DataVXACS Applied Nano MaterialsPaper
journal article·2024-04-12

ZnCdS/CoMoOS Photocatalyst with High Electron Flux at the Ternary Interface Enhances H2 production

Qian Liu, Chao Zhang, Weiping Li, Shujun Ming, Lu Li, Zhiguo Lv

ACS Applied Nano Materials· Volume 7· Issue 7
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Source abstract

Abstract

In this paper, CoMoO x –CoMoS x –CoS x (CoMoOS) were employed as cocatalysts for the first time to fabricate a ZnCdS/CoMoOS photocatalyst featuring a high electron flux ternary interface. The photocatalytic hydrogen production rate reached 52.31 mmol h –1 g –1, which is 6.4 times that of ZnCdS (8.147 mmol h –1 g –1 ). Furthermore, owing to the presence of the CoMoOS/ZnCdS ternary interface, ZnCdS is capable of transferring electrons to CoMoOS through this interface, thus accelerating the separation of electron–hole pairs. The close contact at the ternary interface can significantly shorten the transmission path between electronically excited photosensitive sites (ZnCdS) and the water splitting active site (CoMoOS). From the calculation of DFT, CoS x and CoMoS x exhibit the optimal Gibbs free energy (−0.14 eV) and water adsorption energy (−10.30 eV), respectively, thereby deducing that CoMoO x, CoMoS x, and CoS x serve as e – auxiliary shunt, H 2 O adsorption, and H* combination functions, respectively.
Source: openalex_inverted_index · Quality: baseline

Research context

Catalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Copper-based nanomaterials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory Base for Eco-chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

Hubei Key Laboratory for Processing and Application of Catalytic Materials, School of Chemistry and Chemical Engineering, Huanggang Normal University, Huanggang 438000, China

Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an 710021, China

Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi’an 710021, China

Funding

Shaanxi University of Science and Technology · National Natural Science Foundation of China · Talent Fund for Province and Ministry Co-construction Collaborative Innovation Center of Eco-Chemical Engineering · Hubei Key Laboratory of Processing and Application of Catalytic materials · Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education Education

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