Tuning carbon nanotube-grafted core-shell-structured cobalt selenide@carbon hybrids for efficient oxygen evolution reaction
文献类型：期刊论文
| 作者 | Yuan, Menglei1,2; Wang, Meng1,2; Lu, Peilong1,2; Sun, Yu3; Dipazir, Sobia1,2; Zhang, Jingxian1,2; Li, Shuwei1; Zhang, Guangjin1 |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 533页码:503-512 |
| 关键词 | CoSe2 Zeolite imidazole frameworks Oxygen evolution reaction Alkaline medium |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2018.08.104 |
| 英文摘要 | The electrochemical oxygen evolution reaction (OER) is sparked extensive interest in efficient energy storage and conversion. Cobalt Selenide (CoSe2) is believed to be one of the promising candidates for OER based on Yang Shao-Horn's principle. However, owing to low exposure of active sites and/or low efficiency of electron transfer, the electrocatalytic activity of CoSe2 is far less than expected. In this work, a novel carbon nanotubes (CNT) grafted 3D core-shell structured CoSe2@C-CNT nanohybrid is developed by a general hydrothermal-calcination strategy. Zeolite imidazole frameworks (ZIF) was used as the precursor to synthesis of the materials. It is found that both the calcination temperature and the selenium content can significantly regulate the catalytic performance of the hybrids. The obtained best catalysts requires the overpotential of only 306 mV and 345 mV to reach a current density of 10 mA cm(-2) and 50 mA cm(-2) in 1.0 MKOH medium, respectively. It also exhibits a small Tafel slope of 46 mV dec(-1) and excellent durability, which is superior to most of recently reported CoSe2-based and Co-based materials. These superior performances can be ascribed to synergistic effects of the highly active CoSe2 nanostructure, defect carbon species and the carbon nanotubes exist in the catalyst. Besides, the unique morphology leads to large electrochemical surface area of the catalyst, which is in favor of the exposure of active sites for OER. Due to high efficiency, low cost and excellent durability for OER, the prepared catalysts showed can be potentially used to substitute noble metals utilized in related energy storage and conversion devices. (C) 2018 Elsevier Inc. All rights reserved. |
| WOS关键词 | METAL-ORGANIC FRAMEWORK ; NITROGEN-DOPED CARBON ; WATER-OXIDATION ; BIFUNCTIONAL ELECTROCATALYST ; CATALYST ; COSE2 ; NANOSHEETS ; REDUCTION ; NANOPARTICLES ; COMPOSITES |
| 资助项目 | National Natural Science Foundation of China[91545125] ; National Natural Science Foundation of China[U1662121] ; Youth Innovation Promotion Association of CAS |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000447815200052 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/26440]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhang, Guangjin |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China 3.North Univ China, Sch Sci, Taiyuan 030051, Shanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Menglei,Wang, Meng,Lu, Peilong,et al. Tuning carbon nanotube-grafted core-shell-structured cobalt selenide@carbon hybrids for efficient oxygen evolution reaction[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2019,533:503-512. |
| APA | Yuan, Menglei.,Wang, Meng.,Lu, Peilong.,Sun, Yu.,Dipazir, Sobia.,...&Zhang, Guangjin.(2019).Tuning carbon nanotube-grafted core-shell-structured cobalt selenide@carbon hybrids for efficient oxygen evolution reaction.JOURNAL OF COLLOID AND INTERFACE SCIENCE,533,503-512. |
| MLA | Yuan, Menglei,et al."Tuning carbon nanotube-grafted core-shell-structured cobalt selenide@carbon hybrids for efficient oxygen evolution reaction".JOURNAL OF COLLOID AND INTERFACE SCIENCE 533(2019):503-512. |
入库方式： OAI收割
来源：过程工程研究所
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