scholarly journals Charge transfer dynamical processes at graphene-transition metal oxides/electrolyte interface for energy storage: Insights from in-situ Raman spectroelectrochemistry

AIP Advances ◽  
2018 ◽  
Vol 8 (6) ◽  
pp. 065225 ◽  
Author(s):  
S. Gupta ◽  
S. B. Carrizosa ◽  
J. Jasinski ◽  
N. Dimakis
Keyword(s):  
Charge Transfer ◽  
Energy Storage ◽  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Dynamical Processes ◽  
In Situ Raman ◽  
Electrolyte Interface

Activation of transition metal oxides by in-situ electro-regulated structure-reconstruction for ultra-efficient oxygen evolution

Nano Energy ◽  
2019 ◽  
Vol 58 ◽  
pp. 778-785 ◽  
Author(s):  
Huawei Huang ◽  
Chang Yu ◽  
Hongling Huang ◽  
Changtai Zhao ◽  
Bo Qiu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Oxygen Evolution ◽  
Transition Metal Oxides ◽  
Structure Reconstruction

Binary metal oxide: advanced energy storage materials in supercapacitors

2015 ◽  
Vol 3 (1) ◽  
pp. 43-59 ◽  
Author(s):  
Yufei Zhang ◽  
Laiquan Li ◽  
Haiquan Su ◽  
Wei Huang ◽  
Xiaochen Dong
Keyword(s):  
Energy Storage ◽  
Transition Metal ◽  
Metal Oxide ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Electrode Materials ◽  
Electronic Conductivity ◽  
Reversible Capacity ◽  
Energy Storage Materials ◽  
Binary Metal Oxide

Binary transition metal oxides (BTMOs) possess higher reversible capacity, better structural stability and electronic conductivity, and have been widely studied to be novel electrode materials for supercapacitors.

scholarly journals The Effects of Transition Metal Oxides (Me = Ti, Zr, Nb, and Ta) on the Mechanical Properties and Interfaces of B4C Ceramics Fabricated via Pressureless Sintering

Coatings ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1253
Author(s):  
Guanqi Liu ◽  
Shixing Chen ◽  
Yanwei Zhao ◽  
Yudong Fu ◽  
Yujin Wang
Keyword(s):  
Mechanical Properties ◽  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Milling Process ◽  
Second Phase ◽  
Pressureless Sintering ◽  
And Performance ◽  
Better Than

There is little available research on how different transition metal oxides influence the behavior of B4C-based ceramics, especially for Ta2O5 and Nb2O5. B4C-MeB2 (Me = Ti, Zr, Nb, and Ta) multiphase ceramic samples were prepared via in situ pressureless sintering at 2250 °C, involving the mixing of B4C and MeOx powders, namely TiO2, ZrO2, Nb2O5, and Ta2O5. The phase constituents, microstructures, and mechanical properties of the samples were tested. The results indicated that different transition metal elements had different effects on the ceramic matrix, as verified through a comparative analysis. Additionally, the doped WC impurity during the ball milling process led to the production of (Me, W)B2 and W2B5, which brought about changes in morphology and performance. In this study, the Ta2O5-added sample exhibited the best performance, with elastic modulus, flexural strength, Vickers hardness, and fracture toughness values of 312.0 GPa, 16.3 GPa, 313.0 MPa, and 6.08 MPa·m1/2, respectively. The comprehensive mechanical properties were better than the reported values when the mass fraction of the second phase was around five percent.

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