Hydrogen Evolution from Aliphatic Alcohols and 1,4-Selective Hydrogenation of NAD+ Catalyzed by a [C,N] and a [C,C] Cyclometalated Organoiridium Complex at Room Temperature in Water

2012 ◽  
Vol 134 (22) ◽  
pp. 9417-9427 ◽  
Author(s):  
Yuta Maenaka ◽  
Tomoyoshi Suenobu ◽  
Shunichi Fukuzumi
Keyword(s):  
Hydrogen Evolution ◽  
Selective Hydrogenation ◽  
Room Temperature ◽  
Aliphatic Alcohols

Amorphous Ta2O5 supported Ru as efficient electrocatalyst for selective hydrogenation of cinnamaldehyde with water as the hydrogen source

2021 ◽  
Author(s):  
Tianxing Wu ◽  
Hanqi Meng ◽  
Rui Dang
Keyword(s):  
Hydrogen Evolution ◽  
Selective Hydrogenation ◽  
Hydrogen Donor ◽  
Chemical Bonds ◽  
Electrocatalytic Hydrogenation

Electrocatalytic hydrogenation as a competing reaction for hydrogen evolution will occur in the presence of organics containing unsaturated chemical bonds using water as the hydrogen donor. Here, we propose a...

scholarly journals Room temperature silylation of alcohols catalyzed by metal organic frameworks

2017 ◽  
Vol 7 (12) ◽  
pp. 2445-2449 ◽  
Author(s):  
Amarajothi Dhakshinamoorthy ◽  
Andrea Santiago-Portillo ◽  
Patricia Concepción ◽  
José R. Herance ◽  
Sergio Navalón ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Room Temperature ◽  
Metal Organic Frameworks ◽  
Aliphatic Alcohols ◽  
Benzenedicarboxylic Acid ◽  
Metal Organic

Commercial Al(OH)(BDC) (BDC: 1,4-benzenedicarboxylic acid) is a suitable heterogeneous catalyst for the silylation of benzylic and aliphatic alcohols by hexamethyldisilazane in toluene at room temperature.

Facile room-temperature growth of nanostructured CuBi2O4 for selective electrochemical reforming and photoelectrochemical hydrogen evolution reactions

2020 ◽  
Vol 4 (2) ◽  
pp. 625-632 ◽  
Author(s):  
Chia-Yu Lin ◽  
Shao-Yu Lin ◽  
Ming-Chun Tsai ◽  
Cheng-Hsien Wu
Keyword(s):  
Hydrogen Evolution ◽  
Chemical Bath Deposition ◽  
Room Temperature ◽  
Hydrogen Generation ◽  
Temperature Growth ◽  
Hydrogen Evolution Reactions ◽  
Seed Mediated

Facile, room-temperature, and surfactant-free seed-mediated chemical bath deposition was developed to directly grow nanostructured CuBi2O4 with promising properties towards electro-reforming of glucose and PEC hydrogen generation.

ÉTUDE DE LA RÉACTION DE L'ADRÉNALINE AVEC L'ÉTHYLÈNEDIAMINE

1959 ◽  
Vol 37 (1) ◽  
pp. 231-244
Author(s):  
Guy Nadeau ◽  
Louis-Philippe Joly
Keyword(s):  
Hydrochloric Acid ◽  
Complex Formation ◽  
Beneficial Effect ◽  
Ultraviolet Light ◽  
Room Temperature ◽  
Aliphatic Alcohols ◽  
Fluorescent Material ◽  
Optimum Ph ◽  
Formation Efficiency ◽  
Influence Of Ph

The influence of pH, reagent composition, time, temperature, light, and various ions, on the reaction of fluorescence between adrenaline and ethylenediamine, has been investigated. The necessity of a preliminary oxidation to adrenochrome is confirmed. Optimum pH of reaction is situated at 10.4 ± 0.1, while extraction with isobutanol is best performed at pH 10.1 ± 0.1. A satisfactory reagent is one that contains 114.5 millimoles of ethylenediamine base per 100 ml of reacting mixture and sufficient hydrochloric acid to bring the pH to 10.3 ± 0.1. Temperature and length of reaction may be conveniently set at 50 °C and 20 to 30 minutes. Increasing the temperature significantly lowers the yield of fluorescent material; performing the reaction at room temperature increases the yield, but lengthens the procedure. Exposure to diffuse and ultraviolet light also affects the yield of fluorescence. All these factors (temperature, light, as well as excess of oxygen) appear to exert their influence in the first stages of the reaction, since the fluorescent material, once formed, is relatively stable. The beneficial effect of various ions, including Cu++, Al+++, and MoO4−−, is discussed in relation to complex formation. Efficiency of extraction with aliphatic alcohols has also been investigated; true yield from C14-adrenaline is estimated. In the light of recent findings on the structure of adrenochrome, new pathways for the reaction are suggested.

The superior performance of a Pt catalyst supported on nanoporous SiC–C composites for liquid-phase selective hydrogenation of cinnamaldehyde

RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 81211-81218 ◽  
Author(s):  
Ruihua Yao ◽  
Junrui Li ◽  
Peng Wu ◽  
Xiaohong Li
Keyword(s):  
Liquid Phase ◽  
Selective Hydrogenation ◽  
Room Temperature ◽  
Superior Performance ◽  
Pt Catalyst ◽  
Unsaturated Alcohol ◽  
Liquid Phase Hydrogenation

The Pt/SiC–C catalyst: active, selective (80% selectivity to unsaturated alcohol) and reusable for liquid-phase hydrogenation of cinnamaldehyde at room temperature.

General Synthesis of Single‐Atom Catalysts for Hydrogen Evolution Reactions and Room‐Temperature Na‐S Batteries

2020 ◽  
Vol 59 (49) ◽  
pp. 22171-22178 ◽  
Author(s):  
Wei‐Hong Lai ◽  
Heng Wang ◽  
Lirong Zheng ◽  
Quan Jiang ◽  
Zi‐Chao Yan ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Room Temperature ◽  
Single Atom ◽  
Hydrogen Evolution Reactions ◽  
General Synthesis

scholarly journals Vanadium doped few-layer ultrathin MoS2 nanosheets on reduced graphene oxide for high-performance hydrogen evolution reaction

RSC Advances ◽  
2019 ◽  
Vol 9 (39) ◽  
pp. 22232-22239 ◽  
Author(s):  
Ashwani Kumar Singh ◽  
Jagdees Prasad ◽  
Uday Pratap Azad ◽  
Ashish Kumar Singh ◽  
Rajiv Prakash ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Solvothermal Synthesis ◽  
High Performance ◽  
Room Temperature ◽  
Mos2 Nanosheets ◽  
Reduced Graphene ◽  
Ultrathin Mos2 Nanosheets

In this paper, we demonstrate a facile solvothermal synthesis of a vanadium(v) doped MoS2-rGO nanocomposites for highly efficient electrochemical hydrogen evolution reaction (HER) at room temperature.

Selective hydrogenation of cinnamaldehyde to cinnamyl alcohol over BN-supported Pt catalysts at room temperature

2019 ◽  
Vol 578 ◽  
pp. 105-115 ◽  
Author(s):  
Zhang Cao ◽  
Jiahao Bu ◽  
Zeqin Zhong ◽  
Changyong Sun ◽  
Qingsong Zhang ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Room Temperature ◽  
Pt Catalysts ◽  
Cinnamyl Alcohol ◽  
Supported Pt Catalysts
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