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Unveiling selective nitrate reduction to ammonia with Co3O4 nanosheets/TiO2 nanobelt heterostructure catalyst.
Fan, Xiaoya; Ma, Chaoqun; Zhao, Donglin; Deng, Zhiqin; Zhang, Longcheng; Wang, Yan; Luo, Yongsong; Zheng, Dongdong; Li, Tingshuai; Zhang, Jing; Sun, Shengjun; Lu, Qipeng; Sun, Xuping.
Afiliación
  • Fan X; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
  • Ma C; School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, Beijing, China.
  • Zhao D; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
  • Deng Z; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
  • Zhang L; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
  • Wang Y; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
  • Luo Y; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
  • Zheng D; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
  • Li T; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China.
  • Zhang J; Interdisciplinary Materials Research Center, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.
  • Sun S; College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China.
  • Lu Q; School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, Beijing, China. Electronic address: qipeng@ustb.edu.cn.
  • Sun X; Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China; College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China. Electronic address: xpsun@uestc.edu.c
J Colloid Interface Sci ; 630(Pt A): 714-720, 2023 Jan 15.
Article en En | MEDLINE | ID: mdl-36274406
ABSTRACT
Electrochemical nitrate (NO3-) reduction reaction (NO3RR) possesses two-pronged properties for sustainable ammonia (NH3) synthesis and mitigating NO3- contamination in water. However, the sluggish kinetics for the direct eight-electron NO3--to-NH3 conversion makes a formidable challenge to develop efficient electrocatalysts. Herein, we report a heterostructure of Co3O4 nanosheets decorated TiO2 nanobelt array on titanium plate (Co3O4@TiO2/TP) as an efficient NO3RR electrocatalyst. Both experimental and density theory calculations reveal that the heterostructure of Co3O4@TiO2 establishes a built-in electric field which can optimize the electron migration kinetics, as well as facilitate the adsorption and fixation of NO3- on the electrode surface, ensuring the selectivity to NH3. As expected, the designed Co3O4@TiO2/TP exhibits a remarkable Faradaic efficiency of 93.1 % and a remarkable NH3 yield as high as 875 µmol h-1 cm-2, superior to Co3O4/TP and TiO2/TP. Significantly, it also demonstrates strong electrochemical durability.
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Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2023 Tipo del documento: Article País de afiliación: China
Texto completo
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2023 Tipo del documento: Article País de afiliación: China