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首页> 外文期刊>Catalysis science & technology >Efficient acceptorless dehydrogenation of hydrogen-rich N-heterocycles photocatalyzed by Ni(OH)(2)@CdSe/CdS quantum dots
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Efficient acceptorless dehydrogenation of hydrogen-rich N-heterocycles photocatalyzed by Ni(OH)(2)@CdSe/CdS quantum dots

机译：有效的acceptorless脱氢研究人员N-heterocycles photocatalyzed由倪(OH) (2) @CdSe / CdS量子点

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摘要

Hydrogen storage using liquid organic hydrogen carriers (LOHCs) is a promising hydrogen storage technology; however, the hydrogen release process typically requires a high temperature. Developing dehydrogenation technology under mild conditions is highly desirable. Herein, a new approach for photocatalytic acceptorless dehydrogenation of hydrogen-rich LOHCs using Ni(OH)(2)@CdSe/CdS QDs as the photocatalyst was demonstrated. 1,2,3,4-Tetrahydroquinoline (THQ), iso-THQ, indoline, and their derivatives were selected as hydrogen-rich substrates, which exhibit excellent dehydrogenation efficiency with the release of hydrogen photocatalyzed by Ni(OH)(2)@CdSe/CdS QDs. Up to 100% yields of hydrogen and over 90% yields of complete dehydrogenation products were obtained at ambient temperature. Isotope tracer studies indicate a stepwise pathway, beginning with the photocatalytic oxidation of the substrate to release a proton and followed by proton exchange with heavy water. This work provides a promising alternative strategy to develop highly efficient, low cost and earth-abundant photocatalysts for acceptorless dehydrogenation of hydrogen-rich LOHCs.
机译：使用液体有机氢储氢运营商(LOHCs)是一个有前途的储氢技术;通常需要较高的温度。在温和条件下脱氢技术是非常可取的。的光催化acceptorless脱氢富含氢LOHCs使用Ni (OH) (2) @CdSe量子点/ cd作为光催化剂中的应用。1、2、3,4-Tetrahydroquinoline (THQ) iso-THQ,二氢吲哚及其衍生物被选为富氢基质,表现出优秀的脱氢效率与释放氢photocatalyzed倪(OH) (2) @CdSe / cd量子点。完全脱氢产品的收益率在环境温度下获得的。研究表明一个逐步通路,开始的光催化氧化底物释放质子,紧随其后与重水质子交换。提供了一个有前途的替代策略高效、低成本和发展地球上充足的催化剂为acceptorless富氢LOHCs的脱氢。

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