Binary trinuclear metal-oxo sub-nanomaterials for photocatalytic hydrogen and chlorine production from seawater  

作　　者：Yang Wang Litong Shi Haijun Hu Bingzhi Qian Wei Hou Hui Li Xue Liu Daliang Liu Shuyao Wu Hongwei Huang Xi-Ming Song Yu Zhang Tianyi Ma 

机构地区：[1]Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials,College of Chemistry,Institute of Clean Energy Chemistry,Liaoning University,Shenyang,China [2]School of Materials Science and Engineering,Jiujiang University,Jiujiang,China [3]Centre for Translational Atomaterials,Swinburne University of Technology,Hawthorn,Victoria,Australia [4]School of Science,RMIT University,Melbourne,VIC,Australia [5]Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes,School of Materials Science and Technology,China University of Geosciences,Beijing,China

出　　处：《SusMat》2022年第6期708-719,共12页可持续发展材料（英文）

基　　金：This work was supported by the National Natural Sci-ence Foundation of China(No.52071171);Liaoning Revitalization Talents Program-Pan Deng Scholars(XLYC1802005);Liaoning BaiQianWan Talents Program(LNBQW2018B0048);Natural Science Fund of Liaoning Province for Excellent Young Scholars(2019-YQ-04);Key ProjectofScientificResearchoftheEducationDepartment of Liaoning Province(LZD201902);Shenyang Science and Technology Project(21-108-9-04);Australian Research Council(ARC)through Future Fellowship(FT210100298);Discovery Project(DP220100603);Linkage Project(LP210200504)schemes,CSIRO Energy Centre and Kick-Start Project.

摘　　要：Owing to the need for regenerant and self-reduction problem,the hydrogen performance of sub-nano-sized trinuclear iron-oxo complexes is still far from satisfied with affordability and practicality.Herein,two binary photocatalytic systems based on trinuclear metal-oxo complexes have been first constructed and experimentally confirmed to be competent for seawater hydrogen evolution(715.4and271.9μmol of hydrogen can be found,respectively,after 48h).Notably,chloride ions act as the hole catcher and move into the gas phase in the stable form of chlorine.Similar to heterogeneous structures,homogeneous systemsnot only enhance the hydrogen performance while ensuring the stability of metal-oxo complexes,but also shorten the consumption of photogenerated carriers by dissolved impurities in the seawater.This new attempt of building pluralistic sub-nanometric systems may offer novel design strategies with noble-metal-free catalysts and low-cost candidates for traditional semiconductor materials in enhancing photocatalytic efficiency and performing chlorine evolution from seawater splitting.

关 键 词：photocatalytic hydrogen evolution seawater splitting sub-nanometric material trinuclear metal-oxo complex 

分 类 号：O64[理学—物理化学]