Heme bound amylin self-assembled monolayers on an Au electrode: an efficient bio-electrode for O2 reduction to H2O

2014 ◽  
Vol 50 (29) ◽  
pp. 3806 ◽  
Author(s):  
Kushal Sengupta ◽  
Sudipta Chatterjee ◽  
Soumya Mukherjee ◽  
Somdatta Ghosh Dey ◽  
Abhishek Dey
Keyword(s):  
Self Assembled Monolayers ◽  
Au Electrode ◽  
O2 Reduction ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Self-Assembled Monolayers of Molybdenum Sulfide Clusters on Au Electrode as Hydrogen Evolution Catalyst for Solar Water Splitting

Inorganics ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 79 ◽  
Author(s):  
Stephanie Spring ◽  
Pravin S. Shinde ◽  
Patricia R. Fontenot ◽  
James P. Donahue ◽  
Shanlin Pan
Keyword(s):  
Hydrogen Evolution ◽  
Photoelectron Spectroscopy ◽  
Molybdenum Sulfide ◽  
Self Assembled Monolayers ◽  
Reaction Conditions ◽  
Catalytic Current ◽  
Au Electrode ◽  
Solar Water Splitting ◽  
Assembled Monolayers ◽  
Self Assembled

Hydrogen evolution reaction (HER) activities of self-assembled monolayers (SAMs) of [Mo3S7(S2CNMe2)3] and several other MoSx molecular clusters are presented on planer Au electrode. Our study suggests that such Mo-S clusters are unstable under HER reaction conditions of a strongly acidic electrolyte. The [Mo3S7(S2CNEt2)3]I monolayer prepared from DMF showed greater stability among all the studied precursors. The X-ray photoelectron spectroscopy (XPS) analysis on a monolayer of [Mo3S7(S2CNMe2)3]I in THF assembled on Au/ITO suggested sulfur-rich composition with S:Mo ratio of 2.278. The Mo-S monolayer clusters resulting from [Mo3S7(S2CNMe2)3]I in THF showed a Tafel slope of 75.74 mV dec−1 and required a lower overpotential of 410 mV to reach a high HER catalytic current density of 100 mA cm−2 compared to the other studied precursors. Surface coverage of the Mo-S clusters on the Au surface was confirmed by cyclic voltammetry (CV) curves from K3Fe(CN)6 and anodization of Au surface. Further, the rotating ring-disk electrode (RRDE) measurements were performed for the monolayer of [Mo3S7(S2CNMe2)3]I prepared in THF to study its reaction kinetics. The HER catalytic activity of such monolayer Mo-S clusters can further be improved by controlling the sulfur vacancy.

Enhanced catalytic activity of Fe phthalocyanines linked to Au(111) via conjugated self-assembled monolayers of aromatic thiols for O2 reduction

2011 ◽  
Vol 13 (11) ◽  
pp. 1182-1185 ◽  
Author(s):  
Ingrid Ponce ◽  
J. Francisco Silva ◽  
Ruben Oñate ◽  
Marcos Caroli Rezende ◽  
Maritza A. Páez ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Self Assembled Monolayers ◽  
O2 Reduction ◽  
Aromatic Thiols ◽  
Assembled Monolayers ◽  
Self Assembled

Electrochemical behavior of self-assembled monolayers based on functionalized oligothiophenes

1998 ◽  
Vol 95 (6) ◽  
pp. 1339-1342 ◽  
Author(s):  
R. Michalitsch ◽  
A. El Kassmi ◽  
P. Lang ◽  
A. Yassar ◽  
F. Garnier
Keyword(s):  
Electrochemical Behavior ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Imaging of patterned self-assembled monolayers by scanning photoelectron microscopy

2003 ◽  
Vol 104 ◽  
pp. 459-462 ◽  
Author(s):  
R. Klauser ◽  
M. Zharnikov ◽  
I.-H. Hong ◽  
S.-C. Wang ◽  
A. Gölzhäuser ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Scanning Photoelectron Microscopy ◽  
Self Assembled

Self-assembled Monolayers Preparation and Characterization of BiFeO3 Thin Films

2009 ◽  
Vol 25 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Guo-Qiang TAN ◽  
Hai-Yang BO ◽  
Hong-Yan MIAO ◽  
Ao XIA ◽  
Zhong-Liang HE
Keyword(s):  
Thin Films ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled
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