Chem. J. Chinese Universities ›› 2025, Vol. 46 ›› Issue (10): 20250167.doi: 10.7503/cjcu20250167

• Physical Chemistry • Previous Articles     Next Articles

Synergistic Catalysis of Cu/TS-1 for Low-temperature Methanol Steam Reforming Reaction

LU Qing1, CHEN Xue2, LIU Yuanyuan4, WANG Fei1, TUO Yongxiao2(), ZHAO Haoyang2, YI Chenxue1, MU Taoyang2, XU Shaofei2, QIN Haotian2, FENG Xiang1(), CHEN De1,3()   

  1. 1.State Key Laboratory of Heavy Oil Processing,College of Chemistry and Chemical Engineering,China University of Petroleum(East China),Qingdao 266580,China
    2.College of New Energy,China University of Petroleum(East China),Qingdao 266580,China
    3.Department of Chemical Engineering,Norwegian University of Science and Technology,Trondheim N? 7491,Norway
    4.National Engineering Research Center for Large?scale Coal Gasification and Coal?based New Materials,Jinan 250000,China
  • Received:2025-06-18 Online:2025-10-10 Published:2025-09-03
  • Contact: TUO Yongxiao, FENG Xiang, CHEN De E-mail:yxtuo@upc.edu.cn;xiangfeng@upc.edu.cn;de.chen@ntnu.no
  • Supported by:
    the National Natural Science Foundation of China(22208374);the Natural Science Fundation of Shandong Province, China(ZR2024YQ009);the China National Petroleum Corporation(CNPC) Innovation Foundation(2022DQ02-0607)

Abstract:

Low-temperature methanol steam reforming(L-MSR) for hydrogen production is a promising approach to addressing the challenges of hydrogen energy sustainability and uneven hydrogen sources distribution. This research focuses on investigating the performance of copper-loaded titanium silicate molecular sieves(Cu/TS-1) with varying Ti coordination configurations in hydrogen production via L-MSR. Through comprehensive characterization employing X-ray diffraction(XRD), transmission electron microscope(TEM), NH3-temperature programmed desorption(TPD) and CO2-TPD, we demonstrate that the synergistic adsorption interaction between Cu and framework Ti significantly enhances both the low-temperature catalytic activity and stability. The results indicate that under atmospheric pressure at 240 ℃ with a water/methanol ratio of 2, the Cu/TS-1 catalyst exhibits a hydrogen production rate of 148.4 mmol·g-1·h-1 and its copper mass-specific activity reaches 891 mmol·g-1·h-1, representing a 1.4-fold enhancement compared to the ca. 621 mmol·g-1·h-1 of the co-precipitation synthesized Cu/ZnO catalyst reported in literature. Structural-activity relationship analysis reveals that the framework Ti in TS-1 increases the weak acidic sites, improves the Cu nanoparticles dispersion, and strengthens the interaction between Cu and TS-1 surface. Additionally, the interaction between framework Ti and Cu nanoparticles facilitates the formation of bidentate CO2 adsorption sites, optimizing the adsorption of formic acid intermediates and accelerating their decomposition, which significantly boosts low-temperature hydrogen production.

Key words: Cu-based catalyst, Hydrogen production, Molecular sieve, Nanomaterials, Interface

CLC Number: 

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