Results 11 to 20 of about 24,483 (311)

Refinement of selective hydrogenation catalysts guided by the concept of ‘group recognition’ [PDF]

Fundamental Research
Selective hydrogenation is crucial in the production of high-value chemicals, yet its efficient implementation remains challenging due to the absence of clear catalyst regulation strategies and in-depth insights into catalytic mechanisms.
Bing Lu, Shanjun Mao, Zhe Wang, Yong Wang   +3 more
doaj   +2 more sources

Advances in selective hydrogenation of nitrobenzene toward p-aminophenol

Sustainable Chemistry for Climate Action
p-Aminophenol is an important intermediate for dyestuff, medical and rubber. Selective hydrogenation of nitrobenzene is a green and environmentally friendly preparation process for the p-aminophenol synthesis.
Jinzhi Lu, Hao Wang, Xiao Cai, Yan Zhu
doaj   +2 more sources

Rational Design and Precise Synthesis of Single‐Atom Alloy Catalysts for the Selective Hydrogenation of Nitroarenes [PDF]

Advanced Science
Single‐atom alloys (SAAs) have gained increasing prominence in the field of selective hydrogenation reactions due to their uniform distribution of active sites and the unique host‐guest metal interactions.
Haisong Feng, Wei Liu, Lei Wang, Enze Xu, Donghui Pang, Zhen Ren, Si Wang, Shiquan Zhao, Yuan Deng, Tianyong Liu, Yusen Yang, Xin Zhang, Feng Li, Min Wei   +13 more
doaj   +2 more sources

Selective hydrogenation through phosphazide formation [PDF]

RSC Advances
The selective hydrogenation of ketones without any reaction at the azide moiety is disclosed. A key factor in the success of the reaction is the formation of phosphazides and catalyst poisoning.
Takahiro Yasuda, Suguru Yoshida
openaire   +3 more sources

Co-infiltration and dynamic formation of Pd3ZnCx intermetallic carbide by syngas boosting selective hydrogenation of acetylene [PDF]

Nature Communications
Transition metal carbide shows excellent performance in selective hydrogenation of acetylene, however, the carburization of Pd-based intermetallic compounds remains infeasible.
Huan Chen, Lulu Li, Zhi-Jian Zhao, Bing Yang, Yafeng Zhang, Xiaoyan Liu, Qingqing Gu, Zhounan Yu, Xiaofeng Yang, Jinlong Gong, Aiqin Wang, Tao Zhang   +11 more
doaj   +2 more sources

A Promising Strategy for Solvent-Regulated Selective Hydrogenation of 5-Hydroxymethylfurfural over Porous Carbon-Supported Ni-ZnO Nanoparticles [PDF]

Nano-Micro Letters
Highlights A porous carbon-supported Ni-ZnO nanoparticles catalyst (Ni-ZnO/AC) was synthesized by low-temperature coprecipitation, demonstrating exceptional catalytic activity and stability. Selective hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-
Rulu Huang, Chao Liu, Kaili Zhang, Jianchun Jiang, Ziqi Tian, Yongming Chai, Kui Wang   +6 more
doaj   +2 more sources

Comparative Study of Pd–Ni Bimetallic Catalysts Supported on UiO-66 and UiO-66-NH₂ in Selective 1,3-Butadiene Hydrogenation

Nanomaterials, 2022
Selective hydrogenation of 1,3-butadiene (BD) is regarded as the most promising route for removing BD from butene streams. Bimetallic Pd–Ni catalysts with changed Pd/Ni molar ratios and monometallic Pd catalysts were synthesized using two differently ...
Lili Liu, Lei Yu, Xiaojing Zhou, Chunling Xin, Songyuan Sun, Zhidong Liu, Jinyu Zhang, Ying Liu, Xishi Tai   +8 more
doaj   +1 more source

Selective hydrogenation in trickle-bed reactor. Experimental and modelling including partial wetting. [PDF]

, 2003
A steady state model of a trickle bed reactor is developed for the consecutive hydrogenation of 1,5,9-cyclododecatriene on a Pd/Al2O3 catalyst. Various experiments have shown that the selectivity of this reaction towards the product of interest is much ...
Wilhelm, Anne-Marie, Dietz, Adrian, Julcour-Lebigue, Carine, Delmas, Henri   +3 more
core   +1 more source

Coordination tailoring of Cu single sites on C3N4 realizes selective CO2 hydrogenation at low temperature

Nature Communications, 2021
CO2 hydrogenation has attracted intense scientific attention yet suffers from the disadvantage of poor activity and low selectivity. Here, the authors report that Cu single atom catalysts with tailored coordination environments on C3N4 serve as highly ...
Tang Yang, Xinnan Mao, Ying Zhang, Xiaoping Wu, Lu Wang, Mingyu Chu, Chih-Wen Pao, Shize Yang, Yong Xu, Xiaoqing Huang   +9 more
doaj   +1 more source

Site-Selective Hydrogenation of Electron-Poor Alkenes and Dienes Enabled by a Rh-Catalyzed Hydride Addition/Protonolysis Mechanism

, 2022
The transition metal catalyzed hydrogenation of alkenes is a well-developed technology used on a lab scale as well as on large scales in the chemical industry. Site- and chemoselective mono-hydrogenations of polarized conjugated dienes remain challenging.
Duanyang, Kong, Ansgar, Schäfer, Rylan, Lundgren, Wesley, McNutt, Mathias, Schelwies, Qiqige, Qiqige, Rocco, Paciello   +6 more
core   +1 more source