caa a22 4500 606174540 CHVBK 20210128100738.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s11244-015-0487-5 doi (NATIONALLICENCE)springer-10.1007/s11244-015-0487-5 On the Effect of Cu on the Activity of Carbon Supported Ni Nanoparticles for Hydrogen Electrode Reactions in Alkaline Medium [Elektronische Daten] [Alexandr Oshchepkov, Pavel Simonov, Olga Cherstiouk, Renat Nazmutdinov, Dmitrii Glukhov, Vladimir Zaikovskii, Tatyana Kardash, Ren Kvon, Antoine Bonnefont, Alexandr Simonov, Valentin Parmon, Elena Savinova] Effects of adding varied amounts of copper to carbon-supported nickel particles on their structure, composition and electrocatalytic activity for the hydrogen oxidation and evolution reactions in alkaline medium have been explored. Ni1-x Cu x /C catalysts were prepared by the incipient wetness impregnation. Comprehensive characterization of the catalysts included X-ray powder diffraction, X-ray photoelectron spectroscopic, transmission electron microscopic and cyclic voltammetric analyses, while atomistic Monte Carlo simulations have been undertaken to obtain further insights into the structure of the bimetallic NiCu nanoparticles. We found that compared to monometallic Ni, NiCu nanoparticles show lower propensity towards oxidation under ambient conditions. Furthermore, we report that adding Cu allows increasing the surface-weighted electrocatalytic activity, and the specific surface area of Ni1-x Cu x /C electrodes, both contributing to a ca four-fold enhancement of the mass-weighted activity. The nature of the synergistic interactions between Ni and Cu is proposed on the basis of the analysis of experimental data and Monte Carlo structural modelling results. Springer Science+Business Media New York, 2015 Hydrogen oxidation and evolution reactions nationallicence Alkaline solutions nationallicence Nickel nationallicence Copper nationallicence Carbon support nationallicence Monte Carlo simulations nationallicence Oshchepkov Alexandr Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut Simonov Pavel Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut Cherstiouk Olga Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut Nazmutdinov Renat Kazan National Research Technological University, 420015, Kazan, Russia aut Glukhov Dmitrii Kazan National Research Technological University, 420015, Kazan, Russia aut Zaikovskii Vladimir Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut Kardash Tatyana Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut Kvon Ren Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut Bonnefont Antoine Institut de Chimie de Strasbourg, UMR 7177 CNRS-University of Strasbourg, 67070, Strasbourg, France aut Simonov Alexandr School of Chemistry, Monash University, 3800, Clayton, VIC, Australia aut Parmon Valentin Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut Savinova Elena Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS-University of Strasbourg, 67087, Strasbourg Cedex, France aut Topics in Catalysis Springer US; http://www.springer-ny.com 58/18-20(2015-11-01), 1181-1192 1022-5528 58:18-20<1181 2015 58 11244 https://doi.org/10.1007/s11244-015-0487-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11244-015-0487-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Oshchepkov Alexandr Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Simonov Pavel Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Cherstiouk Olga Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Nazmutdinov Renat Kazan National Research Technological University, 420015, Kazan, Russia aut NATIONALLICENCE 700 1- Glukhov Dmitrii Kazan National Research Technological University, 420015, Kazan, Russia aut NATIONALLICENCE 700 1- Zaikovskii Vladimir Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Kardash Tatyana Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Kvon Ren Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Bonnefont Antoine Institut de Chimie de Strasbourg, UMR 7177 CNRS-University of Strasbourg, 67070, Strasbourg, France aut NATIONALLICENCE 700 1- Simonov Alexandr School of Chemistry, Monash University, 3800, Clayton, VIC, Australia aut NATIONALLICENCE 700 1- Parmon Valentin Boreskov Institute of Catalysis, 630090, Novosibirsk, Russia aut NATIONALLICENCE 700 1- Savinova Elena Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS-University of Strasbourg, 67087, Strasbourg Cedex, France aut NATIONALLICENCE 773 0- Topics in Catalysis Springer US; http://www.springer-ny.com 58/18-20(2015-11-01), 1181-1192 1022-5528 58:18-20<1181 2015 58 11244