文献类型：期刊文献

英文题名：Transcending catalytic limits for methane decomposition: multi-functional basalt fiber-supported catalysts with membrane synergy

作者：Li, Claudia Song, Guoqiang Lim, Kang Hui Hu, Feiyang Sunarso, Jaka Yang, Naitao Wong, Michael S. Liu, Shaomin Kawi, Sibudjing

第一作者：Li, Claudia

通信作者：Kawi, S[1];Song, GQ[2]

机构：[1]Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 119260, Singapore;[2]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China;[3]Swinburne Univ Technol, Res Ctr Sustainable Technol, Fac Engn Comp & Sci, Jalan Simpang Tiga, Kuching 93350, Sarawak, Malaysia;[4]Shandong Univ Technol, Dept Chem Engn, Zibo 255049, Peoples R China;[5]Rice Univ, Dept Chem & Biomol Engn, Houston, TX 77005 USA;[6]Great Bay Univ, Sch Sci, Dongguan 523000, Peoples R China

第一机构：Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 119260, Singapore

通信机构：corresponding author), Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 119260, Singapore;corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2024

卷号：7

期号：3

外文期刊名：ADVANCED COMPOSITES AND HYBRID MATERIALS

收录：;EI(收录号：20242316197297);Scopus(收录号：2-s2.0-85194870519);WOS:【SCI-EXPANDED(收录号:WOS:001236834800001)】；

基金：No Statement Available

语种：英文

外文关键词：Hydrocarbon decomposition; Metallic membrane; Structured reactor; Thermal catalysis

摘要：Catalytic methane (CH4) decomposition (CDM) offers a direct pathway for hydrogen (H2) gas production and valuable carbon nanotube (CNT) synthesis. However, the stability of this gas-to-solid reaction is hindered by limitations in CNT growth and reactor volume constraints. Departing beyond conventional nanopowder catalysts, we introduce basalt fiber-supported Ni/LTA catalysts that feature COx-free H2 generation and up to 3.7 times longer CDM reaction times, delivering an H2 production rate of 3.1 mol gNi-1 h-1 over 22 h at 500 degrees C, surpassing Ni/LTA nanopowder counterparts. The basalt fiber catalysts exhibit uniform and robust CNT growth, along with sustained and stable H2 generation lasting up to three times longer relative to traditional CDM catalysts that deactivate within 10 h as reported in the literature. Integration of the flexible basalt fiber catalysts into an H2-permeable LTA-Pd membrane reactor further enhances the reaction time by 36% and CH4 conversion by 40%, achieving up to 45% CH4 conversion over 27 h, surpassing expected equilibrium conversion rates. The excellent catalytic stability of the 10 wt% Ni/LTA basalt fiber catalyst is additionally showcased through multiple reduction-800 degrees C CDM reaction-CO2 regeneration cycles. This transformative study propels the development of functional catalyst materials, revolutionizing thermocatalytic processes.Graphical abstractA basalt fiber-supported LTA zeolite-based nickel catalyst advances methane decomposition, yielding COx-free hydrogen, multi-wall carbon nanotubes, and extensive reaction time.