نتایج جستجو برای: nanocatalysts

تعداد نتایج: 927  

Journal: :Chinese Journal of Catalysis 2015

2018
Graham W. Piburn Hao Li Pranaw Kunal Graeme Henkelman Simon M. Humphrey

Noble metals are widely used as catalysts in a variety of key industrial processes. In particular, rhodium is used to catalyze the reduction of NOx to N2 and O2 in exhaust gas abatement and is also used in the conversion of bulk hydrocarbon feedstocks and syngas into more highly oxygenated hydrocarbons (e.g. , hydroformylation). 2] Palladium also plays a myriad of critical roles, including CO-t...

Journal: :Materials advances 2022

MW-assisted synthesis enhanced the catalytic properties of supported nanocatalysts, which is desirable for industrial applications. However, wide variations and complexities in MW methods need to be simplified, as demonstrated graphic.

2010
Yang Liu Chai Lor Qiang Fu David Pan Lei Ding Jie Liu Jennifer Lu

Self-assembled solution micelles prepared from polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) and polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP), have been employed as templates to synthesize copper nanocatalysts which are regarded as an excellent catalyst system for 1D nanomaterial synthesis. We have demonstrated that uniform-sized nanoparticles with diameters ranging from 1 to 15 nm have be...

2012
S. T. Hussain M. Mazhar Asima Siddiqa Hina Javid M. Siddiq

Sulfur doped titanium dioxide anatase nano-photocatalyst with different copper loadings (5, 10, 15, and 20 w/w %) was synthesized by hydrothermal method. The fabricated nanocatalysts were found to have high surface area, high aspect ratio, good surface morphology and high metals dispersion. The synthesized nanocatalysts were characterized by X-ray powder diffraction (XRD), Scanning electron mic...

2017
Guanqun Chen Ningmu Zou Bo Chen Justin B. Sambur Eric Choudhary Peng Chen

Compared with their monometallic counterparts, bimetallic nanoparticles often show enhanced catalytic activity associated with the bimetallic interface. Direct quantitation of catalytic activity at the bimetallic interface is important for understanding the enhancement mechanism, but challenging experimentally. Here using single-molecule super-resolution catalysis imaging in correlation with el...

Journal: :Angewandte Chemie 2015
Jun Wang Kai Li Hai-xia Zhong Dan Xu Zhong-li Wang Zheng Jiang Zhi-jian Wu Xin-bo Zhang

Identifying effective means to improve the electrochemical performance of oxygen-evolution catalysts represents a significant challenge in several emerging renewable energy technologies. Herein, we consider metal-nitrogen-carbon sheets which are commonly used for catalyzing the oxygen-reduction reaction (ORR), as the support to load NiO nanoparticles for the oxygen-evolution reaction (OER). FeN...

Journal: :Applied Nanoscience 2021

Designing and building an ideal catalyst for organic reactions is needed to increase the efficiency, reaction conditions, reduce its environmental impacts. The growth of nanotechnology realized in production various nano-level catalysts different applications. as-synthesized nanocatalysts are easily manipulated a desired shape size with high surface area volume ratio, which their critical prope...

Journal: :E3S web of conferences 2023

This study presents an experimentally identified derivatogram of bentonite from the Navbahor mine, texture bentonite, physical and chemical characteristics, composition, their analysis retaining substance used in preparation nanocatalysts based on Zolgel technology.

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