M-BDC (M = Co and/ or Fe) MOFs as effective catalysts for hydrogen generation via hydrolysis of sodium borohydride - Publication - Bridge of Knowledge

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M-BDC (M = Co and/ or Fe) MOFs as effective catalysts for hydrogen generation via hydrolysis of sodium borohydride

Abstract

Mono- (Co-BDC, Fe-BDC) and bimetallic FeCo-BDC Metal-Organic Frameworks are successfully synthesized by the solvothermal method in DMF at 150 °C within 15 h and tested as catalysts for sodium borohydride hydrolysis. The materials are characterized by FTIR, PXRD, TGA, ICP-OES, H2-TPR, BET model, and SEM-EDS. The catalytic activity of these materials is studied for dehydrogenation of sodium borohydride in water at various temperatures under basic conditions. Among tested catalysts, the most promising is Co-BDC, which provides hydrogen generation with a good rate of 1886.8 mL min−1 gcat−1 at 319 K and high efficiency (77.7 %) in the presence of a base. The activation energy determined as 25.4 kJ mol−1 is lower than most cobalt-bearing catalysts for NaBH4 hydrolysis described in the literature. The catalyst can be reused at least ten times, keeping a good overall hydrogen generation yield, and thus can be considered a promising candidate for portable hydrogen fuel systems.

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Category:
Articles
Type:
artykuły w czasopismach
Published in:
APPLIED SURFACE SCIENCE no. 628,
ISSN: 0169-4332
Language:
English
Publication year:
2023
Bibliographic description:
Alaide de Oliveira M., Silva Souza E., de Jesus Santana J., Łukasik N., Stefany Lima Da Silva B., Silva Barros B., Kulesza J.: M-BDC (M = Co and/ or Fe) MOFs as effective catalysts for hydrogen generation via hydrolysis of sodium borohydride// APPLIED SURFACE SCIENCE -Vol. 628, (2023), s.157361-
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.apsusc.2023.157361
Sources of funding:
  • CAPES (88887.643078/2021-00), CNPq (141076/2019-4), FACEPE (IBPG-0477-3.03/19), CAPES/PRINT- 41/2017 (88887.194800/2018-00), PROPESQI-UFPE (23076.064214/2021-64, 23076.039362/2020-25),Gdańsk University of Technology(SB 035375)
Verified by:
Gdańsk University of Technology

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