Modified Nanopillar Arrays for Highly Stable and Efficient Photoelectrochemical Water Splitting

Atomically modified graphitic carbon nitride quantum dots (QDs), characterized by strongly increased reactivity and stability, are developed. These are deposited on arrays of TiO(2) nanopillars used as a photoanode for the photoelectrochemical water splitting. This photoanode shows excellent stabili...

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Detalles Bibliográficos
Autores principales: Huang, Lanyan, Meng, Qingguo, Shang, Chaoqun, Jin, Mingliang, Shui, Lingling, Zhang, Yongguang, Zhang, Zhang, Chen, Zhihong, Yuan, Mingzhe, Wang, Xin, Kempa, Krzysztof, Zhou, Guofu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2018
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6436580/
https://www.ncbi.nlm.nih.gov/pubmed/31565365
http://dx.doi.org/10.1002/gch2.201800027
Descripción
Sumario:Atomically modified graphitic carbon nitride quantum dots (QDs), characterized by strongly increased reactivity and stability, are developed. These are deposited on arrays of TiO(2) nanopillars used as a photoanode for the photoelectrochemical water splitting. This photoanode shows excellent stability, with 111 h of continuous work without any performance loss, which outperforms the best‐reported results by a factor of 10. Remarkably, our photoanode produces hydrogen even at zero bias. The excellent performance is attributed to the enhancement of photoabsorption, as well as to the promotion of charge separation between TiO(2) nanopillars and the QDs.

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