Hydrogen Production Performance and Reaction Mechanism of Methanol Steam Reforming over Porous Sphere-supported Catalysts

doi:10.7503/cjcu20260087

Chem. J. Chinese Universities ›› 2026, Vol. 47 ›› Issue (9): 20260087.doi: 10.7503/cjcu20260087

• Physical Chemistry • Previous Articles Next Articles

Hydrogen Production Performance and Reaction Mechanism of Methanol Steam Reforming over Porous Sphere-supported Catalysts

HU Guangkai¹(), ZHANG Yingchun²(), LIU Mengjiao³, ZHANG Xin⁴(), ZHANG Weihua¹, SUN Zhimin¹, YU Bin³, HUANG Tao³, LI Yongxiang¹, YU Hao³()

^1.School of Mechanical Engineering，Guizhou University of Engineering Science，Bijie 551700，China
^2.School of Chemistry and Chemical Engineering，Shanxi Datong University，Datong 037009，China
^3.State Key Laboratory of Advanced Fiber Materials，College of Materials Science and Engineering，Donghua University，Shanghai 201620，China
^4.National Key Laboratory of Advanced Micro and Nano Manufacture Technology，Key Laboratory of Polymer Chemistry and Physics of Ministry of Education，School of Materials Science and Engineering，Peking University，Beijing 100871，China

Received:2026-02-27 Online:2026-09-10 Published:2026-05-14
Contact: HU Guangkai E-mail:hugkai@163.com;zhangyc@sxdtdx.edu.cn;xin.zhang@pku.edu.cn;yh@dhu.edu.cn
Supported by:
the Guizhou Provincial Basic Research Program, China(No.Qiankehe Foundation [2025] Youth 270), the Bijie City Science and Technology Project of China(BKLH[2025]128， BKLH[2025]127);the Science and Technology of Bijie City, China(Nos.BKLH[2023]9, BKLH[2023]43 and the Natural Science Research Project of Guizhou Higher Education Institutions of China(QJJ[2023]047)

Abstract

Abstract:

A "top-down" design concept was adopted in this paper. herein， a porous carbon sphere-supported catalyst（Cu-Zn/CS） was fabricated by means of a wet spinning technique and a competitive impregnation adsorption method and applied for the hydrogen（H₂） production via methanol steam reforming（MSR） reaction. Taking commercial Al₂O₃ as the comparative support， the morphological characteristics， crystal phase structure， physicochemical properties， catalytic performance， and reaction mechanism of Cu-Zn/Al₂O₃ and Cu-Zn/CS were compared and analyzed through a series of complementary characterizations and tests. The characterization results showed that the constructed Cu-Zn/CS had abundant multi-morphological and multi-scale pores and craquelure structures， which not only provided the necessary spatial foundation for the multiscale anchoring of active substances but also increased the contact probability between active sites and reactants during the reactions. Catalytic performance showed that， compared with Cu-Zn/Al₂O₃， the CO selectivity of Cu-Zn/CS was reduced by one order of magnitude， the H₂ selectivity was nearly doubled， and the high-temperature catalytic activity was improved under the condition of complete methanol conversion. In addition， in⁃situ DRIFTS experiments indicated that at high reaction temperatures， gaseous reactants on the surface of Cu-Zn/Al₂O₃ not only involved the main reaction of methanol catalytic conversion to CO₂ and H₂ but also concerned the side reaction of generating CO. On the surface of Cu-Zn/CS， the main reaction occurs， that is， the reaction path can be described as CH₃OH+H₂O→^*OCH₃+^*OH→^*HCHO→^*CHOO→^*CO₂+^*H₂.

Key words: Finger-shaped pore, Craquelure, Competitive adsorption, Methanol steam reforming, Reaction mechanism

CLC Number:

O643.3

TrendMD:

HU Guangkai, ZHANG Yingchun, LIU Mengjiao, ZHANG Xin, ZHANG Weihua, SUN Zhimin, YU Bin, HUANG Tao, LI Yongxiang, YU Hao. Hydrogen Production Performance and Reaction Mechanism of Methanol Steam Reforming over Porous Sphere-supported Catalysts[J]. Chem. J. Chinese Universities, 2026, 47(9): 20260087.

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References 19

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Hydrogen Production Performance and Reaction Mechanism of Methanol Steam Reforming over Porous Sphere-supported Catalysts

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