Layered Metal Oxides/Hydroxides for High-Performance Supercapacitor

2020 ◽  
pp. 93-111
Author(s):  
Deepa B. Bailmare ◽  
Chandrasekar M. Subramaniyam ◽  
Abhay D. Deshmukh
Keyword(s):  
Metal Oxides ◽  
High Performance

Engineered Nanoscale Single‐Metal‐Oxides Catalytic Thin Films for High‐Performance Water Oxidation

2021 ◽  
pp. 2000896
Author(s):  
Noor‐Ul‐Ain Babar ◽  
Majad Khan ◽  
Khurram Saleem Joya
Keyword(s):  
Thin Films ◽  
Metal Oxides ◽  
Water Oxidation ◽  
High Performance

Mesoporous MnCo2S4 nanosheet arrays as an efficient catalyst for Li–O2 batteries

Nanoscale ◽  
2018 ◽  
Vol 10 (33) ◽  
pp. 15588-15599 ◽  
Author(s):  
Zoya Sadighi ◽  
Jiapeng Liu ◽  
Francesco Ciucci ◽  
Jang-Kyo Kim
Keyword(s):  
Metal Oxides ◽  
High Performance ◽  
Rechargeable Batteries ◽  
Metal Sulfides ◽  
Efficient Catalyst ◽  
Nanosheet Arrays ◽  
Ternary Metal ◽  
Ternary Metal Sulfides

Ternary metal sulfides and ternary metal oxides have received much attention as potential electrodes for high performance rechargeable batteries.

Hierarchical coral-like MnCo2O4.5@Co-Ni LDH composites on Ni foam as promising electrodes for high-performance supercapacitor

2021 ◽  
Author(s):  
yajun JI ◽  
Fei Chen ◽  
Shufen Tan ◽  
Fuyong Ren
Keyword(s):  
Electrochemical Performance ◽  
Metal Oxides ◽  
High Performance ◽  
High Capacity ◽  
Rate Capability ◽  
Negative Electrode ◽  
High Energy ◽  
Hybrid Nanostructures ◽  
High Energy Density ◽  
Ni Foam

Abstract Transition metal oxides are generally designed as hybrid nanostructures with high performance for supercapacitors by enjoying the advantages of various electroactive materials. In this paper, a convenient and efficient route had been proposed to prepare hierarchical coral-like MnCo2O4.5@Co-Ni LDH composites on Ni foam, in which MnCo2O4.5 nanowires were enlaced with ultrathin Co-Ni layered double hydroxides nanosheets to achieve high capacity electrodes for supercapacitors. Due to the synergistic effect of shell Co-Ni LDH and core MnCo2O4.5, the outstanding electrochemical performance in three-electrode configuration was triggered (high area capacitance of 5.08 F/cm2 at 3 mA/cm2 and excellent rate capability of maintaining 61.69 % at 20 mA/cm2), which is superior to those of MnCo2O4.5, Co-Ni LDH and other metal oxides based composites reported. Meanwhile, the as-prepared hierarchical MnCo2O4.5@Co-Ni LDH electrode delivered improved electrical conductivity than that of pristine MnCo2O4.5. Furthermore, the as-constructed asymmetric supercapacitor using MnCo2O4.5@Co-Ni LDH as positive and activated carbon as negative electrode presented a rather high energy density of 220 μWh/cm2 at 2400 μW/cm2 and extraordinary cycling durability with the 100.0 % capacitance retention over 8000 cycles at 20 mA/cm2, demonstrating the best electrochemical performance compared to other asymmetric supercapacitors using metal oxides based composites as positive electrode material. It can be expected that the obtained MnCo2O4.5@Co-Ni LDH could be used as the high performance and cost-effective electrode in supercapacitors.

High performance NiO/MOx-Ce0.5Zr0.5O2 catalysts promoted with metal oxides for CH4-H2O reforming

2019 ◽  
Vol 714 ◽  
pp. 74-80 ◽  
Author(s):  
Jia Zhang ◽  
Ning Wei ◽  
Hexiang Zhong ◽  
Yi Zhou ◽  
Liwei Pan
Keyword(s):  
Metal Oxides ◽  
High Performance

scholarly journals High Performance Reduction/Oxidation Metal Oxides for Thermochemical Energy Storage (PROMOTES)

2016 ◽  
Author(s):  
James E. Miller ◽  
Andrea Ambrosini ◽  
Sean M. Babiniec ◽  
Eric N. Coker ◽  
Clifford K. Ho ◽  
...  
Keyword(s):  
Energy Storage ◽  
Metal Oxides ◽  
High Performance ◽  
Electricity Production ◽  
Power Cycles ◽  
Redox Active ◽  
Active Metal ◽  
Performance Reduction ◽  
Mixed Ionic Electronic Conductors ◽  
Electronic Conductors

Thermochemical energy storage (TCES) offers the potential for greatly increased storage density relative to sensible-only energy storage. Moreover, heat may be stored indefinitely in the form of chemical bonds via TCES, accessed upon demand, and converted to heat at temperatures significantly higher than current solar thermal electricity production technology and is therefore well-suited to more efficient high-temperature power cycles. The PROMOTES effort seeks to advance both materials and systems for TCES through the development and demonstration of an innovative storage approach for solarized Air-Brayton power cycles and that is based on newly-developed redox-active metal oxides that are mixed ionic-electronic conductors (MIEC). In this paper we summarize the system concept and review our work to date towards developing materials and individual components.

Prospect of Ni-related metal oxides for high-performance supercapacitor electrodes

2020 ◽  
Vol 56 (3) ◽  
pp. 1897-1918 ◽  
Author(s):  
Yifeng Lin ◽  
Shuo Zhang ◽  
Lixiu Guan ◽  
Junguang Tao
Keyword(s):  
Metal Oxides ◽  
High Performance
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