Ru doping induces the construction of the unique core-shell microflower self-supporting electrocatalyst for highly efficient overall water splitting

2021 ◽  
Author(s):  
Lei Ye ◽  
Yeqing Zhang ◽  
Buwen Guo ◽  
Duanlin Cao ◽  
Yaqiong Gong
Keyword(s):  
Electron Transfer ◽  
Hydrogen Evolution Reaction ◽  
Transfer Process ◽  
Energy Barrier ◽  
Core Shell ◽  
Practical Application ◽  
Reaction Energy ◽  
Electron Transfer Process ◽  
Ru Doping ◽  
Unique Core

Since the large reaction energy barrier caused by the multi-step electron transfer process of the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) gravely restricts the practical application of...

Graphene-wrapped Bi2O2CO3 core–shell structures with enhanced quantum efficiency profit from an ultrafast electron transfer process

2014 ◽  
Vol 2 (22) ◽  
pp. 8273-8280 ◽  
Author(s):  
Yalei Zhang ◽  
Deyi Li ◽  
Yonggang Zhang ◽  
Xuefei Zhou ◽  
Sujin Guo ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Quantum Efficiency ◽  
Transfer Process ◽  
Contact Area ◽  
Shell Structures ◽  
Core Shell ◽  
Electron Transfer Process ◽  
Ultrafast Electron Transfer

Graphene (GR)-wrapped rose-like Bi2O2CO3 (WBGR) core–shell structures are synthesized to maximize their contact area and quantum efficiency.

Thionine–graphene oxide covalent hybrid and its interaction with light

2017 ◽  
Vol 19 (22) ◽  
pp. 14412-14423 ◽  
Author(s):  
Ewelina Krzyszkowska ◽  
Justyna Walkowiak-Kulikowska ◽  
Sven Stienen ◽  
Aleksandra Wojcik
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Excited State ◽  
Transfer Process ◽  
Singlet Excited State ◽  
Functionalized Graphene ◽  
Electron Transfer Process ◽  
Functionalized Graphene Oxide ◽  
Back Electron Transfer

Quenching of the thionine singlet excited state in covalently functionalized graphene oxide with an efficient back electron transfer process.

scholarly journals Electrokinetic and Impedimetric Dynamics of FeCo-Nanoparticles on Glassy Carbon Electrode

Nano Hybrids ◽  
2013 ◽  
Vol 3 ◽  
pp. 1-23 ◽  
Author(s):  
Chinwe O. Ikpo ◽  
Njagi Njomo ◽  
Kenneth I. Ozoemena ◽  
Tesfaye Waryo ◽  
Rasaq A. Olowu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Transfer Process ◽  
Dimethyl Carbonate ◽  
Electrochemical Impedance ◽  
Ethylene Carbonate ◽  
Carbon Electrode ◽  
Electron Transfer Process ◽  
Feco Nanoparticles

The electrochemical dynamics of a film of FeCo nanoparticles were studied on a glassy carbon electrode (GCE). The film was found to be electroactive in 1 M LiClO4 containing 1:1 v/v ethylene carbonate dimethyl carbonate electrolyte system. Cyclic voltammetric experiments revealed a diffusion-controlled electron transfer process on the GCE/FeCo electrode surface. Further interrogation on the electrochemical properties of the FeCo nanoelectrode in an oxygen saturated 1 M LiClO4 containing 1:1 v/v ethylene-carbonate-dimethyl carbonate revealed that the nanoelectrode showed good response towards the electro-catalytic reduction of molecular oxygen with a Tafel slope of about 120 mV which is close to the theoretical 118 mV for a single electron transfer process in the rate limiting step; and a transfer coefficient (α) of 0.49. The heterogeneous rate constant of electron transfer (ket), exchange current density (io) and time constant (τ) were calculated from data obtained from electrochemical impedance spectroscopy and found to have values of 2.3 x 10-5 cm s-1, 1.6 x 10-4 A cm-2 and 2.4 x 10-4 s rad-1, respectively.

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