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Synergistic Doping and Intercalation: Realizing Deep Phase Modulation on MoS2 Arrays for High-Efficiency Hydrogen Evolution Reaction.
Deng, Shengjue; Luo, Mi; Ai, Changzhi; Zhang, Yan; Liu, Bo; Huang, Lei; Jiang, Zheng; Zhang, Qinghua; Gu, Lin; Lin, Shiwei; Wang, Xiuli; Yu, Lei; Wen, Jianguo; Wang, Jiaao; Pan, Guoxiang; Xia, Xinhui; Tu, Jiangping.
Afiliação
  • Deng S; State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
  • Luo M; Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201210, P. R. China.
  • Ai C; State Key Laboratory of Marine Resource Utilization, in South China Sea, Hainan University, Haikou, 570228, P. R. China.
  • Zhang Y; State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
  • Liu B; State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
  • Huang L; State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
  • Jiang Z; Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201210, P. R. China.
  • Zhang Q; Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
  • Gu L; Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
  • Lin S; State Key Laboratory of Marine Resource Utilization, in South China Sea, Hainan University, Haikou, 570228, P. R. China.
  • Wang X; State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
  • Yu L; Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL, 60439, USA.
  • Wen J; Center for Nanoscale Materials, Argonne National Laboratory, Argonne, IL, 60439, USA.
  • Wang J; School of Material Science and Engineering, University of Jinan, Jinan, 250022, China.
  • Pan G; Department of Materials Chemistry, Huzhou University, Huzhou, 313000, P. R. China.
  • Xia X; State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
  • Tu J; State Key Laboratory of Silicon Materials, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
Angew Chem Int Ed Engl ; 58(45): 16289-16296, 2019 Nov 04.
Article em En | MEDLINE | ID: mdl-31487116
A synergistic N doping plus PO4 3- intercalation strategy is used to induce high conversion (ca. 41 %) of 2H-MoS2 into 1T-MoS2 , which is much higher than single N doping (ca. 28 %) or single PO4 3- intercalation (ca. 10 %). A scattering mechanism is proposed to illustrate the synergistic phase transformation from the 2H to the 1T phase, which was confirmed by synchrotron radiation and spherical aberration TEM. To further enhance reaction kinetics, the designed (N,PO4 3- )-MoS2 nanosheets are combined with conductive vertical graphene (VG) skeleton forming binder-free arrays for high-efficiency hydrogen evolution reaction (HER). Owing to the decreased band gap, lower d-band center, and smaller hydrogen adsorption/desorption energy, the designed (N,PO4 3- )-MoS2 /VG electrode shows excellent HER performance with a lower Tafel slope and overpotential than N-MoS2 /VG, PO4 3- -MoS2 /VG counterparts, and other Mo-base catalysts in the literature.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Ano de publicação: 2019 Tipo de documento: Article
Texto completo
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PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Ano de publicação: 2019 Tipo de documento: Article