نتایج جستجو برای: ni nanoalloy

تعداد نتایج: 52540  

2017
Jianwei Su Yang Yang Guoliang Xia Jitang Chen Peng Jiang Qianwang Chen

The scalable production of hydrogen could conveniently be realized by alkaline water electrolysis. Currently, the major challenge confronting hydrogen evolution reaction (HER) is lacking inexpensive alternatives to platinum-based electrocatalysts. Here we report a high-efficient and stable electrocatalyst composed of ruthenium and cobalt bimetallic nanoalloy encapsulated in nitrogen-doped graph...

2015
Shiyao Shan Jinfang Wu Ning Kang Hannah Cronk Yinguang Zhao Wei Zhao Zakiya Skeete Pharrah Joseph Bryan Trimm Jin Luo Minhua Shao

In electrochemical energy conversion and storage, existing catalysts often contain a high percentage of noble metals such as Pt and Pd. In order to develop low-cost electrocatalysts, one of the effective strategies involves alloying noble metals with other transition metals. This strategy promises not only significant reduction of noble metals but also the tunability for enhanced catalytic acti...

Journal: :Modelling and Simulation in Materials Science and Engineering 2021

Abstract Owing to the excellent catalytic properties of Ag–Au binary nanoalloys, nanostructured Ag–Au, such as nanoparticles and nanopillars, has been under intense investigation. To achieve high accuracy in molecular simulations surface must be modeled with first-principles precision. In this work, we constructed a generalizable machine learning interatomic potential for nanoalloys based on de...

Journal: :The journal of physical chemistry. B 2005
G V Gibbs R T Downs C T Prewitt K M Rosso N L Ross D F Cox

Bond paths and the bond critical point properties (the electron density (rho) and the Hessian of rho at the bond critical points (bcp's)) have been calculated for the bonded interactions comprising the nickel sulfide minerals millerite, NiS, vaesite, NiS(2), and heazlewoodite, Ni(3)S(2), and Ni metal. The experimental Ni-S bond lengths decrease linearly as the magnitudes of the properties each ...

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