TY  - JOUR
N2  - This paper reports that addition of reduced graphene oxide (rGO) in MgCo2O4 improves the binding of Mg with Co thereby minimizing magnesium dissolution in aqueous alkaline electrolytes and the resulting MgCo2O4/rGO electrodes offered impressive improvements in charge storage properties. An isostructural high performing material, MnCo2O4, is used as a benchmark material in this work. The Mg analogues stored >30 more charges than the Mn-analogues in the 3 M LiOH electrolyte despite the former's lower BET surface area; rGO modification further increased charge storage by?>60 than the unmodified analogues. Electrochemical measurements show that a larger surface fraction of the Mg analogue is electrochemically active, irrespective of whether or not rGO is present, which arise from, typically for MgCo2O4/rGO, lower internal resistance, lower Warburg impedance, and lower charge transfer resistance than the other electrodes. © 2017 Elsevier Ltd
KW  - Alkalinity; Binding energy; Bins; Charge transfer; Chemical stability; Electrochemical electrodes; Electrodes; Electrolytes; Graphene; Manganese; Solar cells; Supercapacitor
KW  -  Alkaline electrolytes; Asymmetric supercapacitor; Charge transfer resistance; Electrochemical measurements; Pseudocapacitors; Reduced graphene oxides; Reduced graphene oxides (RGO); Renewable energies
KW  -  Magnesium
ID  - scholars8505
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019489001&doi=10.1016%2fj.electacta.2017.05.064&partnerID=40&md5=2f94a9bcc164f56fdc577d032c9b9cd5
A1  - Krishnan, S.G.
A1  - Harilal, M.
A1  - Yar, A.
A1  - Vijayan, B.L.
A1  - Dennis, J.O.
A1  - Yusoff, M.M.
A1  - Jose, R.
JF  - Electrochimica Acta
VL  - 243
Y1  - 2017///
N1  - cited By 57
TI  - Critical influence of reduced graphene oxide mediated binding of M (MÂ =Â Mg, Mn) with Co ions, chemical stability and charge storability enhancements of spinal-type hierarchical MCo2O4 nanostructures
SP  - 119
AV  - none
EP  - 128
SN  - 00134686
PB  - Elsevier Ltd
ER  -