DOI: 10.1016/j.jcou.2018.07.020
Scopus记录号: 2-s2.0-85051930201
论文题名: Effect of catalyst layer on electrochemical reduction of carbon dioxide using different morphologies of copper
作者: Malik K. ; Bajaj N.K. ; Verma A.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 27 起始页码: 355
结束页码: 365
语种: 英语
英文关键词: Catalyst layer
; Crystal rearrangement
; Electrochemical reduction of CO2
; Hydrocarbon
; Morphology
Scopus关键词: Carbon dioxide
; Electrocatalysts
; Electrolytic reduction
; Hydrocarbons
; Morphology
; Nanoparticles
; Nanorods
; Catalyst layers
; Crystal rearrangement
; Electrocatalyst layers
; Electrochemical reductions
; Faradaic efficiencies
; Octahedral nanoparticles
; Renewable energy storages
; Spherical nanoparticles
; Copper
英文摘要: Electrochemical reduction of carbon dioxide (ERC) is one of the promising technologies for the renewable energy storage challenge and mitigation of the CO2 levels. Till now Cu has been found the best electrocatalyst for ERC but still the potential of Cu is not fully explored. This paper illustrates the effect of electrocatalyst layer formed by four different morphologies of cupper (nanorods, octahedral, spherical, and dendrite) with similar crystallite phases. Pre and post-ERC analysis of the catalyst in different environment shows that same crystal facet is formed at the end of ERC, indicating that the crystal rearrangement occurred during ERC is independent of the environment and does not promote any particular reaction. Nanorods form intercalated layers with an extended surface giving maximum faradaic efficiency of 26% at a lower cell voltage of -2.75 V. Dendrites forms porous layers, which are filled by the gas formed during ERC and thus decreases the active surface. However, the entrapped intermediates provide sufficient residence time and conditions for C2H4 and C2H6 formation. Spherical nanoparticles and octahedral nanoparticles formed a smooth, and thin layer with minimum faradaic efficiency towards ERC. © 2018 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111819
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Sustainable Environergy Research Lab (SERL), Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India
Recommended Citation:
Malik K.,Bajaj N.K.,Verma A.. Effect of catalyst layer on electrochemical reduction of carbon dioxide using different morphologies of copper[J]. Journal of CO2 Utilization,2018-01-01,27