Dry Reforming of Methane on Ni/SBA-15 Catalysts Prepared by Citrate-Assisted Impregnation: Effect of Various pH Values of the Preparation Solution on Structure and Catalytic Properties

Duan, Shanshan; Lu, Zhonghua; Lv, Yongkang

doi:10.3390/catal16020130

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Dry Reforming of Methane on Ni/SBA-15 Catalysts Prepared by Citrate-Assisted Impregnation: Effect of Various pH Values of the Preparation Solution on Structure and Catalytic Properties

by

Shanshan Duan

¹,

Zhonghua Lu

¹ and

Yongkang Lv

^2,*

¹

School of Safety and Emergency Management, Shanxi Vocational University of Engineering Science and Technology, Jinzhong 030619, China

²

State Key Laboratory of Clean and Efficient Coal Utilization, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, China

^*

Author to whom correspondence should be addressed.

Catalysts 2026, 16(2), 130; https://doi.org/10.3390/catal16020130

Submission received: 23 October 2025 / Revised: 28 November 2025 / Accepted: 11 December 2025 / Published: 30 January 2026

(This article belongs to the Special Issue Trends and Prospects in Catalysis for Sustainable CO₂ Conversion)

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Abstract

The dry reforming of methane (DRM) is a kind of technology used for achieving resource utilization. In this paper, different Ni/SBA-15 catalysts were prepared by adjusting the pH of the impregnation solution and applying it during the DRM reaction. The relationship between the structure and catalytic performance of the catalyst was analyzed by characterization methods such as BET, XRD, H₂-TPR, H₂-TPD, XPS, TG, and Raman. The research results indicated that the dispersion of the catalyst’s active components could be regulated by changing the pH value of the impregnation solution. Among them, the Ni/SBA-15-2 catalyst exhibits good metal dispersion, and significantly enhances the activity of the catalyst. In addition, it also has strong CO₂ adsorption capacity, which improves the stability of the catalyst. At 700 °C, the conversions of CH₄ and CO₂ of the catalyst are 51% and 60%, respectively.

Keywords: DRM; metal dispersion; Ni/SBA-15 catalyst; catalytic performance; the number of active sites

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MDPI and ACS Style

Duan, S.; Lu, Z.; Lv, Y. Dry Reforming of Methane on Ni/SBA-15 Catalysts Prepared by Citrate-Assisted Impregnation: Effect of Various pH Values of the Preparation Solution on Structure and Catalytic Properties. Catalysts 2026, 16, 130. https://doi.org/10.3390/catal16020130

AMA Style

Duan S, Lu Z, Lv Y. Dry Reforming of Methane on Ni/SBA-15 Catalysts Prepared by Citrate-Assisted Impregnation: Effect of Various pH Values of the Preparation Solution on Structure and Catalytic Properties. Catalysts. 2026; 16(2):130. https://doi.org/10.3390/catal16020130

Chicago/Turabian Style

Duan, Shanshan, Zhonghua Lu, and Yongkang Lv. 2026. "Dry Reforming of Methane on Ni/SBA-15 Catalysts Prepared by Citrate-Assisted Impregnation: Effect of Various pH Values of the Preparation Solution on Structure and Catalytic Properties" Catalysts 16, no. 2: 130. https://doi.org/10.3390/catal16020130

APA Style

Duan, S., Lu, Z., & Lv, Y. (2026). Dry Reforming of Methane on Ni/SBA-15 Catalysts Prepared by Citrate-Assisted Impregnation: Effect of Various pH Values of the Preparation Solution on Structure and Catalytic Properties. Catalysts, 16(2), 130. https://doi.org/10.3390/catal16020130

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Dry Reforming of Methane on Ni/SBA-15 Catalysts Prepared by Citrate-Assisted Impregnation: Effect of Various pH Values of the Preparation Solution on Structure and Catalytic Properties

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