Results 221 to 230 of about 5,219,551 (261)

2D Trimetal-organic framework derived metal carbon hybrid catalyst for urea electro-oxidation and 4-nitrophenol reduction.

Chemosphere, 2020
Because of the abundance of transition metals, their enhanced electrochemical/chemical efficiency on par with the benchmark catalysts, long-term stability, etc., the expansion of transition metal/metal oxide-based electrocatalysts for oxygen evolution ...
S. Gopi, S. Perumal, E. M. Al Olayan, Ohoud Alamri, A. Aloufi, M. Kathiresan, K. Yun   +6 more
semanticscholar   +1 more source

One-pot synthesis of highly branched Pt@Ag core-shell nanoparticles as a recyclable catalyst with dramatically boosting the catalytic performance for 4-nitrophenol reduction.

Journal of Colloid and Interface Science, 2019
Herein, highly branched Pt@Ag core-shell nanoparticles (Pt@Ag NPs) were fabricated by a facile one-pot wet-chemical approach, where poly(ethyleneimine) (PEI) served as structure-directing and capping agents.
Zhi-Suo Lv, Xiao-Yan Zhu, H. Meng, Jiu-Ju Feng, Ai-Jun Wang   +4 more
semanticscholar   +1 more source

Catalytic reduction of 4-nitrophenol by magnetically recoverable Au nanocatalyst

Journal of Hazardous Materials, 2009
A novel magnetically recoverable Au nanocatalyst was fabricated by the simple adsorption-reduction of Au(III) ions on chitosan-coated iron oxide magnetic nanocarrier. Au nanoparticles with a mean diameter of 3.14 nm were well loaded on the surface of magnetic nanocarrier because chitosan layer provided an effective driving force in the formation and ...
Yang-Chuang, Chang, Dong-Hwang, Chen
openaire   +2 more sources

Catalytic reduction of 4-nitrophenol by palladium-resin composites

Applied Catalysis A: General, 2017
Abstract Catalytic reduction of 4-nitrophenol (4-NP) by palladium-resin catalysts is promising for 4-NP detoxification, in situ regeneration of the catalysts, and recycling of the products. In this study, we examined the catalytic reduction of 4-NP by Pd 0 -based catalysts supported on three neutral resins and two anion exchange resins, using ...
Nastaran Jadbabaei, Ryan James Slobodjian, Danmeng Shuai, Huichun Zhang   +3 more
openaire   +1 more source

Polyethyleneimine-stabilized palladium nanoparticles for reduction of 4-nitrophenol

Transition Metal Chemistry, 2019
Palladium nanoparticles (Pd NPs) have been drawing great interest as catalysts for water treatment. Herein, high molecular weight polyethyleneimine (PEI) (molecular weight: 70 kDa) was used as template to stabilize Pd NPs. PEI was incubated with disodium tetrachloropalladate, followed by reduction with sodium borohydride.
Yanshuai Cui, Bo Liang, Jin Zhang, Ran Wang, Haotian Sun, Longgang Wang, Dawei Gao   +6 more
openaire   +1 more source

Catalytic Activity of Cu‐MOF Catalyst for 4‐Nitrophenol Reduction

Chemistry – An Asian Journal
Abstract Nitroaromatic compounds are widely used in various industries, including dye manufacturing, leather processing, plastics, fungicides, pesticides, insecticides, pharmaceuticals, and paper production.
Yuvaraj M. Hunge, A. A. Yadav, Sutripto Majumder, Kai Takagi, Tayyab Ali, Akira Fujishima, Chiaki Terashima   +6 more
openaire   +2 more sources

Electrochemical Reduction of M‐Nitrophenol in Buffered Aqueous Solutions

Bulletin des Sociétés Chimiques Belges, 1984
AbstractA study on the electrochemical reduction of m‐nitrophenol on a mercury electrode in buffered aqueous solutions, has been carried out, focusing on the zone of potentials corresponding to the rising portion of the wave (i/iL<0.05), whose corresponding kinetic parameters allow us to suggest a reduction mechanism for each of the pH‐ranges of 0–1,
A. M. Heras, J. L. Avila, F. Capdevila, F. García Blanco   +3 more
openaire   +1 more source

Reduction of Nitrophenols by Zinc and Ammonium Chloride in Aqueous Medium.

ChemInform, 2004
A simple reduction procedure involving zinc and ammonium chloride in aqueous medium has been employed for the reduction of nitrophenols to aminophenols.
V. Sridharan, M. Karpagavalli, S. Muthusubramanian, S. Sivasubramanian   +3 more
openaire   +1 more source

Insights into the reduction of 4-nitrophenol to 4-aminophenol on catalysts

Chemical Physics Letters, 2017
Abstract New insights for the mechanism of nitro to amino groups conversion have been revealed on both N-doped graphene and Ag nanoparticles catalysts, based on the paper assisted ultrasonic spray ionization mass spectrometry: (1) water molecules not NaBH 4 are the hydrogen source for the reduced amino groups, (2) NaBH 4 could contribute to the ...
Xiangkai Kong, Hongying Zhu, ChangLe Chen, Guangming Huang, Qianwang Chen   +4 more
openaire   +1 more source

Metal nanoparticle-embedded bacterial cellulose aerogels via swelling-induced adsorption for nitrophenol reduction.

International Journal of Biological Macromolecules, 2019
Bacterial cellulose aerogels were chosen as the substrate for supporting and dispersing metal nanoparticles (Cu and Ni). During the catalyst preparation, we found that the swelling-induced adsorption process could control the metal size and dispersion ...
Lian Song, Lian Shu, Yaquan Wang, Xiong-Fei Zhang, Zhongguo Wang, Yi Feng, Jianfeng Yao   +6 more
semanticscholar   +1 more source