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首页> 外文期刊>Environmental Science & Technology >TiO_2 Coating Strategy for Robust Catalysis of the Metal-Organic Framework toward Energy-Efficient CO_2 Capture
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TiO_2 Coating Strategy for Robust Catalysis of the Metal-Organic Framework toward Energy-Efficient CO_2 Capture

机译:TiO_2用于节能CO_2捕获的金属有机框架的鲁棒催化的涂层策略

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摘要

High energy duty restricts the application of amine-based absorption in CO_2 capture and limits the achievement of carbon neutrality. Although regenerating the amine solvent with solid acid catalysts can increase energy efficiency, inactivation of the catalyst must be addressed. Here, we report a robust metal-organic framework (MOF)-derived hybrid solid acid catalyst (SO_4~(2-)/ZIF-67-C@TiO_2) with improved acidity for promoting amine regeneration. The TiO_2 coating effectively prevented the active components stripping from the surface of the catalyst, thus prolonging its lifespan. The well-protected Co-N_x sites and protonated groups introduced onto the TiO_2 surface increased the amount and rate of CO_2 desorption by more than 64.5 and 153%, respectively. Consequently, the energy consumption decreased by approximately 36%. The catalyzed N-C bond rupture and proton transfer mechanisms are proposed. This work provides an effective protection strategy for robust acid catalysts, thus advancing the CO_2 capture with less energy duty.
机译:高能量限制在CO_2捕获中施加基于胺的吸收,并限制了碳中立的实现。尽管用固体酸催化剂再生胺溶剂可以提高能量效率,但必须解决催化剂的灭活。在这里,我们报告了一种强大的金属 - 有机骨架(MOF)的杂化固体酸催化剂(SO_4〜(2 - )/ ZIF-67-C-C 2),其具有改进的酸度来促进胺再生。 TiO_2涂层有效地防止了从催化剂表面剥离的活性组分,从而延长其寿命。引入到TiO_2表面上的受保护的Co-N_X位点和质子化基团的含量分别增加了24.5%和153%的CO_2解吸的量和速率。因此,能量消耗减少了大约36%。提出了催化的N-C键断裂和质子转移机制。该工作为鲁棒酸催化剂提供了有效的保护策略,从而推动CO_2捕获的较少能量。

著录项

  • 来源
    《Environmental Science & Technology》 |2021年第16期|11216-11224|共9页
  • 作者单位

    MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing 102206 P. R. China Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding 071003 China;

    MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing 102206 P. R. China Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding 071003 China;

    MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing 102206 P. R. China Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding 071003 China;

    MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing 102206 P. R. China Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding 071003 China;

    MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing 102206 P. R. China Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding 071003 China;

    MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing 102206 P. R. China Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding 071003 China;

    MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing 102206 P. R. China Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding 071003 China;

    Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province College of Environment Zhejiang University of Technology Hangzhou 310014 China;

    MOE Key Laboratory of Resources and Environmental Systems Optimization College of Environmental Science and Engineering North China Electric Power University Beijing 102206 P. R. China Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and Engineering North China Electric Power University Baoding 071003 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    CO_2 capture; MEA; solid acid catalysts; MOFs; catalytic regeneration;

    机译:co_2捕获;MEA;固体酸催化剂;MOFS;催化再生;

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