Improved stability of redox enzyme layers on glassy carbon electrodes via covalent grafting

An aminophenethyl-substituted [Re(2,2’-bipyridine)(CO)3Cl] catalyst ([Re(NH2-bpy)]) was tethered to nanoporous colloid-imprinted carbon (CIC) electrode surfaces via an electrochemical oxidative grafting method. Hybrid CIC|[Re(NH2-bpy)] electrodes showed an improved stability and an increased loading per geometrical area in comparison to modified smooth glassy carbon electrodes. The catalyst also remained active upon immobilization and CO2 was selectively reduced to CO by the CIC|[Re(NH2-bpy)] electrodes in acetonitrile with a Faradaic efficiency of 92 ± 6% and a Re-based TON of approximately 900.

Download Full-text

Ethynylphenyl-Derivatized Free Base Porphyrins: Anodic Oxidation Processes and Covalent Grafting onto Glassy Carbon Electrodes

Langmuir ◽

10.1021/acs.langmuir.9b03452 ◽

2019 ◽

Vol 36 (1) ◽

pp. 96-108

Author(s):

Paul Gamm ◽

Matthew V. Sheridan ◽

Stephen J. Van Wyck ◽

Alima Meindl ◽

Mathias O. Senge ◽

...

Keyword(s):

Anodic Oxidation ◽

Glassy Carbon ◽

Carbon Electrodes ◽

Free Base ◽

Glassy Carbon Electrodes ◽

Oxidation Processes ◽

Covalent Grafting ◽

Grafting Onto

Download Full-text

Grafting of a Molecular Rhenium CO2 Reduction Catalyst onto Colloid-Imprinted Carbon

10.26434/chemrxiv.7647203 ◽

2019 ◽

Author(s):

Janina Willkomm ◽

Erwan Bertin ◽

Marwa Atwa ◽

Jian-Bin Li ◽

Viola I. Birss ◽

...

Keyword(s):

Glassy Carbon ◽

Co2 Reduction ◽

Carbon Electrodes ◽

Faradaic Efficiency ◽

Glassy Carbon Electrodes ◽

Electrode Surfaces ◽

Improved Stability

An aminophenethyl-substituted [Re(2,2’-bipyridine)(CO)3Cl] catalyst ([Re(NH2-bpy)]) was tethered to nanoporous colloid-imprinted carbon (CIC) electrode surfaces via an electrochemical oxidative grafting method. Hybrid CIC|[Re(NH2-bpy)] electrodes showed an improved stability and an increased loading per geometrical area in comparison to modified smooth glassy carbon electrodes. The catalyst also remained active upon immobilization and CO2 was selectively reduced to CO by the CIC|[Re(NH2-bpy)] electrodes in acetonitrile with a Faradaic efficiency of 92 ± 6% and a Re-based TON of approximately 900.

Download Full-text

Anodic and cathodic modification of glassy-carbon electrodes affect iodine electrochemistry

Electrochimica Acta ◽

10.1016/j.electacta.2021.138181 ◽

2021 ◽

Vol 379 ◽

pp. 138181

Author(s):

Shota Ito ◽

Masatoshi Sugimasa ◽

Yuichi Toshimitsu ◽

Akihiro Orita ◽

Masaki Kitagawa ◽

...

Keyword(s):

Glassy Carbon ◽

Carbon Electrodes ◽

Glassy Carbon Electrodes

Download Full-text

Ultrasensitive Electrochemical Determination of Phosphate in water by Hydrophilic TiO2 modified Glassy Carbon Electrodes

Analytical Methods ◽

10.1039/d0ay01854f ◽

2021 ◽

Author(s):

Yan Jin ◽

Tong QI ◽

Yuqing Ge ◽

Jin Chen ◽

Li juan Liang ◽

...

Keyword(s):

Differential Pulse Voltammetry ◽

Glassy Carbon ◽

Differential Pulse ◽

Electrochemical Determination ◽

Carbon Electrodes ◽

Glassy Carbon Electrodes ◽

Time Differential ◽

Pulse Voltammetry ◽

First Time

In this paper, ultrasensitive electrochemical determination of phosphate in water is achieved by hydrophilic TiO2 modified glassy carbon electrodes for the first time. Differential pulse voltammetry (DPV) method is proposed...

Download Full-text