Optimal d-band-induced Cu3N as a cocatalyst on metal sulfides for boosting photocatalytic hydrogen evolution

Guo，Qing1,2; Liang，Fei3; Sun，Zongzhao1; Wang，Yang4; Li，Xu Bing4; Xia，Shu Guang4; Zhang，Z. Conrad2; Huang，Limin1; Wu，Li Zhu4

2020-11-21

10.1039/d0ta07916b

Journal of Materials Chemistry A   影响因子和分区

2050-7488

2050-7496

The development of highly active and non-noble cocatalysts is crucial for sustainable hydrogen (H2) generation through photocatalytic water splitting. Herein, Cu3N nanocrystals (∼15 nm) have been first used as a cocatalyst coupled with CdS for efficient photocatalytic H2 evolution with a rate of ∼4512 μmol g-1 h-1, achieving a dramatic improvement of 851-fold compared to bare CdS. Mechanistic studies revealed that the appropriate d-band center of Cu3N (-1.875 eV) with promoted photogenerated charge carrier kinetics induced its intrinsic activity, as a result of the balance between the adsorption and desorption of H species.

SCI ; EI

英语

第一 ; 通讯

Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001] ; Guangdong Provincial Key Laboratory of Catalysis[2020B121201002] ; Shenzhen Clean Energy Research Institute[CERI-KY-2019-003] ; National Key Research and Development Program of China[2017YFA0206903] ; National Natural Science Foundation of China[21861132004][52002220]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000589418400009

ROYAL SOC CHEMISTRY

20204709508015

Cadmium sulfide ; II-VI semiconductors ; Hydrogen ; Nitrogen compounds

Semiconducting Materials:712.1 ; Chemical Products Generally:804

2-s2.0-85096182745

Scopus

1.Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
2.State Key Laboratory of Catalysis,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian,116023,China
3.State Key Laboratory of Crystal Materials and Institute of Crystal Materials,Shandong University,Jinan,250100,China
4.Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing,100190,China

Guo，Qing,Liang，Fei,Sun，Zongzhao,et al. Optimal d-band-induced Cu3N as a cocatalyst on metal sulfides for boosting photocatalytic hydrogen evolution[J]. Journal of Materials Chemistry A,2020,8(43):22601-22606.

Guo，Qing.,Liang，Fei.,Sun，Zongzhao.,Wang，Yang.,Li，Xu Bing.,...&Wu，Li Zhu.(2020).Optimal d-band-induced Cu3N as a cocatalyst on metal sulfides for boosting photocatalytic hydrogen evolution.Journal of Materials Chemistry A,8(43),22601-22606.

Guo，Qing,et al."Optimal d-band-induced Cu3N as a cocatalyst on metal sulfides for boosting photocatalytic hydrogen evolution".Journal of Materials Chemistry A 8.43(2020):22601-22606.