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The highly improved hydrogen evolution performance of a 0D/0D MoP-modified P-doped Mn0.5Cd0.5S photocatalyst
Dalton Transactions ( IF 4 ) Pub Date : 2022-06-14 , DOI: 10.1039/d2dt01195f
Jiaowei Yan 1 , Ying Wang 1 , Lei Shi 1
Affiliation  

In this paper, we present a MoP/P–Mn0.5Cd0.5S photocatalytic material (PMOMCS-Px). A novel catalyst can efficiently split water into hydrogen without precious metals. In the sacrificial agent environment, the HER (hydrogen evolution rate) of PMOMCS-P5 was 4368.25 μmol g−1 h−1 which was 11.4 times greater than the HER of Mn0.5Cd0.5S (383.19 μmol g−1 h−1), and its hydrogen production performance was better than that of Pt/Mn0.5Cd0.5S (2.0 wt% Pt). Furthermore, the hydrogen evolution performance of PMOMCS-P5 under pure water conditions was also examined, and the HER of PMOMCS-P5 was 209.76 μmol g−1 h−1, which was 20.4 times that of Mn0.5Cd0.5S (10.29 μmol g−1 h−1). Its characterization proved that the introduction of the co-catalyst MoP and P doping inhibited the recombination of e and h+, enhanced the reduction capacity, and reduced the hydrogen precipitation reaction overpotential of PMOMCS-Px, thus enhancing the hydrogen production performance of PMOMCS-Px. Therefore, an efficient and economical photocatalyst was prepared.

中文翻译:

0D/0D MoP改性P掺杂Mn0.5Cd0.5S光催化剂显着提高析氢性能

在本文中,我们提出了一种 MoP/P-Mn 0.5 Cd 0.5 S 光催化材料 (PMOMCS-P x )。一种新型催化剂可以在没有贵金属的情况下有效地将水分解成氢气。在牺牲剂环境下,PMOMCS-P5的HER(析氢速率)为4368.25 μmol g -1 h -1 ,是Mn 0.5 Cd 0.5 S的HER(383.19 μmol g -1 h -1)的11.4倍, 其制氢性能优于 Pt/Mn 0.5 Cd 0.5S (2.0 wt% Pt)。此外,还考察了PMOMCS-P5在纯水条件下的析氢性能,PMOMCS-P5的HER为209.76 μmol g -1 h -1,是Mn 0.5 Cd 0.5 S(10.29 μmol g )的20.4倍。 -1 h -1 )。其表征证明,助催化剂 MoP 和 P 掺杂的引入抑制了 e -和 h +的复合,增强了还原能力,降低了 PMOMCS-P x的析氢反应过电位,从而提高了产氢性能。 PMOMCS-P x. 因此,制备了一种高效且经济的光催化剂。
更新日期:2022-06-14
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