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Title: Room-temperature pyro-catalytic hydrogen generation of 2D few-layer black phosphorene under cold-hot alternation
Authors: You, HL
Jia, YM
Wu, Z
Wang, FF
Huang, HT 
Wang, Y
Issue Date: 2018
Source: Nature communications, 23 July 2018, v. 9, 2889
Abstract: Many 2D few-layer materials show piezoelectric or pyroelectric effects due to the loss-ofinversion symmetry induced by broken structure, although they are not piezoelectric or pyroelectric in the bulk. In this work, we find that the puckered graphene-like 2D few-layer black phosphorene is pyroelectric and shows a pyro-catalytic effect, where the pyroelectric charges generated under ambient cold-hot alternation are utilized for hydrogen evolution and dye molecule decomposition. Under thermal cycling between 15 degrees C and 65 degrees C, the 2D few-layer black phosphorene shows a direct hydrogen generation of about 540 mu mol per gram of catalyst after 24 thermal cycles and about 99% decomposition of Rhodamine B dye after 5 thermal cycles. This work opens a door for the pyro-catalytic energy harvesting from the cold-hot alternations by a class of 2D few-layer materials.
Publisher: Nature Publishing Group
Journal: Nature communications 
EISSN: 2041-1723
DOI: 10.1038/s41467-018-05343-w
Rights: Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/ licenses/by/4.0/.
© The Author(s) 2018
The following publication You, H., Jia, Y., Wu, Z., Wang, F., Huang, H., & Wang, Y. (2018). Room-temperature pyro-catalytic hydrogen generation of 2D few-layer black phosphorene under cold-hot alternation. Nature Communications, 9(1), 2889 is available at https://doi.org/10.1038/s41467-018-05343-w
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