A Redox-anchoring Approach to Well-dispersed MoCx/C Nanocomposite for Efficient Electrocatalytic Hydrogen Evolution
文献类型：期刊论文
| 作者 | Zhou, Yajun1,2; Zhang, Lingxia1; Huang, Weimin1; Wang, Min1,2; Chen, Lisong3; Cui, Xiangzhi1; Zhang, Xiaohua1,2; Shi, Jianlin1,4 |
| 刊名 | CHEMISTRY-AN ASIAN JOURNAL
 |
| 出版日期 | 2017-02-16 |
| 卷号 | 12期号:4页码:446-452 |
| 关键词 | electrocatalysis hydrogen evolution reaction molybdenum carbide nanocomposites redox-anchoring |
| 英文摘要 | Here we report a redox-anchoring strategy for synthesizing a non-noble metal carbide (MoCx) nanocomposite electrocatalyst for water electrolysis in acidic media, using glucose and ammonium heptamolybdate as carbon and Mo precursors, respectively, without the need of gaseous carbon sources such as CH4. Specifically, the aldehyde groups of glucose are capable of reducing Mo6+ to Mo4+ (MoO2), and thus molybdenum species can be well anchored by a redox reaction onto a carbon matrix to prevent the aggregation of MoCx nanoparticles during the following carbonization process. The morphology and chemical composition of the elec-trocatalysts were well characterized by BSE-SEM, TEM, XRD and XPS. The obtained MoCx-2 sample showed a reasonably high hydrogen evolution reaction (HER) activity and excellent stability in an acidic electrolyte, and its overpotential required for a current density output of 20 mAcm(-2) is as low as 193 mV. Such a prominent performance is ascribed to the excellent dispersity and nano-size, and the large reactive surface area of MoCx particles. This work may open a new way to the design and fabrication of other non-noble metal carbide nanocatalysts for various electrochemical applications. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | MOLYBDENUM CARBIDE NANOPARTICLES ; MULTIPLE PHASES ; DOPED GRAPHENE ; PERFORMANCE ; GENERATION ; CATALYSTS ; COBALT ; OXIDE ; CARBURIZATION ; COMPOSITES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000397025000010 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23692]  |
| 专题 | 上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.East China Normal Univ, Sch Chem & Mol Engn, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China 4.Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM00, Nanjing 211800, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yajun,Zhang, Lingxia,Huang, Weimin,et al. A Redox-anchoring Approach to Well-dispersed MoCx/C Nanocomposite for Efficient Electrocatalytic Hydrogen Evolution[J]. CHEMISTRY-AN ASIAN JOURNAL,2017,12(4):446-452. |
| APA | Zhou, Yajun.,Zhang, Lingxia.,Huang, Weimin.,Wang, Min.,Chen, Lisong.,...&Shi, Jianlin.(2017).A Redox-anchoring Approach to Well-dispersed MoCx/C Nanocomposite for Efficient Electrocatalytic Hydrogen Evolution.CHEMISTRY-AN ASIAN JOURNAL,12(4),446-452. |
| MLA | Zhou, Yajun,et al."A Redox-anchoring Approach to Well-dispersed MoCx/C Nanocomposite for Efficient Electrocatalytic Hydrogen Evolution".CHEMISTRY-AN ASIAN JOURNAL 12.4(2017):446-452. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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