Electrocatalytic Water Oxidation at Quinone-on-Carbon: A Model System Study
文献类型：期刊论文
| 作者 | Lin, Yangming1; Wu, Kuang-Hsu4; Lu, Qing1; Gu, Qingqing1,2; Zhang, Liyun2; Zhang, Bingsen2; Su, Dangsheng2; Plodinec, Milivoj3; Schloegl, Robert1,3; Heumann, Saskia1 |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2018-11-07 |
| 卷号 | 140期号:44页码:14717-14724 |
| ISSN号 | 0002-7863 |
| DOI | 10.1021/jacs.8b07627 |
| 通讯作者 | Heumann, Saskia(saskia.heumann@cec.mpg.de) |
| 英文摘要 | Nanocarbon can promote robust and efficient electrocatalytic water oxidation through active surface oxygen moieties. The recent mechanistic understandings (e.g., active sites) of metal-free carbon catalysts in oxygen evolution reaction (OER), however, are still rife with controversies. In this work, we describe a facile protocol in species were used as model structures to investigate the explicit roles which eight kinds of aromatic molecules with designated single oxygen of each common oxygen group in OER at a molecular level. These model structures were decorated onto typical nanocarbon surfaces like onion-like carbons (OLC) or multiwalled carbon nanotubes (MWCNT) to build aromatic molecule-modified carbon systems. We show that edge (including zigzag and armchair) quinones in a conjugated pi network are the true active centers, and the roles of ether and carboxyl groups are excluded in the OER process. The plausible rate-determining step could be singled out by H/D kinetic isotope effects. The turnover frequency per C=0 (similar to 0.323 s(-1) at eta = 340 mV) in 0.1 M KOH and the optimized current density (10 mA/cm(2) at 1.58 V vs RHE) of quinone-modified carbon systems are comparable to those of promising metal-based catalysts. |
| 资助项目 | Max Planck society |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000449887800030 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | Max Planck society |
| 源URL | [http://ir.imr.ac.cn/handle/321006/130564]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Heumann, Saskia |
| 作者单位 | 1.Max Planck Inst Chem Energy Convers, Stiftstr 34-36, D-45470 Mulheim, Germany 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Max Planck Gesell, Fritz Haber Inst, Dept Inorgan Chem, Faradayweg 4-6, D-14195 Berlin, Germany 4.Univ New South Wales, Sch Chem Engn, Kensington, NSW 2052, Australia |
| 推荐引用方式 GB/T 7714 | Lin, Yangming,Wu, Kuang-Hsu,Lu, Qing,et al. Electrocatalytic Water Oxidation at Quinone-on-Carbon: A Model System Study[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2018,140(44):14717-14724. |
| APA | Lin, Yangming.,Wu, Kuang-Hsu.,Lu, Qing.,Gu, Qingqing.,Zhang, Liyun.,...&Heumann, Saskia.(2018).Electrocatalytic Water Oxidation at Quinone-on-Carbon: A Model System Study.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,140(44),14717-14724. |
| MLA | Lin, Yangming,et al."Electrocatalytic Water Oxidation at Quinone-on-Carbon: A Model System Study".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 140.44(2018):14717-14724. |
入库方式： OAI收割
来源：金属研究所
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