Selective co2 electroreduction over an oxidederived gallium catalyst
文献类型：期刊论文
| 作者 | Yan, Chengcheng1,2,3; Lin, Long1,2,3; Gao, Dunfeng1,2; Wang, Guoxiong1,2; Bao, Xinhe1,2 |
| 刊名 | Journal of materials chemistry a
 |
| 出版日期 | 2018-10-28 |
| 卷号 | 6期号:40页码:19743-19749 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c8ta08613c |
| 通讯作者 | Wang, guoxiong(wanggx@dicp.ac.cn) ; Bao, xinhe(xhbao@dicp.ac.cn) |
| 英文摘要 | The electrochemical co2 reduction reaction (co2rr) powered by renewable electricity has emerged as a promising approach to alleviate global warming and energy depletion simultaneously. notably, efficient catalysts containing earth-abundant elements to achieve high co2rr performance are in great demand for future applications. herein, carbon-supported gallia gel nanoparticles were synthesized by precipitating gallium nitrate on carbon black in an ethanolic ammonia solution. nano-sized gallia nanoparticles uniformly dispersed on the carbon support achieved a maximum co faradaic efficiency of 77.0% at -0.71 v vs. the reversible hydrogen electrode (rhe) in co2-saturated 0.1 m khco3 solution, showing a dramatic improvement compared to a bulk ga electrode with only 24.2% co faradaic efficiency at -0.80 v vs. rhe. x-ray photoelectron spectroscopy measurements revealed that surface ga3+ species were reduced to metallic ga when subjected to a negative potential during the co2rr, indicative of the formation of oxide-derived active gallium sites. control experiments further highlighted the necessity of close coalescence between the nano-sized gallia particles and the conductive carbon support. the present study underscores the feasibility of improving the co2rr performance of ga-related materials through nanostructuring of oxide-derived gallium catalysts. |
| WOS关键词 | ELECTROCHEMICAL REDUCTION ; CARBON-DIOXIDE ; ELECTROCATALYTIC REDUCTION ; AU NANOPARTICLES ; METAL-ELECTRODES ; CU ELECTRODES ; SPECTROSCOPY ; CONVERSION |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
| WOS类目 | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000448413100047 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373128 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Wang, Guoxiong; Bao, Xinhe |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Chengcheng,Lin, Long,Gao, Dunfeng,et al. Selective co2 electroreduction over an oxidederived gallium catalyst[J]. Journal of materials chemistry a,2018,6(40):19743-19749. |
| APA | Yan, Chengcheng,Lin, Long,Gao, Dunfeng,Wang, Guoxiong,&Bao, Xinhe.(2018).Selective co2 electroreduction over an oxidederived gallium catalyst.Journal of materials chemistry a,6(40),19743-19749. |
| MLA | Yan, Chengcheng,et al."Selective co2 electroreduction over an oxidederived gallium catalyst".Journal of materials chemistry a 6.40(2018):19743-19749. |
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来源：大连化学物理研究所
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