A three-dimensional hierarchically porous mo2c architecture: salt-template synthesis of a robust electrocatalyst and anode material towards the hydrogen evolution reaction and lithium storage
文献类型：期刊论文
| 作者 | Meng, Tao1; Zheng, Lirong2; Qin, Jinwen1; Zhao, Di1; Cao, Minhua1 |
| 刊名 | Journal of materials chemistry a
 |
| 出版日期 | 2017-10-14 |
| 卷号 | 5期号:38页码:20228-20238 |
| ISSN号 | 2050-7488 |
| DOI | 10.1039/c7ta05946a |
| 通讯作者 | Cao, minhua(caomh@bit.edu.cn) |
| 英文摘要 | Constructing a three-dimensional (3d) hierarchically porous architecture to increase the active sites and decrease the relevant transfer resistance has been considered as an effective strategy to improve the performance of nanomaterials in electrochemical energy conversion and storage. in this work, we for the first time demonstrate a facile and scalable salt-template method to prepare novel hierarchically macromeso-microporous molybdenum carbide (mo2c) with a 3d architecture (3dhp-mo2c). remarkably, the well-defined and abundant hierarchical macro-meso-micropores of 3dhp-mo2c can not only significantly enhance the mass transport and electron transfer, but also markedly increase the specific surface area to effectively expose the electrochemically accessible active sites. besides, x-ray absorption near-edge structure (xanes) measurements reveal that the carbide matrix can modify the d-electron configuration of the mo2c particles and impart a moderate mo-h binding energy. when evaluated as an electrocatalyst for the hydrogen evolution reaction (her), 3dhp-mo2c exhibits excellent electrocatalytic performance in terms of small overpotential under both acidic and basic conditions, along with exceptional stability. apart from its outstanding her performance, 3dhp-mo2c also shows a high specific capacity, superior cycling stability and good rate capability as an anode material for lithium ion batteries (libs). this synthesis strategy may pave the way to the fabrication of a large variety of promising noble metal-free hybrid materials with a 3d hierarchical pore structure for achieving high-performance applications in energy fields. |
| WOS关键词 | PERFORMANCE OXYGEN REDUCTION ; ION BATTERY ANODE ; MOLYBDENUM CARBIDE ; EFFICIENT ELECTROCATALYST ; MULTIPLE PHASES ; CARBON ; HYBRID ; NANOPARTICLES ; NANOSHEETS ; NANOCRYSTALS |
| 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:000412781700017 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177114 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Cao, Minhua |
| 作者单位 | 1.Beijing Inst Technol, Sch Chem & Chem Engn, Beijing Key Lab Photoelect Electrophoton Convers, Key Lab Cluster Sci,Minist Educ China, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Lab, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Tao,Zheng, Lirong,Qin, Jinwen,et al. A three-dimensional hierarchically porous mo2c architecture: salt-template synthesis of a robust electrocatalyst and anode material towards the hydrogen evolution reaction and lithium storage[J]. Journal of materials chemistry a,2017,5(38):20228-20238. |
| APA | Meng, Tao,Zheng, Lirong,Qin, Jinwen,Zhao, Di,&Cao, Minhua.(2017).A three-dimensional hierarchically porous mo2c architecture: salt-template synthesis of a robust electrocatalyst and anode material towards the hydrogen evolution reaction and lithium storage.Journal of materials chemistry a,5(38),20228-20238. |
| MLA | Meng, Tao,et al."A three-dimensional hierarchically porous mo2c architecture: salt-template synthesis of a robust electrocatalyst and anode material towards the hydrogen evolution reaction and lithium storage".Journal of materials chemistry a 5.38(2017):20228-20238. |
入库方式： iSwitch采集
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。