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利用钴-氨基硫脲类配合物作为氧化还原催化剂光分解水制备氢气

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2015-05-10

Journal: 无机化学学报

Included Journals: CSCD、ISTIC、PKU、SCIE

Volume: 31

Issue: 5

Page Number: 975-980

ISSN: 1001-4861

Key Words: 氨基硫脲;金属钴配合物;光催化制备氢气;氮硫磷三齿配体

Abstract: 通过将磷配体与氨基硫脲结合进一步增加螯合配体的配位能力,并引入磺酸根增强其水溶性,合成了一个钴配合物Co-NSP(配体HNSP:4-[2-(2-二苯基膦-苯烯基)-氨基硫脲腙]苯甲酸),利用其氧化还原特性开展均相体系的光驱动从水中制备氢气的研究.新的NSP三齿配体能够稳定低价的金属中心,有助于提升催化剂的催化性能.利用其与荧光素所构筑的光催化体系,在电子牺牲剂三乙胺存在下显示出良好的性能,光照6h其TON(turnover number)可达2 000 mol H2每摩尔催化剂.为了研究和比较其性能特点,对这一光催化体系的荧光滴定和氧化还原性能也进行了较细致的研究.

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