Results 131 to 140 of about 404,078 (317)
, 2014 Includes bibliographical references.The Fischer-Tropsch synthesis is regarded as a stepwise polymerisation reaction between adsorbed hydrogen, carbon monoxide and monomers formed from the reaction of hydrogen and carbon monoxide. The catalytically active
Chonco, Zandile Hlengiwe
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Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading
Advanced Engineering Materials, EarlyView.This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev +2 more
wiley +1 more source
Development of catalysts for asymmetric hydrogenation [PDF]
The application of tetradentate aminoalcohol ligands to the KOtBu-catalysed hydrogenation of benzophenone has been studied. Hydrogenation was found to proceed via a transfer hydrogenation process with the ligands acting as hydrogen donors.
Jolley, Katherine E.
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Recyclable and efficient silica-supported copper hydrogenation catalyst
Communications ChemistryMany hydrogenation reactions still depend on noble-metal catalysts, which limits their broader use because of high cost and supply concerns. Developing effective catalysts from abundant materials that operate under mild reaction conditions remains a ...
Anjali Katkar +3 more
doaj +1 more source
Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions
Advanced Functional Materials, EarlyView.This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian +7 more
wiley +1 more source
Zirconium Dioxide as a Catalyst and Catalyst Support.
Journal of The Japan Petroleum Institute, 1993 酸化ジルコニウムの触媒および触媒担体としての応用の近況を概括した。まず, 酸化ジルコニウムの構造および表面性質, 特に酸塩基両機能性について記述し, ついで単体としての触媒作用の特徴をブテンの異性化反応, アルコールの脱水反応, ジエンの水素化反応, カルボン酸の水素化反応, COの水素化反応について述べ, さらに担体上への酸化ジルコニウムの分散, 添加物による高機能化, ならびに担体としての応用例として担持クロム酸化物および担持銅触媒を紹介した。
openaire +2 more sources
Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework
Advanced Functional Materials, EarlyView.The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu +13 more
wiley +1 more source
Investigation of heterogeneous catalysts for the synthesis of fine chemicals
, 2013 In order to match the more stringent environmental regulations, heterogenization of traditional homogeneous processes is one of the main challenges of the modern chemical industry. Great results have been achieved in the fields of petrochemicals and base
Giugni, Alessandra
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