نتایج جستجو برای: nickel nanocrystals

تعداد نتایج: 44239  

Journal: :Science 2013
Matteo Cargnello Vicky V T Doan-Nguyen Thomas R Gordon Rosa E Diaz Eric A Stach Raymond J Gorte Paolo Fornasiero Christopher B Murray

Interactions between ceria (CeO2) and supported metals greatly enhance rates for a number of important reactions. However, direct relationships between structure and function in these catalysts have been difficult to extract because the samples studied either were heterogeneous or were model systems dissimilar to working catalysts. We report rate measurements on samples in which the length of t...

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Journal: :Physical chemistry chemical physics : PCCP 2015
Peng Zhao Fan Wu Coleman X Kronawitter Zhu Chen Nan Yao Bruce E Koel

Photoelectrochemical water oxidation on hematite has been extensively studied, yet the relationship between the various facets exposed, heteroatom doping, and associated electrocatalytic activity has not been adequately explored. Here, hematite nanocrystals were synthesized with continuous tuning of the aspect-ratio and fine control of the surface area ratio of the (0001) facet with respect to ...

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Journal: :Chemical communications 2009
Jianbo Liu Xiaohai Yang Kemin Wang Dong Wang Pengfei Zhang

This communication describes a facile and mild chemical etching method for resizing of CdTe nanocrystals, which provides a possible approach for tailoring the size-dependent properties of the nanocrystals.

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2013
Yinghong Li Liucheng Zhou Weifeng He Guangyu He Xuede Wang Xiangfan Nie Bo Wang Sihai Luo Yuqin Li

We investigated the strengthening mechanism of laser shock processing (LSP) at high temperatures in the K417 nickel-based alloy. Using a laser-induced shock wave, residual compressive stresses and nanocrystals with a length of 30-200 nm and a thickness of 1 μm are produced on the surface of the nickel-based alloy K417. When the K417 alloy is subjected to heat treatment at 900 °C after LSP, most...

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Journal: :Journal of Applied Physics 2006

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Journal: :Journal of Materials Chemistry A 2019

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Journal: :Applied Catalysis B: Environmental 2015

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Journal: :Asian Journal of Chemistry 2013

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Journal: :Chemistry of Materials 2021

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Journal: :Crystal Growth & Design 2008

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