Metal (Hydr)oxides@Polymer Core-Shell Strategy to Metal Single-Atom Materials
文献类型：期刊论文
| ; | |
| 作者 | Zhang, ML; Wang, YG; Chen, WX; Dong, JC ; Zheng, LR; Luo, J; Wan, JW; Tian, SB; Cheong, WC; Wang, DS
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| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 ; JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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| 出版日期 | 2017 ; 2017 |
| 卷号 | 139期号:32页码:10976-10979 |
| ISSN号 | 0002-7863 ; 0002-7863 |
| DOI | 10.1021/jacs.7b05372 ; 10.1021/jacs.7b05372 |
| 文献子类 | Article ; Article |
| 英文摘要 | Preparing metal single-atom materials is currently attracting tremendous attention and remains a significant challenge. Herein, we report a novel core-shell strategy to synthesize single-atom materials. In this strategy, metal hydroxides or oxides are coated with polymers, followed by high-temperature pyrolysis and acid leaching, metal single atoms are anchored on the inner wall of hollow nitrogen-doped carbon (CN) materials. By changing metal precursors or polymers, we demonstrate the successful synthesis of different metal single atoms dispersed on CN materials (SA-M/CN, M = Fe, Co, Ni, Mn, FeCo, FeNi, etc.). Interestingly, the obtained SA-Fe/CN exhibits much higher catalytic activity for hydroxylation of benzene to phenol than Fe nanoparticles/CN (45% vs 5% benzene conversion). First-principle calculations further reveal that the high reactivity originates from the easier formation of activated oxygen species at the single Fe site. Our methodology provides a convenient route to prepare a variety of metal single-atom materials representing a new class of catalysts.; Preparing metal single-atom materials is currently attracting tremendous attention and remains a significant challenge. Herein, we report a novel core-shell strategy to synthesize single-atom materials. In this strategy, metal hydroxides or oxides are coated with polymers, followed by high-temperature pyrolysis and acid leaching, metal single atoms are anchored on the inner wall of hollow nitrogen-doped carbon (CN) materials. By changing metal precursors or polymers, we demonstrate the successful synthesis of different metal single atoms dispersed on CN materials (SA-M/CN, M = Fe, Co, Ni, Mn, FeCo, FeNi, etc.). Interestingly, the obtained SA-Fe/CN exhibits much higher catalytic activity for hydroxylation of benzene to phenol than Fe nanoparticles/CN (45% vs 5% benzene conversion). First-principle calculations further reveal that the high reactivity originates from the easier formation of activated oxygen species at the single Fe site. Our methodology provides a convenient route to prepare a variety of metal single-atom materials representing a new class of catalysts. |
| WOS关键词 | OXYGEN REDUCTION REACTION ; OXYGEN REDUCTION REACTION ; GAS SHIFT REACTION ; HYDROGEN-PEROXIDE ; CATALYSTS ; BENZENE ; PHENOL ; ELECTROCATALYSTS ; PERFORMANCE ; OXIDATION ; IRON ; GAS SHIFT REACTION ; HYDROGEN-PEROXIDE ; CATALYSTS ; BENZENE ; PHENOL ; ELECTROCATALYSTS ; PERFORMANCE ; OXIDATION ; IRON |
| WOS研究方向 | Chemistry ; Chemistry |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000408074800010 ; WOS:000408074800010 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285257]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_管理与技术支持 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhang, ML,Wang, YG,Chen, WX,et al. Metal (Hydr)oxides@Polymer Core-Shell Strategy to Metal Single-Atom Materials, Metal (Hydr)oxides@Polymer Core-Shell Strategy to Metal Single-Atom Materials[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2017, 2017,139, 139(32):10976-10979, 10976-10979. |
| APA | Zhang, ML.,Wang, YG.,Chen, WX.,Dong, JC.,Zheng, LR.,...&郑黎荣.(2017).Metal (Hydr)oxides@Polymer Core-Shell Strategy to Metal Single-Atom Materials.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,139(32),10976-10979. |
| MLA | Zhang, ML,et al."Metal (Hydr)oxides@Polymer Core-Shell Strategy to Metal Single-Atom Materials".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 139.32(2017):10976-10979. |
入库方式： OAI收割
来源：高能物理研究所
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