A nonanuclear nickel cluster-based coordination polymer for solar hydrogen production from water in open atmosphere

被引：20
作者：
Feng, Ya-Nan [1 ,2 ]
Du, Shao-Wu [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2016年 / 198卷
基金：
中国国家自然科学基金;
关键词：
Cluster-based CP; Solar-driven H-2 production; Aerotolerance; METAL-ORGANIC FRAMEWORKS; PHOTOCATALYTIC CO2 REDUCTION; VISIBLE-LIGHT; GENERATION; CATALYST; SEPARATION; COMPLEXES; EVOLUTION; SYSTEM; SITES;
D O I：
10.1016/j.apcatb.2016.05.072
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, a novel 2D double-layered metal-organic coordination polymer, [Ni-9(Hmna)(2)(mna)(8)(H2O)(10)]center dot(H2O)(11) (1) (H(2)mna=2-mercaPtonicotinic acid), based on a nonanuclear nickel cluster was synthesized to function as an efficient heterogeneous catalyst with an optimized TON of 685.4 for solar-driven H-2 production from water. Both the solar conversion and water utilization were achieved simultaneously in this photocatalytic system. Without the protection of inert atmosphere, the catalyst was still able to produce hydrogen with a TON of 93.5 in air. The influence of oxygen was studied by virtue of cyclic voltammograms (CVs) and UV-vis adsorption spectrum. The active radicals generated in the photocatalytical process were examined by in-situ electron paramagnetic resonance (EPR) experiments which provided solid evidence to support the reductive mechanism. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：404 / 410
页数：7
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