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author:

Lin, Jiawei (Lin, Jiawei.) [1] | Lin, Xiaoyun (Lin, Xiaoyun.) [2] | Lu, Suwei (Lu, Suwei.) [3] | Liao, Wanru (Liao, Wanru.) [4] | Qi, Tingting (Qi, Tingting.) [5] (Scholars:齐婷婷) | Liang, Shijing (Liang, Shijing.) [6] (Scholars:梁诗景) | Zhao, Zhi-Jian (Zhao, Zhi-Jian.) [7] | Jiang, Lilong (Jiang, Lilong.) [8] (Scholars:江莉龙)

Indexed by:

EI Scopus SCIE

Abstract:

Electrocatalytic nitrogen (N2) 2 ) reduction to ammonia (NH3) 3 ) reaction (eNRR) supplies a promising alternative to the Haber-Bosch technology. However, the dissociation of N---N - -- N bond hinders its development. Herein, sulfur vacancies are introduced into FeS2 2 for promoting N2 2 activation and thus stimulating the eNRR progress. Experimental investigations and density functional theory (DFT) calculations reveal that the electrons could transfer from Fe 3d orbits to N2 2 2 pi* orbital, thus facilitating the cracking of inert N2 2 molecules. And the electron transfer is easier for those Fe atoms with S vacancies in adjacent positions. Furthermore, we find that eNRR process on the FeS2 2 surface follows the distal and alternating hybrid pathway. Also, the water molecules in the electrolyte facilitate the first hydrogenation of N2 2 (*N2 2 -> *NNH). Notably, FeS2 2 with rich sulfur vacancies exhibits an excellent NH3 3 yield rate of 67.5 mu g h- 1 mg cat.-1 , which outperforms most of the reported eNRR activities of Fe-based catalysts.

Keyword:

Density functional theory Electrocatalytic nitrogen reduction N 2 activation Sulfur defect

Community:

  • [ 1 ] [Lin, Jiawei]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] [Lu, Suwei]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Liao, Wanru]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] [Qi, Tingting]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Fujian, Peoples R China
  • [ 5 ] [Liang, Shijing]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Fujian, Peoples R China
  • [ 6 ] [Jiang, Lilong]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Fujian, Peoples R China
  • [ 7 ] [Lin, Xiaoyun]Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, Minist Educ, Tianjin 300350, Peoples R China
  • [ 8 ] [Zhao, Zhi-Jian]Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, Minist Educ, Tianjin 300350, Peoples R China

Reprint 's Address:

  • [Liang, Shijing]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Fujian, Peoples R China;;[Jiang, Lilong]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Fujian, Peoples R China;;[Zhao, Zhi-Jian]Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, Minist Educ, Tianjin 300350, Peoples R China;;

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Source :

CHEMICAL ENGINEERING SCIENCE

ISSN: 0009-2509

Year: 2024

Volume: 300

4 . 1 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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