Results 21 to 30 of about 16,978 (266)

Selective Hydrogenation of the Carbonyls in Furfural and 5-Hydroxymethylfurfural Catalyzed by PtNi Alloy Supported on SBA-15 in Aqueous Solution Under Mild Conditions

Frontiers in Chemistry, 2021
Valuable furfuryl alcohol (FFA) and 2,5-dihydroxymethylfuran (DHMF) could be produced by selective hydrogenation of biomass-derived furfural (FF) and 5-hydroxymethylfurfural (HMF) with high atom economy. In this study, SBA-15 (a kind of mesoporous silica
Ge Gao, Ge Gao, Zhicheng Jiang, Zhicheng Jiang, Changwei Hu, Changwei Hu, Changwei Hu   +6 more
doaj   +1 more source

Titania supported synergistic palladium single atoms and nanoparticles for room temperature ketone and aldehydes hydrogenation

Nature Communications, 2020
Highly efficient catalysts are demanded to realize selective hydrogenation of ketone/aldehydes to alcohols under mild conditions. Here, the authors report a TiO2 supported Pd single-atom/nanoparticles synergistic catalyst with outstanding hydrogenation ...
Long Kuai, Zheng Chen, Shoujie Liu, Erjie Kan, Nan Yu, Yiming Ren, Caihong Fang, Xingyang Li, Yadong Li, Baoyou Geng   +9 more
doaj   +1 more source

Effects of TiO2 structure and Co addition as a second metal on Ru-based catalysts supported on TiO2 for selective hydrogenation of furfural to FA

Scientific Reports, 2021
The TiO2 supported Ru-based catalysts were prepared with 1.5 wt% Ru and 0–0.8 wt% Co on various TiO2 (anatase, rutile, P-25, and sol–gel TiO2) and studied in the liquid-phase selective hydrogenation of furfural to furfuryl alcohol (FA) under mild ...
Weerachon Tolek, Natdanai Nanthasanti, Boontida Pongthawornsakun, Piyasan Praserthdam, Joongjai Panpranot   +4 more
doaj   +1 more source

Catalysts for selective hydrogenation of acetylene: A review

Materials Today Catalysis, 2023
Ethylene is a crucial industrial feedstock in the petrochemical sector. However, the presence of a small amount of acetylene impurities in ethylene products will directly affect the next application of ethylene.
Kefeng Xie, Kai Xu, Mingqiang Liu, Xiaohong Song, Shengyuan Xu, Huayan Si   +5 more
doaj   +1 more source

Hydrogenation of Biomass-Derived Levulinic Acid to Gamma- Valerolactone Using Polymer-Based Metal-Containing Catalysts

Chemical Engineering Transactions, 2017
Nowadays the development of effective catalytic systems of selective hydrogenation of levulinic acid (LA) to gamma-valerolactone (GVL) is of high importance.
L.Z. Nikoshvili, I.I. Protsenko, D.A. Abusuek, A.O. Zaykovskaya, A.V. Bykov, V. Matveeva, E. Sulman   +6 more
doaj   +1 more source

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   +1 more source

Selective hydrogenation of phenylacetylene over high-energy facets exposed nanotubular alumina supported palladium catalysts

Catalysis Communications, 2023
High-energy facets exposed nanotubular alumina as well as conventional alumina supported Pd catalysts were synthesized and applied to the selective hydrogenation of phenylacetylene.
Jiangang Lv, Di Wang, Xuefeng Guo, Weiping Ding, Weimin Yang   +4 more
doaj   +1 more source

An Efficient Continuous Flow Synthesis for the Preparation of N-Arylhydroxylamines: Via a DMAP-Mediated Hydrogenation Process

Molecules, 2023
The selective hydrogenation of nitroarenes to N-arylhydroxylamines is an important synthetic process in the chemical industry. It is commonly accomplished by using heterogeneous catalytic systems that contain inhibitors, such as DMSO.
Jianli Chen, Xinyu Lin, Feng Xu, Kejie Chai, Minna Ren, Zhiqun Yu, Weike Su, Fengfan Liu   +7 more
doaj   +1 more source

Internal lattice oxygen sites invert product selectivity in electrocatalytic alkyne hydrogenation over copper catalysts

Nature Communications
Copper-based catalysts exhibit excellent performance of electrocatalytic alkynes hydrogenation, especially for the selective alkynes hydrogenation toward alkenes.
Mengyu Li, Yimin Jiang, Wei Chen, Yucheng Huang, Yingrui Lu, Leitao Xu, Shengkai Li, Yandong Wu, Zhongcheng Xia, Ruiqi Wang, Shuangyin Wang, Yuqin Zou   +11 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source