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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Sunlight-driven water splitting using hematite nanorod photoelectrodes

Full text
Author(s):
Souza, Flavio L.
Total Authors: 1
Document type: Journal article
Source: Anais da Academia Brasileira de Ciências; v. 90, n. 1, 1, p. 745-762, 2018.
Web of Science Citations: 0
Abstract

The efficiency of nanostructures for photoelectrochemical water-splitting is fundamentally governed by the capability of the surface to sustain the reaction without electron trapping or recombination by photogenerated holes. This brief review will summarize the latest progress on hematite, designed with columnar morphology via chemical synthesis, for photoelectrochemical cell application. The columnar morphology efficiently minimizes the number of defects, grain boundaries, and surface traps normally present on the planar morphology. The major drawback related to hole diffusion through the solid/liquid interface was addressed by using high annealing temperature combined with dopant addition. A critical view and depth of understanding of these two parameters were discussed focusing on the molecular oxygen evolution mechanism from the sunlight-driven water oxidation reaction. (AU)

FAPESP's process: 16/02157-2 - Understanding the hematite nanostructured surface performing water adsorption microcalorimetry
Grantee:Flavio Leandro de Souza
Support type: Scholarships abroad - Research
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 11/19924-2 - Study and development of advanced novel materials: electronic, magnetic and nanostructured: an interdisciplinary approach
Grantee:Carlos Rettori
Support type: Research Projects - Thematic Grants