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  A Novel Heterostructure Based on RuMo Nanoalloys and N-doped Carbon as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction

Tu, K., Tranca, D., Rodriguez-Hernandez, F., Jiang, K., Huang, S., Zheng, Q., Chen, M.-X., Lu, C., Su, Y., Chen, Z., Mao, H., Yang, C., Jiang, J., Liang, H.-W., & Zhuang, X. (2020). A Novel Heterostructure Based on RuMo Nanoalloys and N-doped Carbon as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction. Advanced Materials, 32(46):. doi:10.1002/adma.202005433.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0007-DD65-F 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0007-DD66-E
資料種別: 学術論文

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 作成者:
Tu, Kejun1, 著者
Tranca, Diana1, 著者
Rodriguez-Hernandez, Fermin2, 著者           
Jiang, Kaiyue1, 著者
Huang, Senhe1, 著者
Zheng, Qi1, 著者
Chen, Ming-Xi1, 著者
Lu, Chenbao1, 著者
Su, Yuezeng1, 著者
Chen, Zhenying1, 著者
Mao, Haiyan1, 著者
Yang, Chongqing1, 著者
Jiang, Jinyang1, 著者
Liang, Hai-Wei1, 著者
Zhuang, Xiaodong1, 著者
所属:
1external, ou_persistent22              
2Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              

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 要旨: Heterostructures exhibit considerable potential in the field of energy conversion due to their excellent interfacial charge states in tuning the electronic properties of different components to promote catalytic activity. However, the rational preparation of heterostructures with highly active heterosurfaces remains a challenge because of the difficulty in component tuning, morphology control, and active site determination. Herein, a novel heterostructure based on a combination of RuMo nanoalloys and hexagonal N-doped carbon nanosheets is designed and synthesized. In this protocol, metal-containing anions and layered double hydroxides are employed to control the components and morphology of heterostructures, respectively. Accordingly, the as-made RuMo-nanoalloys-embedded hexagonal porous carbon nanosheets are promising for the hydrogen evolution reaction (HER), resulting in an extremely small overpotential (18 mV), an ultralow Tafel slope (25 mV dec(-1)), and a high turnover frequency (3.57 H(2)s(-1)) in alkaline media, outperforming current Ru-based electrocatalysts. First-principle calculations based on typical 2D N-doped carbon/RuMo nanoalloys heterostructures demonstrate that introducing N and Mo atoms into C and Ru lattices, respectively, triggers electron accumulation/depletion regions at the heterosurface and consequently reduces the energy barrier for the HER. This work presents a convenient method for rational fabrication of carbon-metal heterostructures for highly efficient electrocatalysis.

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 日付: 2020-10-152020-11-19
 出版の状態: 出版
 ページ: -
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 目次: -
 査読: -
 識別子(DOI, ISBNなど): ISI: 000577326900001
DOI: 10.1002/adma.202005433
 学位: -

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出版物 1

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出版物名: Advanced Materials
  その他 : Adv. Mater.
種別: 学術雑誌
 著者・編者:
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出版社, 出版地: Weinheim : Wiley-VCH
ページ: - 巻号: 32 (46) 通巻号: 2005433 開始・終了ページ: - 識別子(ISBN, ISSN, DOIなど): ISSN: 0935-9648
CoNE: https://pure.mpg.de/cone/journals/resource/954925570855