Results 191 to 200 of about 5,219,551 (261)

Carbonylative Reduction of Nitrophenols to Aminophenols

Collection of Czechoslovak Chemical Communications, 1995
Two- or three-component catalysts composed of (i) sulfur or sulfur compound (H2S, CS2, COS, Na2S), (ii) basic additive (triethylamine, CH3ONa, Na2S), and usually (iii) vanadium(V) compounds (e.g. NH4VO3) were found to catalyze efficiently the reaction of CO + H2O with isomeric nitrophenols to give the corresponding aminophenols.
Vendelín Macho, Milan Kučera, Milan Králik   +2 more
openaire   +1 more source

Glutaraldehyde fixation promotes palladium and gold nanoparticles formation in yeast and enhances their catalytic activity in 4-nitrophenol reduction.

Journal of Hazardous Materials, 2022
When observing biosynthesized metal nanoparticles in microorganisms, glutaraldehyde is commonly used as a fixative to prepare TEM ultra-thin sections. However, as a chemical reagent with aldehyde groups, its reduction potential on metal ions has yet to ...
Ling Tan, Xindi Liu, Yanfei Zhang
semanticscholar   +1 more source

Reduction of nitrophenols in an electrocatalytic system

Russian Journal of Applied Chemistry, 2009
Results of research into hydrogenation of o- and p-nitrophenols in an electrocatalytic system on a cathode activated with d- and s-metal catalysts are presented. The optimal conditions for o-aminophenol formation on Raney nickel were identified by the probability-determined method for the experimental design.
N. M. Ivanova, E. A. Soboleva, E. V. Kulakova, V. P. Malyshev, I. V. Kirilyus   +4 more
openaire   +1 more source

One-pot Synthesis of Pd/Azo-polymer as an Efficient Catalyst for 4-Nitrophenol Reduction and Suzuki-Miyaura Coupling Reaction.

Chemistry - An Asian Journal, 2021
The porous polymer matrix with good stability and confined microenvironment is considered as ideal support to stabilize isolated metal centers for catalysis.
Yanlin Yu, Yuzhu Gong, Binbin Cao, Haidong Liu, Xiaoli Zhang, Xu Han, Shuanglong Lu, Xueqin Cao, H. Gu   +8 more
semanticscholar   +1 more source

Salt template-assisted in situ construction of Ru nanoclusters and porous carbon: excellent catalysts toward hydrogen evolution, ammonia-borane hydrolysis, and 4-nitrophenol reduction

, 2020
Sustainable yet effective manufacture of supported metal nanoclusters (NCs) with high performance for catalytic applications is worthwhile but remains a big challenge.
Ronghua Ding, Qian Chen, Q. Luo, Lingxi Zhou, Yi Wang, Yun Zhang, Guangyin Fan   +6 more
semanticscholar   +1 more source

CeO2-supported Pt–Ag bimetallic catalysts for 4-nitrophenol reduction

Catalysis Today, 2021
The present work is focused on designing of ceria-supported Pt–Ag bimetallic catalysts for 4-nitrophenol reduction with NaBH4. The series of ceria-supported monometallic (Pt or Ag) and bimetallic Pt-Ag catalysts are prepared by wetness impregnation ...
T. Kharlamova, Margarita V. Salina, V. Svetlichnyi, M. Salaev, A. Stadnichenko, G. Mamontov   +5 more
semanticscholar   +1 more source

4-Nitrophenol Reduction: Probing the Putative Mechanism of the Model Reaction

, 2020
We report a reinterpretation of the reduction of 4-nitrophenol catalyzed by silver nanoparticles.
Jyah Strachan, Christopher Barnett, A. Masters, T. Maschmeyer   +3 more
semanticscholar   +1 more source

Nanocatalytic Assemblies for Catalytic Reduction of Nitrophenols: A Critical Review

Critical Reviews in Analytical Chemistry, 2019
Nitrophenol is common carcinogenic pollutant known for its adverse effects on human beings and aquatic life. During the last few decades, the chemical reduction of nitrophenol compounds has been widely reported as the advanced removal methodology for such hazardous dyes from aqueous reservoirs.
Muhammad Imran Din, Rida Khalid, Zaib Hussain, Tajamal Hussain, Adnan Mujahid, Jawayria Najeeb, Fatima Izhar   +6 more
openaire   +2 more sources

In situ decorated Pd NPs on chitosan-encapsulated Fe3O4/SiO2-NH2 as magnetic catalyst in Suzuki-Miyaura coupling and 4-nitrophenol reduction.

Carbohydrate Polymers, 2020
Chitosan is a linear polysaccharide and non-toxic bioactive polymer with a wide variety of applications due to its functional properties such as ease of modification, and biodegradability.
H. Veisi, T. Ozturk, B. Karmakar, Taiebeh Tamoradi, Saba Hemmati   +4 more
semanticscholar   +1 more source

Treatment of nitrophenols by cathode reduction and electro-Fenton methods

Journal of Hazardous Materials, 2006
This study deals with the degradation of various nitrophenols by cathode reduction and electro-Fenton methods. Phenols (Poh), 2-nitrophenol (2-NP), 3-nitrophenol (3-NP), 4-nitrophenol (4-NP), and 2,4-dinitrophenol (2,4-DNP) are treated and different degradation sequences are obtained.
Songhu, Yuan, Meng, Tian, Yanping, Cui, Li, Lin, Xiaohua, Lu   +4 more
openaire   +2 more sources