Reduced Graphene Oxide Supported Well-Defined Polyhedral Pd-Pt Nanocrystals for Oxygen Reduction Reaction." Catalysts 9, no. 9 (2019): 756. http://dx.doi.org/10.3390/catal9090756.

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Well-defined polyhedral Pd-Pt nanocrystals anchored on the reduced graphene oxide (rGO) are successfully synthesized via a facile and efficient surfactant-free solvothermal route. The formation mechanism is carefully illustrated via tuning the surface state of rGO substrate and the Pd/Pt ratio in Pd-Pt nanocrystals. rGO substrates with continuous smooth surface, which can offer continuous 2D larger π electrons, play important roles in the formation of the well-defined polyhedral Pd-Pt nanocrystals. Suitable Pd/Pt ratio, which determines the affinity between the rGO substrate and polyhedral Pd-

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