Electrochemical promotion of the hydrogenation of CO2 on Ru deposited on a BZY proton conductor
作者： I. Kalaitzidou , A. Katsaounis , T. Norby , C.G. Vayenas
DOI: 10.1016/J.JCAT.2015.08.023
关键词: Electrochemistry 、 Proton conductor 、 Chemical kinetics 、 Catalysis 、 Faraday efficiency 、 Chemistry 、 Selectivity 、 Non-blocking I/O 、 Methanation 、 Inorganic chemistry
摘要: Abstract The kinetics and the electrochemical promotion of hydrogenation CO2 on polycrystalline Ru deposited BZY (BaZr0.85Y0.15O3−α + 1 wt% NiO), a proton conductor in wet atmospheres, with α ≈ 0.075, was investigated at temperatures 300–450 °C atmospheric pressure. Methane CO were only detectable products selectivity to CH4 could be reversibly controlled between 15% 65% by varying catalyst potential less than 1.2 V. rate are very significantly enhanced removal from via electrochemically spillover atomic H surface proton-conducting support. effect is strongly non-Faradaic apparent Faradaic efficiency methanation takes values up 500 depends porous film thickness. observed strong promotional effect, conjunction reaction kinetics, good agreement rules chemical promotion.
sci-hub.se 参考文章(65)
Michael R Prairie, Albert Renken, James G Highfield, K Ravindranathan Thampi, Michael Grätzel, A fourier transform infrared spectroscopic study of C02 methanation on supported ruthenium Journal of Catalysis. ,vol. 129, pp. 130- 144 ,(1991) , 10.1016/0021-9517(91)90017-X
T. Yajima, H. Suzuki, T. Yogo, H. Iwahara, Protonic conduction in SrZrO3-based oxides Solid State Ionics. ,vol. 51, pp. 101- 107 ,(1992) , 10.1016/0167-2738(92)90351-O
Jun Ma, Nannan Sun, Xuelan Zhang, Ning Zhao, Fukui Xiao, Wei Wei, Yuhan Sun, A short review of catalysis for CO2 conversion Catalysis Today. ,vol. 148, pp. 221- 231 ,(2009) , 10.1016/J.CATTOD.2009.08.015
C. G. Vayenas, S. Bebelis, S. Ladas, Dependence of catalytic rates on catalyst work function Nature. ,vol. 343, pp. 625- 627 ,(1990) , 10.1038/343625A0
Boxun Hu, Curtis Guild, Steven L. Suib, Thermal, electrochemical, and photochemical conversion of CO2 to fuels and value-added products Journal of CO 2 Utilization. ,vol. 1, pp. 18- 27 ,(2013) , 10.1016/J.JCOU.2013.03.004
C. Janke, M.S. Duyar, M. Hoskins, R. Farrauto, Catalytic and adsorption studies for the hydrogenation of CO2 to methane Applied Catalysis B-environmental. ,vol. 152, pp. 184- 191 ,(2014) , 10.1016/J.APCATB.2014.01.016
A. de Lucas-Consuegra, J. González-Cobos, Y. García-Rodríguez, A. Mosquera, J.L. Endrino, J.L. Valverde, Enhancing the catalytic activity and selectivity of the partial oxidation of methanol by electrochemical promotion Journal of Catalysis. ,vol. 293, pp. 149- 157 ,(2012) , 10.1016/J.JCAT.2012.06.016
S Wodiunig, Electrochemical promotion of RuO2-catalysts for the gas phase combustion of C2H4 Solid State Ionics. ,vol. 136-137, pp. 813- 817 ,(2000) , 10.1016/S0167-2738(00)00505-1
C.G. Vayenas, D. Tsiplakides, On the work function of the gas-exposed electrode surfaces in solid state electrolyte cells Surface Science. ,vol. 467, pp. 23- 34 ,(2000) , 10.1016/S0039-6028(00)00775-5
A. L. Lapidus, N. A. Gaidai, N. V. Nekrasov, L. A. Tishkova, Yu. A. Agafonov, T. N. Myshenkova, The mechanism of carbon dioxide hydrogenation on copper and nickel catalysts Petroleum Chemistry. ,vol. 47, pp. 75- 82 ,(2007) , 10.1134/S0965544107020028