High performance ethanol and acetone gas sensing behavior of FeCo2O4/graphene hybrid sensors prepared by facile hydrothermal route

Optik ◽  
2020 ◽  
Vol 223 ◽  
pp. 165571
Author(s):  
S. Rathinavel ◽  
G. Balaji ◽  
S. Vadivel
Keyword(s):  
High Performance ◽  
Gas Sensing ◽  
Hydrothermal Route ◽  
Facile Hydrothermal Route ◽  
Hybrid Sensors

Hybrid ZnCo2O4@Co3S4 Nanowires for High-Performance Asymmetric Supercapacitors

2020 ◽  
Vol 15 (12) ◽  
pp. 1552-1558
Author(s):  
Yongli Tong ◽  
Xinyu Cheng ◽  
Dongli Qi ◽  
Baoqian Chi ◽  
Weiqiang Zhang
Keyword(s):  
High Performance ◽  
Reaction Path ◽  
Nickel Foam ◽  
Energy Storage Materials ◽  
Electrochemical Performances ◽  
Hydrothermal Route ◽  
Asymmetric Supercapacitors ◽  
High Area ◽  
Facile Hydrothermal Route

We successfully fabricate hierarchical ZnCo2O4@Co3S4 nanowires directly supported on nickel foam by a facile hydrothermal route. The as-synthesized product possesses large specific surface area and short reaction path, which result in superior electrochemical performances as the electrode of supercapacitor (SC). The obtained electrode material shows high area capacitance of 2.02 C g-1 at current density of 0.8 A g-1 with 95.3% retention of initial capacitance after 6000 cycles. Moreover, the assembled asymmetric supercapacitor (ASC) device using ZnCo2O4@Co3S4 nanowires as anode material displays noticeable electrochemical capability with an energy density of 79.8 mW h g-1 at power density of 1795 W kg-1 and 73.2 mW h g-1 at 9760 W kg-1. In addition, the device shows remarkable cycling capability, maintaining 82.2% retention after long-term cycles. It reveals the as-fabricated material would be promising energy storage materials.

Well-aligned Nd-doped SnO2 nanorod layered arrays: preparation, characterization and enhanced alcohol-gas sensing performance

2016 ◽  
Vol 18 (7) ◽  
pp. 5537-5549 ◽  
Author(s):  
Guohui Qin ◽  
Fan Gao ◽  
Qiuping Jiang ◽  
Yuehua Li ◽  
Yongjun Liu ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Hydrothermal Route ◽  
Facile Hydrothermal Route ◽  
Sno2 Nanorod ◽  
Sensing Performance

Nd-doped SnO2 nanoarrays with novel nanostructures of double nanorod layers prepared by a facile hydrothermal route greatly improve alcohol-sensing performance.

Development of high-performance fiber optic gas sensor based rice-like CeO2/MWCNT nanocomposite synthesized by facile hydrothermal route

2020 ◽  
Vol 123 ◽  
pp. 105902 ◽  
Author(s):  
Shajahan Shanavas ◽  
Tansir Ahamad ◽  
Saad M. Alshehri ◽  
Aeysha Sultan ◽  
Roberto Acevedo ◽  
...  
Keyword(s):  
Gas Sensor ◽  
High Performance ◽  
Fiber Optic ◽  
Hydrothermal Route ◽  
Facile Hydrothermal Route ◽  
High Performance Fiber

scholarly journals Constructing high-performance electrode materials using core–shell ZnCo2O4@PPy nanowires for hybrid batteries and water splitting

RSC Advances ◽  
2020 ◽  
Vol 10 (47) ◽  
pp. 28324-28331 ◽  
Author(s):  
Xiaoyun Liu ◽  
Qian Li ◽  
Yanli Qin ◽  
Yueqiu Jiang
Keyword(s):  
Electrochemical Performance ◽  
Water Splitting ◽  
Electrochemical Deposition ◽  
High Performance ◽  
Electrode Materials ◽  
Deposition Process ◽  
Promising Method ◽  
Core Shell ◽  
Hydrothermal Route ◽  
Facile Hydrothermal Route

Heterogeneity can be used as a promising method to improve the electrochemical performance of electrode materials; thus, ZnCo2O4@PPy samples were prepared using a facile hydrothermal route and an electrochemical deposition process.

scholarly journals Hydrothermal Synthesis of SnO2 Nanoneedle-Anchored NiO Microsphere and its Gas Sensing Performances

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 1015 ◽  
Author(s):  
Zhijie Wei ◽  
Qu Zhou ◽  
Jingxuan Wang ◽  
Zhaorui Lu ◽  
Lingna Xu ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Barrier Height ◽  
Potential Barrier ◽  
Growth Mechanism ◽  
High Performance ◽  
Surface Reaction ◽  
Gas Sensing ◽  
Potential Barrier Height ◽  
The Novel ◽  
Hydrothermal Route

In this study, we reported a successful synthesis of a nanocomposite based on SnO2 nanoneedles anchored to NiO microsphere by a simple two-step hydrothermal route. The results show that the SnO2/NiO nanocomposite-based sensor exhibits more prominent performances than the pristine NiO microsphere to NO2 such as larger responses and more outstanding repeatability. The improved properties are mainly attributed to the p–n heterojunctions formed at the SnO2–NiO interface, leading to the change of potential barrier height and the enlargement of the depletion layer. Besides, the novel and unique nanostructure provides large and effective areas for the surface reaction. In addition, a plausible growth mechanism and the enhanced sensing mechanism were proposed to further discuss the special nanostructure which will benefit the exploration of high-performance sensors.

MnMoO4·4H2O nanoplates grown on a Ni foam substrate for excellent electrochemical properties

2014 ◽  
Vol 2 (48) ◽  
pp. 20723-20728 ◽  
Author(s):  
Yunjiu Cao ◽  
Wenyao Li ◽  
Kaibing Xu ◽  
Yuxin Zhang ◽  
Tao Ji ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Specific Capacitance ◽  
High Performance ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Electrochemical Performances ◽  
Ni Foam ◽  
Hydrothermal Route ◽  
Facile Hydrothermal Route ◽  
Good Cycling Stability

MnMoO4·4H2O nanoplates were grown directly on a Ni foam by a facile hydrothermal route with enhanced electrochemical performances, i.e., a high specific capacitance of 1.15 F cm−2 (2300 F g−1) at 4 mA cm−2 and a good cycling stability of 92% of the initial specific capacitance after 3000 cycles, which may be considered a prospective material for high-performance electrochemical capacitors.

Facile hydrothermal synthesis of NiS hollow microspheres with mesoporous shells for high-performance supercapacitors

2016 ◽  
Vol 40 (2) ◽  
pp. 1663-1670 ◽  
Author(s):  
Zhongchun Li ◽  
Aijun Gu ◽  
Jianhua Sun ◽  
Quanfa Zhou
Keyword(s):  
Hydrothermal Synthesis ◽  
High Performance ◽  
Hollow Microspheres ◽  
Hydrothermal Route ◽  
Capacitive Performance ◽  
Facile Hydrothermal Route

Hollow NiS microspheres with excellent capacitive performance were prepared by a facile hydrothermal route without any surfactant or template.

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