A class of transition metal-oxide@MnOx core–shell structured oxygen electrocatalysts for reversible O2 reduction and evolution reactions

2016 ◽  
Vol 4 (36) ◽  
pp. 13881-13889 ◽  
Author(s):  
Yi Cheng ◽  
Shuo Dou ◽  
Martin Saunders ◽  
Jin Zhang ◽  
Jian Pan ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Transition Metal Oxide ◽  
Core Shell ◽  
Shell Type ◽  
O2 Reduction

A novel metal-oxide@MnOx core–shell type structured electrocatalyst has been developed with an excellent bifunctional activity for the ORR and OER and good durability.

Synthesis and electronic properties of transition metal oxide core–shell nanowires

2006 ◽  
Vol 18 (4) ◽  
pp. 044019 ◽  
Author(s):  
Bo Lei ◽  
Song Han ◽  
Chao Li ◽  
Daihua Zhang ◽  
Zuqin Liu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Electronic Properties ◽  
Transition Metal Oxide ◽  
Core Shell ◽  
Shell Nanowires

Transition Metal Oxide Core−Shell Nanowires:  Generic Synthesis and Transport Studies

Nano Letters ◽  
2004 ◽  
Vol 4 (7) ◽  
pp. 1241-1246 ◽  
Author(s):  
Song Han ◽  
Chao Li ◽  
Zuqin Liu ◽  
Bo Lei ◽  
Daihua Zhang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Transition Metal Oxide ◽  
Core Shell ◽  
Transport Studies ◽  
Shell Nanowires

Conductive Polymer/Transition Metal Oxide Hybrid Materials for Lithium Batteries

2002 ◽  
Vol 726 ◽  
Author(s):  
Chai-Won Kwon ◽  
Armel Poquet ◽  
Stéphane Mornet ◽  
Guy Campet ◽  
Josik Portier ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Metal Oxides ◽  
Hybrid Materials ◽  
Vanadium Pentoxide ◽  
Transition Metal Oxides ◽  
Conductive Polymer ◽  
Transition Metal Oxide ◽  
Core Shell ◽  
Potential Range

AbstractOrganic-inorganic hybrid materials were synthesized for use of lithium battery electrode by two strategies: 1) core-shell strategy for tri-dimensional transition metal oxide and 2) intercalation strategy for bi-dimensional (lamellar) transition metal oxide. We choose conductive polymers as an organic component for high electric conductivity and 3d-transition metal oxides as an inorganic counterpart for large capacity and processibility. Polypyrrole/maghemite and poly(3,4-ethylenedioxythiophene) (PEDOT)/vanadium pentoxide hybrids will be presented and compared with their pristine materials for core-shell and intercalation strategies, respectively. Polypyrrole/maghemite showed an enhanced electrochemical reversibility and capacity up to ∼270 mAh/g in the potential range between 1.3 and 4.3 V vs. Li at 8 mA/g. PEDOT/vanadium pentoxide also exhibited improved reversibility and capacity up to ∼330 mAh/g at 15 mA/g between 2.0 ∼ 4.4 V vs. Li on the second discharge. XRD, IR, electron microscopy, XPS and Xray absorption spectroscopy were used to characterize the samples, and to examine oxidation state of the transition metals, doping character of the polymer and the nature of interaction between the polymer and the transition metal oxides.

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