journal article·2019-05-01

In Situ Formation of WO3-Based Heterojunction Photoanodes with Abundant Oxygen Vacancies via a Novel Microbattery Method

Faqi Zhan, Yang Liu, Keke Wang, Yisi Liu, Xuetao Yang, Yahui Yang, Xiaoqing Qiu, Wenzhang Li, Jie Li

ACS Applied Materials & Interfaces· Volume 11· Issue 17
Publisher page

Abstract

Non-stoichiometric ratio semiconductor materials have exhibited excellent performance in energy conversion and storage fields. However, the hydrogen treatment method that is commonly used to introduce oxygen vacancies is expensive and dangerous. In this paper, a novel microbattery method using Zn powder and Fe powder as reductant has been developed to synthesize the oxygen vacancy modified WO3–x films and oxygen-deficient heterojunction films (ZnWO4–x/WO3–x and Fe2O3–x/WO3–x) at room temperature. The as-prepared WO3–x and ZnWO4–x/WO3–x heterojunction films exhibit improved photoelectrochemical performance. It is worth noting that this microbattery method can quickly introduce oxygen vacancies into semiconductor materials, including powders and films at room temperature.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · Ga2O3 and related materials

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

Affiliations

State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China

School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

Institute of Advanced Materials, Hubei Normal University, Huangshi 415000, China

College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China

Funding

National Natural Science Foundation of China

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