Dendrite-like cupric oxide microstructures prepared via a facile SDBS-assisted hydrothermal route

Han, Xingrong; Liao, Fan; Zhang, Yanfei; Xu, Chunju; Chen, Huiyu

doi:10.1007/s10854-017-8251-1

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…The direct and indirect band gaps of the CuO film were extracted from Tauc plots of the absorbance spectrum and are found to be 2.84 and 1.25 eV respectively (see Figure S3). The indirect gap is consistent with literature reports, and the higher energy, direct band gap is consistent with literature reports for a polycrystalline bulk CuO band gap − with some quantum confinement shift. − …”

Section: Resultssupporting

confidence: 91%

Controlling Chemical Selectivity in Electrocatalysis with Chiral CuO-Coated Electrodes

et al. 2019

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This work demonstrates the chiral-induced spin selectivity effect for inorganic copper oxide films and exploits it to enhance the chemical selectivity in electrocatalytic water splitting. Chiral CuO films are electrodeposited on a polycrystalline Au substrate, and their spin filtering effect on electrons is demonstrated using Mott polarimetry analysis of photoelectrons. CuO is known to act as an electrocatalyst for the oxygen evolution reaction; however, it also generates side products such as H2O2. We show that chiral CuO is selective for O2; H2O2 generation is strongly suppressed on chiral CuO but is present with achiral CuO. The selectivity is rationalized in terms of the electron spin-filtering properties of the chiral CuO and the spin constraints for the generation of triplet oxygen. These findings represent an important step toward the development of all-inorganic chiral materials for electron spin filtering and the creation of efficient, spin-selective (photo)electrocatalysts for water splitting.

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