Low charge overpotential of lithium-oxygen batteries with metallic Co encapsulated in single-layer graphene shell as the catalyst
文献类型：期刊论文
| 作者 | Ding, Ding4; Tu, Yunchuan1,2,3; Li, Haobo1,3; Deng, Dehui1,2; Xiao, Jianping1; Cui, Xiaoju1,2,3; Chen, Mingshu4; Sao, Xinhe1 |
| 刊名 | NANO ENERGY
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 30页码:877-884 |
| 关键词 | Charge overpotential Electrocatalysis Electron transfer Lithium-oxygen batteries Non-precious metals |
| 英文摘要 | Rechargeable lithium-oxygen (Li-O-2) battery has triggered tremendous attention as a promising candidate power source for portable electronics and light vehicles. Until now, a critical scientific challenge facing Li-O-2 battery is the high charge overpotential due to the sluggish oxygen evolution reaction (OER) on the oxygen electrode, which results in low energy efficiency and poor cyclability. Here, we demonstrated that nitrogen-doped single layer graphene shell encapsulating non-precious metal Co can be used as a highly efficient catalyst for Li-O-2 batteries. The catalyst showed significantly enhanced OER catalytic activity, with a charge overpotential of 0.58 V, which was remarkably lower compared with the corresponding N-free graphene encapsulating metal, metal oxide and metal-free carbon materials. DFT calculations revealed that the nitrogen dopants and enclosed metal clusters can synergistically modulate the electronic properties of the graphene surface, resulting in a dramatic reduction of the overpotentials. This study provides the possibility of the rational non-precious metal electrocatalysts designing for Li-O-2 batteries. (C) 2016 Published by Elsevier Ltd. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 关键词[WOS] | NONAQUEOUS LI-O-2 BATTERIES ; N-DOPED GRAPHENE ; AIR BATTERIES ; NANOTUBE COMPOSITE ; REDUCTION REACTION ; CATHODE CATALYSTS ; CARBON ELECTRODE ; NANOPARTICLES ; ELECTROCATALYSTS ; PERFORMANCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000390636100101 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/151829]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, iChEM, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Xiamen Univ, Coll Chem & Chem Engn, Collaborat Innovat Ctr Chem Energy Mat, Xiamen 361005, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 4.Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Ding,Tu, Yunchuan,Li, Haobo,et al. Low charge overpotential of lithium-oxygen batteries with metallic Co encapsulated in single-layer graphene shell as the catalyst[J]. NANO ENERGY,2016,30:877-884. |
| APA | Ding, Ding.,Tu, Yunchuan.,Li, Haobo.,Deng, Dehui.,Xiao, Jianping.,...&Sao, Xinhe.(2016).Low charge overpotential of lithium-oxygen batteries with metallic Co encapsulated in single-layer graphene shell as the catalyst.NANO ENERGY,30,877-884. |
| MLA | Ding, Ding,et al."Low charge overpotential of lithium-oxygen batteries with metallic Co encapsulated in single-layer graphene shell as the catalyst".NANO ENERGY 30(2016):877-884. |
入库方式： OAI收割
来源：大连化学物理研究所
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