首页|Ethanol steam reforming over Ni/ZSM-5 nanosheet for hydrogen production

Ethanol steam reforming over Ni/ZSM-5 nanosheet for hydrogen production

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Compared to reforming reactions using hydrocarbons,ethanol steam reforming(ESR)is a sustainable alternative for hydrogen(H2)production since ethanol can be produced sustainably using biomass.This work explores the catalyst design strategies for preparing the Ni supported on ZSM-5 zeolite catalysts to promote ESR.Specifically,two-dimensional ZSM-5 nanosheet and conventional ZSM-5 crystal were used as the catalyst carriers and two synthesis strategies,i.e.,in situ encapsulation and wet impregnation method,were employed to prepare the catalysts.Based on the comparative characterization of the catalysts and comparative catalytic assessments,it was found that the combination of the in situ encapsulation synthesis and the ZSM-5 nanosheet carrier was the effective strategy to develop catalysts for promoting H2 pro-duction via ESR due to the improved mass transfer(through the 2-D structure of ZSM-5 nanosheet)and formation of confined small Ni nanoparticles(resulted via the in situ encapsulation synthesis).In addition,the resulting ZSM-5 nanosheet supported Ni catalyst also showed high Ni dispersion and high accessibility to Ni sites by the reactants,being able to improve the activity and stability of catalysts and suppress metal sintering and coking during ESR at high reaction temperatures.Thus,the Ni supported on ZSM-5 nanosheet catalyst prepared by encapsulation showed the stable performance with～88％ethanol conversion and～65％H2 yield achieved during a 48-h longevity test at 550 ℃.

ZSM-5 nanosheetIn situ encapsulationNi catalystEthanol steam reformingHydrogen production

Porapak Suriya、Shanshan Xu、Shengzhe Ding、Sarayute Chansai、Yilai Jiao、Joseph Hurd、Daniel Lee、Yuxin Zhang、Christopher Hardacre、Prasert Reubroycharoen、Xiaolei Fan

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Department of Chemical Engineering,School of Engineering,The University of Manchester,Manchester M13 9PL,United Kingdom

Program of Petrochemistry and Polymer Science,Faculty of Science,Chulalongkorn University,Bangkok,10330,Thailand

Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China

Liaoning Academy of Materials,Shenyang 110167,China

Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals(CBRC),and,Department of Chemical Technology,Faculty of Science,Chulalongkorn University,Bangkok 10330,Thailand

Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute,University of Nottingham Ningbo China,Ningbo,315100,China

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European Union's Horizon research and innovation program(2020)Science Achievement Scholarship of Thailand(SAST)国家自然科学基金

87210222378407

2024

10.1016/j.cjche.2023.12.006

中国化学工程学报(英文版)
中国化工学会

中国化学工程学报(英文版)

CSTPCDEI
影响因子：0.818
ISSN：1004-9541
年,卷(期)：2024.67(3)
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