Revisiting strategies to improve the performance of hematite photoanodes for water photoelectrolysis

Author(s)

Souza, Flavio L. ; Rodriguez-Gutierrez, Ingrid ; Souza, Joao Batista ; Leite, Edson R.

• Document type: Journal article
• Source: Physical Chemistry Chemical Physics; v. 27, n. 2, p. 13-pg., 2024-12-11.

Abstract

Photoelectrochemical (PEC) water splitting is emerging as a sustainable approach for producing green hydrogen. The design of efficient photoanodes is the key for the step forward technological application in which morphology optimization and defect engineering play central roles. In this perspective, the intricate interplay between morphology optimization, band engineering and chemical modifications is critically discussed. First, a brief introduction of the relevant aspects of semiconductors applied in PEC devices is provided. Then, a critical analysis of the influence of morphology and chemical modifications is presented, with hematite employed as a model system. Lastly, insights into future directions and outlooks for existing challenges on the development of photoelectrochemical devices for water splitting are displayed. (AU)

• FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
• Grantee: Elson Longo da Silva
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
• FAPESP's process: 21/03321-9 - Controlling the structure of semiconductor nanoparticles: surface, defects, and properties
• Grantee: João Batista Souza Junior
• Support Opportunities: Regular Research Grants
• FAPESP's process: 17/11986-5 - Generation and storage of New Energy: bringing technological development for the country
• Grantee: Ana Flávia Nogueira
• Support Opportunities: Research Grants - Research Centers in Engineering Program