Microscopic evidence for the dissociation of water molecules on cleaved GaN(1100)

Shih Yu Wu, Liang Wei Lang, Pei Yang Cai, Yun Wen Chen, Yu Ling Lai, Ming Wei Lin, Yao Jane Hsu, Wei-I Lee, Jer Lai Kuo, Meng Fan Luo, Chien Cheng Kuo*

*此作品的通信作者

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

The dissociation of water molecules absorbed on a cleaved non-polar GaN(1100) surface was studied primarily with synchrotron-based photoemission spectra and density-functional-theory calculations. The adsorbed water molecules are spontaneously dissociated into hydrogen atoms and hydroxyl groups at either 300 or 130 K, which implies a negligible activation energy (<11 meV) for the dissociation. The produced H and OH were bound to the surface nitrogen and gallium on GaN(1100) respectively. These results highlight the promising applications of the non-polar GaN(1100) surface in water dissociation and hydrogen generation.

原文American English
頁(從 - 到)1261-1266
頁數6
期刊Physical Chemistry Chemical Physics
20
發行號2
DOIs
出版狀態Published - 1 1月 2018

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