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Mesoporous silica supported Ni-based catalysts for methane dry reforming: A review of recent studies

机译:介孔二氧化硅负载的镍基催化剂在甲烷干重整中的应用:近期研究综述

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摘要

Dry reforming of methane (DRM) emerged as a green alternative to utilize major greenhouse gases (GHG's) and produce syngas. However, the main limitations of DRM are sintering and coking of catalyst. In recent decade the Ni-based catalysts has been meticulously studied for DRM reaction since noble metal-based catalysts can't be commercialized due to economic constraints. The catalyst support, synthesis techniques, effect of promoters can significantly affect the catalyst performance. Mesoporous silica (MS) supported catalysts emerged as a promising material due to their enhanced applications in catalysts with significantly high surface areas, thermal stability, and easy availability. Till date no separate study has been carried out focusing the MS as catalyst support for DRM. This comprehensive review high-lights the recent advances in MS supported catalysts for DRM. Further, it focuses on reaction mechanism, reaction kinetics, thermodynamics, effect of catalyst support, synthesis route and effect of promoters on DRM performance.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译:甲烷干重整 (DRM) 成为利用主要温室气体 (GHG) 和生产合成气的绿色替代品。然而,DRM的主要局限性是催化剂的烧结和结焦。近十年来,由于贵金属基催化剂由于经济限制而无法商业化,因此对镍基催化剂的DRM反应进行了细致的研究。催化剂载体、合成技术、促进剂的作用等都会显著影响催化剂的性能。介孔二氧化硅(MS)负载催化剂因其在催化剂中的应用而成为一种很有前途的材料,具有显著的高比表面积、热稳定性和易得性。迄今为止,尚未进行单独的研究,将MS作为DRM的催化剂支持。这篇综合综述强调了MS支持的DRM催化剂的最新进展。此外,还重点研究了反应机理、反应动力学、热力学、催化剂载体的影响、合成路线和促进剂对DRM性能的影响。(c) 2022 Hydrogen Energy Publications LLC.,由爱思唯尔有限公司出版。保留所有权利。

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