Efficient Reversible Conversion between MoS2 and Mo/Na2S Enabled by Graphene-Supported Single Atom Catalysts
文献类型：期刊论文
| 作者 | Chen, Biao2,3; Wang, Tianshuai4; Zhao, Shiyong5,6; Tan, Junyang2,3; Zhao, Naiqin1,7; Jiang, San Ping5,6; Zhang, Qianfan4; Zhou, Guangmin2,3; Cheng, Hui-Ming2,3,8 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2021-02-18 |
| 页码 | 12 |
| 关键词 | Mo/Na2S MoS2 reversible conversion single-atom catalysts sodium-ion batteries transition metal sulfides |
| ISSN号 | 0935-9648 |
| DOI | 10.1002/adma.202007090 |
| 通讯作者 | Jiang, San Ping(s.jiang@curtin.edu.au) ; Zhang, Qianfan(qianfan@buaa.edu.cn) ; Zhou, Guangmin(guangminzhou@sz.tsinghua.edu.cn) ; Cheng, Hui-Ming(hmcheng@sz.tsinghua.edu.cn) |
| 英文摘要 | Sodium-ion batteries (SIBs) based on conversion-type metal sulfide (MS) anodes have attracted extraordinary attention due to relatively high capacity and intrinsic safety. The highly reversible conversion of M/Na2S to pristine MS in charge plays a vital role with regard to the electrochemical performance. Here, taking conventional MoS2 as an example, guided by theoretical simulations, a catalyst of iron single atoms on nitrogen-doped graphene (SAFe@NG) is selected and first used as a substrate to facilitate the reaction kinetics of MoS2 in the discharging process. In the following charging process, using a combination of spectroscopy and microscopy, it is demonstrated that the SAFe@NG catalyst enables an efficient reversible conversion reaction of Mo/Na2S -> NaMoS2 -> MoS2. Moreover, theoretical simulations reveal that the reversible conversion mechanism shows favorable formation energy barrier and reaction kinetics, in which SAFe@NG with the Fe-N-4 coordination center facilitates the uniform dispersion of Na2S/Mo and the decomposition of Na2S and NaMoS2. Therefore, efficient reversible conversion reaction MoS2 <-> NaMoS2 <-> Mo/Na2S is enabled by the SAFe@NG catalyst. This work contributes new avenues for designing conversion-type materials with an efficient reversible mechanism. |
| 资助项目 | China Postdoctoral Science Foundation[2020TQ0159] ; China Postdoctoral Science Foundation[2020M680544] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515110745] ; National Key Research and Development Program of China[2019YFA0705700] ; National Key Research and Development Program of China[2017YFB0702100] ; National Natural Science Foundation of China[52072205] ; National Natural Science Foundation of China[11404017] ; National Natural Science Foundation of China[51972225] ; Shenzhen Geim Graphene Center |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000619023300001 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | China Postdoctoral Science Foundation ; Guangdong Basic and Applied Basic Research Foundation ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; Shenzhen Geim Graphene Center |
| 源URL | [http://ir.imr.ac.cn/handle/321006/160826]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jiang, San Ping; Zhang, Qianfan; Zhou, Guangmin; Cheng, Hui-Ming |
| 作者单位 | 1.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300350, Peoples R China 2.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China 3.Tsinghua Univ, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China 4.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China 5.Curtin Univ, Fuels & Energy Technol Inst, Perth, WA 6102, Australia 6.Curtin Univ, WA Sch Mines Minerals Energy & Chem Engn, Perth, WA 6102, Australia 7.Tianjin Univ, Tianjin Key Lab Composite & Funct Mat, Tianjin 300350, Peoples R China 8.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Biao,Wang, Tianshuai,Zhao, Shiyong,et al. Efficient Reversible Conversion between MoS2 and Mo/Na2S Enabled by Graphene-Supported Single Atom Catalysts[J]. ADVANCED MATERIALS,2021:12. |
| APA | Chen, Biao.,Wang, Tianshuai.,Zhao, Shiyong.,Tan, Junyang.,Zhao, Naiqin.,...&Cheng, Hui-Ming.(2021).Efficient Reversible Conversion between MoS2 and Mo/Na2S Enabled by Graphene-Supported Single Atom Catalysts.ADVANCED MATERIALS,12. |
| MLA | Chen, Biao,et al."Efficient Reversible Conversion between MoS2 and Mo/Na2S Enabled by Graphene-Supported Single Atom Catalysts".ADVANCED MATERIALS (2021):12. |
入库方式： OAI收割
来源：金属研究所
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