Fiber Catalysts for Efficient Energy and Environmental Catalysis

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".

Deadline for manuscript submissions: 20 December 2025 | Viewed by 826

Special Issue Editors


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Guest Editor
School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
Interests: fiber catalysts; environmental catalysis; paper structured composites

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Guest Editor
State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
Interests: ceramic fibers; precursor ceramic fibers; ceramic matrices; high-temperature crystal fiber preparation

Special Issue Information

Dear Colleagues,

Fiber catalysts, including fiber-supported catalysts, nanofiber catalysts, and monolithic fiber structure catalysts (e.g., paper-type catalysts), possess notable advantages such as low density, short diffusion lengths, large geometric surface areas, and high contact efficiencies. Consequently, they have garnered significant attention for their broad applications in energy and environmental catalysis, including fuel cells, volatile organic compound (VOC) treatment, nitrogen oxide (NOx) reduction, and soot elimination. Nevertheless, to meet the practical demands of fiber catalysts in real-world applications, it is crucial to develop more efficient structure–function integrated fiber materials that fully exploit the synergistic interactions between carriers and active components. Furthermore, systematic investigation into the mechanisms underlying the stability enhancement of fiber catalysts is necessary.

Prof. Dr. Gang Yu
Dr. Yongshuai Xie
Guest Editors

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Keywords

  • fiber-structured catalysts
  • structure-function integration
  • stability enhancement
  • environmental catalysis
  • carrier-active component synergy

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Published Papers (1 paper)

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Research

14 pages, 6556 KB  
Article
Promoting Effects of Acid Treatment on Catalytic Performance of K-Sepiolite Clay Fibers for Soot Oxidation
by Haizhen Li, Wensheng Yang, Jiateng Hu, Mengjiao Niu, Shengjian Qin, Zhigang Yang and Gang Yu
Catalysts 2025, 15(10), 994; https://doi.org/10.3390/catal15100994 - 17 Oct 2025
Viewed by 722
Abstract
In this study, sepiolite clay fibers were activated through hydrochloric acid acidification at various concentrations. The effects of different acid environments on the phase structure, morphology, and physicochemical properties of the activated sepiolite fibers were studied extensively. It was found that calcite impurities [...] Read more.
In this study, sepiolite clay fibers were activated through hydrochloric acid acidification at various concentrations. The effects of different acid environments on the phase structure, morphology, and physicochemical properties of the activated sepiolite fibers were studied extensively. It was found that calcite impurities can be effectively removed when the acid concentration exceeds 1 M. Furthermore, the specific surface area of K-supported sepiolite fibers increases continuously with rising acid concentration, reaching 107.9 m2/g when the hydrochloric acid concentration is 7 M. The soot temperature-programmed oxidation (TPO) results demonstrated that K-supported sepiolite fibers acidified with 3 M HCl exhibited the highest catalytic activity, with T10 and T50 values of 323 °C and 348 °C, respectively. The 10 wt% K-supported sepiolite paper catalyst, using 3 M HCl-activated sepiolite fibers as the matrix, exhibited the lowest T50 value of 436 °C and showed excellent stability compared to all other paper catalyst samples. This study on the activation of sepiolite-based catalysts under various acidic conditions advances the development of highly active and stable mineral catalytic materials and facilitates their practical application. Full article
(This article belongs to the Special Issue Fiber Catalysts for Efficient Energy and Environmental Catalysis)
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