光热协同催化技术在能源领域的应用

发布时间：2018-04-02 03:38

本文选题：光热催化　切入点：一氧化碳　出处：《化工进展》2017年07期

【摘要】：光热催化是在光催化的基础上同时加热,或在热催化的基础上同时进行光照以达到共同催化目的的一种新型催化手段,是当前催化领域的研究热点。文章介绍了光热协同催化在能源合成领域的应用,包括光热催化CO加氢、光热催化CO_2还原、光热分解水制氢等。研究发现,光催化与热催化耦合确实能够高效驱动反应的进行,明显改善了单一光催化或单一热催化的不足。在催化CO加氢方面,引入光照能明显提高CO的转化效率,同时能够调控烃类产物分布;在催化CO_2还原方面,通过调变合适的光热反应条件,能够实现高效地、选择性地将CO_2还原为CO、CH_4或其他烃类产物;在催化H2O分解制氢方面,在温和条件下提高了产氢效率。与此同时,本文也分析了部分体系的光热协同作用机制以及现阶段研究的不足之处。最后展望了光热催化的发展前景,以期对于光热协同驱动体系的研究起到积极的促进作用。
[Abstract]:It is also based on photothermal heating catalysis photocatalysis, or based on thermal catalysis and the illumination of a new catalytic method to achieve a common catalytic purpose, is the research hotspot in the field of catalysis. This paper introduces photothermal synergistic catalytic synthesis should be used in the field of energy, including solar thermal catalytic hydrogenation of CO. Thermal catalytic reduction of CO_2, thermal decomposition of water to hydrogen. The study found that the photocatalytic and thermal catalytic coupling can effectively drive the reaction, improve the shortage of single photocatalytic or single thermal catalysis. In the catalytic hydrogenation of CO, the introduction of light can significantly improve the conversion efficiency of CO, and can control the hydrocarbon products the distribution of reduction in catalysis; CO_2, by changing the photothermal appropriate reaction conditions, to achieve efficient, selective reduction of CO_2 to CO, CH_4 or other hydrocarbons; decomposition of hydrogen in catalytic H2O, Under mild conditions to improve the hydrogen production efficiency. At the same time, this paper also analyzes the thermal part of the system synergy mechanism and the deficiency of present research. Finally, the prospect of thermal catalytic, in order to promote the research on thermal system synergy drive.

【作者单位】：内蒙古大学化学化工学院;
【基金】：国家自然科学基金(21461017) 高等学校博士学科点专项科研基金(20131501110001)项目
【分类号】：O643.36;O644.1

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