Dual-phase metal nitrides as highly efficient co-catalysts for photocatalytic hydrogen evolution

被引：34

作者：

Liu, Siqi ^{[1
,2
]}

Kuang, Wandi ^{[1
]}

Meng, Xiangjian ^{[1
]}

Qi, Weiliang ^{[1
,2
]}

Adimi, Samira ^{[1
]}

Guo, Haichuan ^{[1
]}

Guo, Xuyun ^{[3
]}

Pervaiz, Erum ^{[4
]}

Zhu, Ye ^{[3
]}

Xue, Dongfeng ^{[5
]}

Yang, Minghui ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China

[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

[3] Hong Kong Polytech Univ, Dept Appl Phys, Hung Hom, Kowloon, Hong Kong, Peoples R China

[4] Natl Univ Sci & Technol NUST, Sch Chem & Mat Engn SCME, Dept Chem Engn, Sect H-12, Islamabad 44000, Pakistan

[5] Shandong Univ, State Key Lab Crystal Mat, 27 Shanda South Rd, Jinan 250100, Shandong, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2021年 / 416卷

关键词：

Transition metal nitride; Dual phase nitride; Pt-replacement; Photocatalysis; Hydrogen evolution; CHARGE SEPARATION; H-2; EVOLUTION; PLASMONIC PHOTOCATALYST; WATER; NANOCOMPOSITES; CDS; OXIDATION; HETEROSTRUCTURE; REDUCTION; CATALYST;

D O I：

10.1016/j.cej.2021.129116

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Low solar-to-fuel conversion in conventional semiconductor-based photocatalysts limits their commercial applications. Searching for highly efficient cost-effective co-catalysts is desirable for the development of artificial photosynthesis systems. In this work, we report a simple yet efficient electrostatic self-assembly process to synthesize one-dimensional Co4N-WNx-CdS composites for visible light-driven hydrogen evolution in pure water. Biphasic transition metal nitrides Co4N-WNx with high conductivity and enriched active sites leads to multi-level electrons transfer and lower over-potential for hydrogen production. Co4N-WNx-CdS composite, with optimized wt%, exhibits the highest rate of photocatalytic hydrogen evolution (14.42 mmol g(-1)h(-1)) under vacuum condition. This rate is similar to 8 times higher than that of the Pt-CdS composite (1.78 mmol g(-1)h(-1)).

引用

页数：8

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