NDLI: Tailoring transition-metal hydroxides and oxides by photon-induced reactions

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Tailoring transition-metal hydroxides and oxides by photon-induced reactions

Content Provider	United States Department of Energy Office of Scientific and Technical Information (OSTI.GOV)
Author	Niu, Kai -Yang Ye, Rong Nordlund, Dennis Doeff, Marca M. Zheng, Haimei
Organization	SLAC National Accelerator Lab., Menlo Park, CA (United States)
Organization	Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Abstract	Controlled synthesis of transition-metal hydroxides and oxides with earth-abundant elements have attracted significant interest because of their wide applications, for example as battery electrode materials or electrocatalysts for fuel generation. Here, we report the tuning of the structure of transition-metal hydroxides and oxides by controlling chemical reactions using an unfocused laser to irradiate the precursor solution. A Nd:YAG laser with wavelengths of 532 nm or 1064 nm was used. The Ni²⁺, Mn²⁺, and Co²⁺ ion-containing aqueous solution undergoes photo-induced reactions and produces hollow metal-oxide nanospheres (Ni_0.18Mn_0.45Co_0.37O_x) or core–shell metal hydroxide nanoflowers ([Ni_0.15Mn_0.15Co_0.7(OH)₂](NO₃)_0.2•H₂O), depending on the laser wavelengths. We propose two reaction pathways, either by photo-induced redox reaction or hydrolysis reaction, which are responsible for the formation of distinct nanostructures. As a result, the study of photon-induced materials growth shines light on the rational design of complex nanostructures with advanced functionalities.
Sponsorship	USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Related Links	https://www.osti.gov/biblio/1360204
Starting Page	14272
Ending Page	14276
Page Count	5
File Format	PDF
ISSN	14337851
DOI	10.1002/anie.201606775
Journal	Angewandte Chemie
Volume Number	55
Issue Number	46
Language	English
Publisher	Wiley
Publisher Date	2016-10-18
Publisher Place	United States
Access Restriction	Open
Subject Keyword	INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY MATERIALS SCIENCE ENERGY STORAGE nanostructures photochemistry reaction pathways transition-metal hydroxides vibrational excitation
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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