Chinese Journal of Catalysis ›› 2021, Vol. 42 ›› Issue (8): 1332-1337.DOI: 10.1016/S1872-2067(20)63648-8

• Communications • Previous Articles     Next Articles

Odd-membered cyclic hetero-polyoxotitanate nanoclusters with high stability and photocatalytic H2 evolution activity

Ya-Jie Liua,b, Lin Genga,c, Yao Kanga, Wei-Hui Fanga,*(), Jian Zhanga,#()   

  1. aState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
    bUniversity of Chinese Academy of Sciences, Beijing 100049, China
    cCollege of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, Fujian, China
  • Received:2020-02-28 Accepted:2020-02-28 Online:2021-08-18 Published:2020-12-10
  • Contact: Wei-Hui Fang,Jian Zhang
  • About author:#. +86-591-63179450; E-mail: zhj@fjirsm.ac.cn
    *. E-mail: fwh@fjirsm.ac.cn;
  • Supported by:
    This work is supported by National Natural Science Foundation of China(21771181);This work is supported by National Natural Science Foundation of China(21935010);This work is supported by National Natural Science Foundation of China(21973096);the Youth Innovation Promotion Association CAS(2017345);This work is supported by National Natural Science Foundation of China (21771181, 21935010 and 21973096), and the Youth Innovation Promotion Association CAS (2017345).(21973096)

Abstract:

We investigated the hydrolysis of TiIV along with naturally abundant AlIII ions and reported the formation of a stable and semiconducting nanocluster. Interestingly, this compound exhibits an unusual odd-membered ring structure and also represents the largest Al-containing polyoxotitanium cluster (PTC) observed thus far. The presence of a shell of organic ligands as well as the incorporation of hetero-Al III ions endowed the nanocluster with high air, thermal, and pH stabilities. The present compound exhibited a record photocatalytic hydrogen evolution of 402.88 μmol g -1 h -1 among PTC materials. This work not only paves the way towards stable PTC materials but also provides new insights into the design of novel photocatalysts.

Key words: Polyoxotitanate, Heterometallic cluster, Nanocluster, Water-splitting H2 production