| Carbon-Shielded Single-Atom Alloy Material Family for Multi-Functional Electrocatalysis | |
| Tong, Yueyu1,2; Liu, Jiaxin1; Wang, Liqun3; Su, Bing-Jian4; Wu, Kuang-Hsu5; Juang, Jenh-Yih4; Hou, Feng1; Yin, Lichang6,7; Dou, Shi Xue2; Liu, Jian8,9; Liang, Ji1 | |
| Corresponding Author | Hou, Feng(houf@tju.edu.cn) ; Yin, Lichang(lcyin@imr.ac.cn) ; Liu, Jian(jian.liu@surrey.ac.uk) ; Liang, Ji(liangji@tju.edu.cn) |
| 2022-08-15 | |
| Source Publication | ADVANCED FUNCTIONAL MATERIALS
 |
| ISSN | 1616-301X |
| Pages | 11 |
| Abstract | Encapsulating metal-based catalysts inside carbon sheaths is a frequently-adopted strategy to enhance their durability under various harsh situations and improve their catalytic activity simultaneously. Such carbon encapsulation, however, imposes significant complications for directly modifying materials' surface atomic/electronic configurations, fundamentally impeding the accurate tuning of their catalytic capabilities. Herein, a universal single-atom alloy (SAA) strategy is reported to indirectly yet precisely manipulate the surface electronic structure of carbon-encapsulated electrocatalysts. By versatilely constructing a SAA core inside an N-doped carbon sheath, material's electrocatalytic capability can be flexibly tuned. The one with Ru-SAA cores serves as an excellent bifunctional electrocatalyst for oxygen/hydrogen evolution, exhibiting minimal cell voltage of 1.55 V (10 mA cm(-2)) and outstanding mass activity of 1251 mA mgRu-1${\rm{g}}_{{\rm{Ru}}}<^>{ - 1}$ for overall water splitting, while the one with Ir-SAA cores possesses superior oxygen reduction activity with a half-wave potential of 919 mV. Density functional theory calculations reveal that the doped atoms can simultaneously optimize the adsorption of protons (H*) and oxygenated intermediates (OH*, O*, and OOH*) to achieve the remarkable thermoneutral hydrogen evolution and enhanced oxygen evolution. This work thus demonstrates a versatile strategy to precisely modify the surface electronic properties of carbon-shielded materials for optimized performances. |
| Keyword | multifunctional electrocatalysts oxygen reduction reactions remote manipulations single atom alloys water splitting |
| Funding Organization | Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province, China ; Australian Research Council (ARC) ; Electron Microscopy Center in the University of Wollongong |
| DOI | 10.1002/adfm.202205654 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of China[22179093] ; Natural Science Foundation of China[21905202] ; Natural Science Foundation of China[51972312] ; Natural Science Foundation of Liaoning Province, China[2020-MS-003] ; Australian Research Council (ARC)[DP200100365] ; Australian Research Council (ARC)[DP210102215] ; Electron Microscopy Center in the University of Wollongong |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000840685500001 |
| Publisher | WILEY-V C H VERLAG GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174480 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Hou, Feng; Yin, Lichang; Liu, Jian; Liang, Ji |
| Affiliation | 1.Tianjin Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Ceram & Machining Technol, Tianjin 300350, Peoples R China 2.Univ Wollongong, Australian Inst Innovat Mat, Inst Superconducting & Elect Mat, Innovat Campus,Squires Way, North Wollongong, NSW 2500, Australia 3.Tianjin Normal Univ, Coll Phys & Mat Sci, Appl Phys Dept, Tianjin 300387, Peoples R China 4.Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 30076, Taiwan 5.Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia 6.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 7.Huaibei Normal Univ, Dept Phys & Elect Informat, Huaibei 235000, Anhui, Peoples R China 8.Univ Surrey, DICP Surrey Joint Ctr Future Mat, Dept Chem & Proc Engn, Guildford GU2 7XH, Surrey, England 9.Univ Surrey, Adv Technol Inst, Guildford GU2 7XH, Surrey, England |
| Recommended Citation GB/T 7714 | Tong, Yueyu,Liu, Jiaxin,Wang, Liqun,et al. Carbon-Shielded Single-Atom Alloy Material Family for Multi-Functional Electrocatalysis[J]. ADVANCED FUNCTIONAL MATERIALS,2022:11. |
| APA | Tong, Yueyu.,Liu, Jiaxin.,Wang, Liqun.,Su, Bing-Jian.,Wu, Kuang-Hsu.,...&Liang, Ji.(2022).Carbon-Shielded Single-Atom Alloy Material Family for Multi-Functional Electrocatalysis.ADVANCED FUNCTIONAL MATERIALS,11. |
| MLA | Tong, Yueyu,et al."Carbon-Shielded Single-Atom Alloy Material Family for Multi-Functional Electrocatalysis".ADVANCED FUNCTIONAL MATERIALS (2022):11. |
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