scholarly journals Immobilisation of water-oxidising amphiphilic ruthenium complexes on unmodified silica gel

RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5739-5744 ◽  
Author(s):  
A. Králík ◽  
M. Hansen ◽  
B. König
Keyword(s):  
Silica Gel ◽  
Water Oxidation ◽  
Heterogeneous System ◽  
Ruthenium Complexes ◽  
Unmodified Silica ◽  
Chemical Water

Amphiphilic ruthenium complexes immobilised on bare silica gel are an easily prepared heterogeneous system for photocatalytic and chemical water oxidation.

Water Oxidation by Single-Site Ruthenium Complexes: Using Ligands as Redox and Proton Transfer Mediators

2012 ◽  
Vol 124 (46) ◽  
pp. 11757-11761 ◽  
Author(s):  
Markus D. Kärkäs ◽  
Torbjörn Åkermark ◽  
Eric V. Johnston ◽  
Shams R. Karim ◽  
Tanja M. Laine ◽  
...  
Keyword(s):  
Proton Transfer ◽  
Water Oxidation ◽  
Ruthenium Complexes ◽  
Single Site

Efficient Electrochemical Water Oxidation Mediated by Pyridylpyrrole-Carboxylate Ruthenium Complexes

2021 ◽  
Author(s):  
Guo Chen ◽  
Ze-Wen Chen ◽  
Yuan-Mei Wang ◽  
Piao He ◽  
Chao Liu ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Ruthenium Complexes

Direct Reaction of Silica Gel with Butyllithium

2007 ◽  
Vol 2007 (9) ◽  
pp. 538-540
Author(s):  
Robert D. Guthrie
Keyword(s):  
Silica Gel ◽  
Silica Surface ◽  
Cold Water ◽  
Polar Compounds ◽  
Chromatographic Retention ◽  
Direct Reaction ◽  
Modified Silica Gel ◽  
Surface Areas ◽  
Butyl Group ◽  
Unmodified Silica

Silica gel with a variety of surface areas is found to react directly (no SOCl2 treatment required) with butyllithium to give a product with butyl groups attached. The extent of butyl group incorporation depends on available silica surface. With dehydrated 230–400 mesh silica gel, 7.4 mmoles of BuLi per g in pentane added in hexane gave silica with 2.5 mmoles of butyl groups per g provided that the silica gel was washed three times with cold water. It was found that water washing removes some unbutylated silicate increasing the apparent butyl group incorporation. The butyl-modified silica gel showed no chromatographic retention of 3-aminoquinoline in 50:50 hexane: dichloromethane or of thymol in hexane in contrast to unmodified silica gel which is known to strongly retain polar compounds, particularly basic ones. This contrast is demonstrated.

Photochemical, Electrochemical, and Photoelectrochemical Water Oxidation Catalyzed by Water-Soluble Mononuclear Ruthenium Complexes

2014 ◽  
Vol 20 (43) ◽  
pp. 13957-13964 ◽  
Author(s):  
Ting-Ting Li ◽  
Wei-Liang Zhao ◽  
Yong Chen ◽  
Fu-Min Li ◽  
Chuan-Jun Wang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Ruthenium Complexes ◽  
Water Soluble ◽  
Photoelectrochemical Water Oxidation

Improved chemical water oxidation with Zn in the tetrahedral site of spinel-type ZnCo2O4 nanostructure

2020 ◽  
Vol 15 ◽  
pp. 100226 ◽  
Author(s):  
B. Chakraborty ◽  
A. Indra ◽  
P.V. Menezes ◽  
M. Driess ◽  
P.W. Menezes
Keyword(s):  
Water Oxidation ◽  
Tetrahedral Site ◽  
Spinel Type ◽  
Chemical Water

Functional carbon nitride materials for water oxidation: from heteroatom doping to interface engineering

Nanoscale ◽  
2020 ◽  
Vol 12 (13) ◽  
pp. 6937-6952 ◽  
Author(s):  
Huayang Zhang ◽  
Wenjie Tian ◽  
Xiaoguang Duan ◽  
Hongqi Sun ◽  
Yonglong Shen ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Carbon Nitride ◽  
Interface Engineering ◽  
Intrinsic Structure ◽  
Heteroatom Doping ◽  
Structure Activity Relationships ◽  
Structure Activity ◽  
Polymeric Carbon ◽  
Chemical Water ◽  
Carbon Nitride Materials

Strategies for modifying polymeric carbon nitrides and their intrinsic structure–activity relationships for photo-, electro-, and photoelectro-chemical water oxidation are discussed.

scholarly journals Water Oxidation by Ruthenium Complexes Incorporating Multifunctional Bipyridyl Diphosphonate Ligands

2016 ◽  
Vol 55 (28) ◽  
pp. 8067-8071 ◽  
Author(s):  
Yan Xie ◽  
David W. Shaffer ◽  
Anna Lewandowska-Andralojc ◽  
David J. Szalda ◽  
Javier J. Concepcion
Keyword(s):  
Water Oxidation ◽  
Ruthenium Complexes

Highly efficient and robust molecular water oxidation catalysts based on ruthenium complexes

2014 ◽  
Vol 50 (85) ◽  
pp. 12947-12950 ◽  
Author(s):  
Lei Wang ◽  
Lele Duan ◽  
Ying Wang ◽  
Mårten S. G. Ahlquist ◽  
Licheng Sun
Keyword(s):  
Catalytic Activity ◽  
Dicarboxylic Acid ◽  
Water Oxidation ◽  
Ruthenium Complexes ◽  
Molecular Water ◽  
Oxidation Catalysts ◽  
Turnover Number ◽  
High Turnover ◽  
Molecular Catalyst ◽  
Highly Efficient

The molecular catalyst Ru(bda)L2 (H2bda = 2,2′-bipyridine-6,6′-dicarboxylic acid, L = 6-bromophthalazine) shows excellent catalytic activity for water oxidation. By using Ce(NH4)2(NO3)6 as an oxidant, the catalyst reached a high turnover number TON = 100 000 in 3 hours.

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