نتایج جستجو برای: ni doping

تعداد نتایج: 77649  

Journal: :Sains Malaysiana 2021

The visible-light response is a necessary condition for titanium dioxide (TiO2) photocatalyst to function as visible light active photocatalyst. This can be solved by investigation of the bandgaps and optimization doping levels multivalency metal-doped TiO2. In this study, pure Cu, Fe, Ni-doped TiO2 photocatalysts were prepared sol‐gel method. characterized using XRD, FTIR, FESEM, EDX, N2 physi...

Journal: :Applied Catalysis A-general 2022

Ni, Cu and Ni-Cu catalysts supported on high surface area graphite were synthesized by incipient wet impregnation. Also, the effect of doping support with alkali oxides (Li, Na K) was studied. The tested in formic acid decomposition reaction to produce hydrogen. bimetallic catalyst doped K showed best catalytic performance 100% conversion at 130 °C a 95% selectivity turnover frequency (TOF) fol...

Journal: :Physical Chemistry Chemical Physics 2021

DFT calculations on Ni3P2 terminated N2P suggest improved HER activity through cobalt and iron co-doping.

Journal: :Journal of the American Chemical Society 2003
Dana A Schwartz Nick S Norberg Quyen P Nguyen Jason M Parker Daniel R Gamelin

We report a method for the preparation of colloidal ZnO-diluted magnetic semiconductor quantum dots (DMS-QDs) by alkaline-activated hydrolysis and condensation of zinc acetate solutions in dimethyl sulfoxide (DMSO). Mechanistic studies reveal that Co(2+) and Ni(2+) dopants inhibit nucleation and growth of ZnO nanocrystals. In particular, dopants are quantitatively excluded from the critical nuc...

رضایی صامتی, مهدی, مرادی, فاطمه,

The aims of this project are to investigate the effects of Isoniazid drug adsorption on the geometrical and electrical structure of pristine and Ni-doped Gallium nitride nanotube (GaNNTs). For this purpose, 24  different configuration models are considered  for adsorbing Isoniazid on the surface of nanotube and then all considered structures are optimized by using density function theory (DFT) ...

Journal: :SN applied sciences 2021

Abstract Doping is promising strategy for the alteration of nanomaterials to enhance their optical, electrical, and catalytic activities. The development electrocatalysts oxygen reduction reactions (ORR) with excellent activity, low cost durability essential large-scale utilization energy storage devices such as batteries. In this study, MnO 2 Ni-doped nanowires were prepared through a simple c...

Journal: :Nanoscale 2018
Feiyang Yu Ya Gao Zhongling Lang Yuanyuan Ma Liying Yin Jing Du Huaqiao Tan Yonghui Wang Yangguang Li

Molybdenum carbides are considered as one type of privileged noble-metal-free electrocatalysts for hydrogen evolution reactions (HER) due to their d-band electron structure, which is similar to Pt. Especially, the electronic structure of such materials can be further adjusted by elemental doping to improve their electrocatalytic activity. Herein, we selected the Anderson-type polyoxometalates (...

Journal: :Journal of the Society of Materials Science, Japan 2020

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