期刊
COATINGS
卷 11, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/coatings11080931
关键词
TiO2 nanotubes; water splitting; photoelectrochemistry; electrochemistry; materials modification
资金
- University of Virginia through the MAXNET Energy partnership
This article discusses the use of solar energy to generate electricity and synthesize chemical fuels. It focuses on the preparation and modification of titania nanotubes for water splitting to produce hydrogen.
Electromagnetic light from the Sun is the largest source, and the cleanest energy available to us; extensive efforts have been dedicated to developing science and engineering solutions in order to avoid the use of fossil fuels. Solar energy transforms photons into electricity via the photovoltaic effect, generating about 20 GW of energy in the USA in 2020, sufficient to power about 17 million households. However, sunlight is erratic, and technologies to store electric energy storage are unwieldy and relatively expensive. A better solution to store energy and to deliver this energy on demand is storage in chemical bonds: synthesizing fuels such as H-2, methane, ethanol, and other chemical species. In this review paper we focus on titania (TiO2) nanotubes grown through electrochemical anodization and various modifications made to them to enhance conversion efficiency; these semiconductors will be used to implement the synthesis of H-2 through water splitting. This document reviews selected research efforts on TiO2 that are ongoing in our group in the context of the current efforts worldwide. In addition, this manuscript is enriched by discussing the latest novelties in this field.
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