Investigating the beneficial effects of a WO₃ seed layer on the mechanical and photoelectrochemical stability of WO₃|BiVO₄|NiFeOOH photoanodes under operational conditions.

IF 2.3 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

MRS Communications Pub Date : 2025-01-01 Epub Date: 2025-08-18 DOI:10.1557/s43579-025-00788-9

George H Creasey, Andreas Kafizas, Anna Hankin

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引用次数: 0

Abstract

Scalable and durable photoelectrodes are essential for technological breakthroughs in photoelectrochemical systems, yet the fragility of nanostructured photocatalyst materials in industrially relevant operating conditions is rarely explored. Herein, we advance understanding of the importance of morphology and temperature on stability and performance of nanostructured WO₃|BiVO₄|NiFeOOH photoanodes. The integration of a planar WO₃ seed layer beneath nanostructured WO₃, improved mechanical stability at 40°C with flowing electrolyte approximately twofold compared with materials where a seed layer was not integrated. This work provides a pathway through which robust photoelectrode systems can be engineered to enable the advancement of up-scaled photoelectrochemical water splitting.

Graphical abstract:

Supplementary information: The online version contains supplementary material available at 10.1557/s43579-025-00788-9.

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在工作条件下，研究WO3种子层对WO3|BiVO4|NiFeOOH光阳极机械和光电化学稳定性的有利影响。

可扩展和耐用的光电极对于光电化学系统的技术突破至关重要，然而纳米结构光催化剂材料在工业相关操作条件下的脆弱性却很少被探索。在此，我们进一步了解了形貌和温度对纳米结构WO3|BiVO4|NiFeOOH光阳极的稳定性和性能的重要性。在纳米结构的WO3下面集成了平面WO3种子层，与没有集成种子层的材料相比，在40°C下流动电解质下的机械稳定性提高了大约两倍。这项工作提供了一条途径，通过该途径可以设计健壮的光电极系统，以实现大规模光电化学水分解的进步。图片摘要：补充信息：在线版本包含补充资料，可在10.1557/s43579-025-00788-9获得。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

2.60

自引率

10.50%

发文量

166

审稿时长

>12 weeks

期刊介绍： MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.