scholarly journals Electrochemical properties of NiCoO2 synthesized by hydrothermal method

RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 50753-50759 ◽  
Author(s):  
Xianwei Wang ◽  
Weixia Li ◽  
Xiaoer Wang ◽  
Jingjie Zhang ◽  
Lingyun Sun ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Hydrothermal Method ◽  
Nitrogen Atmosphere ◽  
Annealing Process

NiCoO2 microspheres were successfully synthesized via an easy hydrothermal method, followed by an annealing process at 350 °C under a nitrogen atmosphere.

Needle-like CoO nanowires grown on carbon cloth for enhanced electrochemical properties in supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (52) ◽  
pp. 41627-41630 ◽  
Author(s):  
D. L. Ji ◽  
J. H. Li ◽  
L. M. Chen ◽  
D. Zhang ◽  
T. Liu ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Hydrothermal Method ◽  
Annealing Process ◽  
Cycling Stability ◽  
Carbon Cloth ◽  
Excellent Cycling Stability

Needle-like CoO nanowires grown on carbon cloth have been successfully fabricated by a controllable hydrothermal method followed by an annealing process. The as-fabricated nanostructure showed enhanced specific capacitances and excellent cycling stability in supercapacitors.

Hydrothermal Method–Derived MnMoO 4 Crystals: Effect of Cationic Surfactant on Microstructures and Electrochemical Properties

2020 ◽  
Vol 5 (26) ◽  
pp. 7728-7733
Author(s):  
Melkiyur Isacfranklin ◽  
Balasubramaniam Jansi Rani ◽  
G. Ravi ◽  
Rathinam Yuvakkumar ◽  
Sun Ig Hong ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Hydrothermal Method ◽  
Cationic Surfactant

Structural and electrochemical properties of ZnCo2O4 nanoparticles synthesized by hydrothermal method

Vacuum ◽  
2019 ◽  
Vol 167 ◽  
pp. 307-312 ◽  
Author(s):  
M. Priya ◽  
V.K. Premkumar ◽  
P. Vasantharani ◽  
G. Sivakumar
Keyword(s):  
Electrochemical Properties ◽  
Hydrothermal Method

Enhancement of Luminescence of YPO4:Eu3+,Yb3+ Nanophosphor Synthesized by Hydrothermal Method

2015 ◽  
Vol 1118 ◽  
pp. 77-82 ◽  
Author(s):  
Jiang Ming Zhu ◽  
Jun Mei Hu ◽  
Jin Long Hao ◽  
Ai Yin Wang ◽  
Yue Xiao Pan
Keyword(s):  
Hydrothermal Method ◽  
Room Temperature ◽  
Upconversion Luminescence ◽  
Critical Role ◽  
Hydrothermal Systems ◽  
Annealing Process ◽  
Down Conversion ◽  
Hydrothermal Methods ◽  
The Eu

YPO4 nanowires (NWs) and nanoparticles (NPs) have been synthesized by hydrothermal methods respectively in the absence and presence of EDTA. The Eu3+ and Yb3+ codoped YPO4 NWs and NPs prepared directly from hydrothermal systems show efficient red down-conversion luminescence (DL) and upconversion luminescence (UL) at room temperature without further annealing process. EDTA plays a critical role in controlling the morphologies of YPO4 nanocrystals in hydrothermal systems and enhances both the DL and UL intensities of Eu3+ by the factor of 100%. Monodispersed Eu3+ and Yb3+ codoped YPO4 NPs will be a new candidate for application in infrared displays and biological labels.

scholarly journals Polydentate Schiff Base Ligands and Their La(III) Complexes: Synthesis, Characterization, Antibacterial, Thermal, and Electrochemical Properties

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Ali E. Şabik ◽  
Muharrem Karabörk ◽  
Gökhan Ceyhan ◽  
Mehmet Tümer ◽  
Metin Dığrak
Keyword(s):  
Antimicrobial Activity ◽  
Schiff Base ◽  
Electrochemical Properties ◽  
Antimicrobial Activities ◽  
Nitrogen Atmosphere ◽  
Spectroscopic Methods ◽  
Schiff Base Ligands ◽  
One Step ◽  
The One ◽  
Reversible Transfer

We synthesized the Schiff base ligands H2L1–H2L4 and their La(III) complexes and characterized them by the analytical and spectroscopic methods. We investigated their electrochemical and antimicrobial activity properties. The electrochemical properties of the ligands H2L1–H2L4 and their La(III) complexes were studied at the different scan rates (100 and 200 mV), different pH ranges (), and in the different solvents. The electrooxidation of the Schiff base ligands involves a reversible transfer of two electrons and two protons in solutions of pH up to 5.5, in agreement with the one-step two-electron mechanism. In solutions of pH higher than 5.5, the process of electrooxidation reaction of the Schiff base ligands and their La(III) complexes follows an ECi mechanism. The antimicrobial activities of the ligands and their complexes were studied. The thermal properties of the metal complexes were studied under nitrogen atmosphere in the range of temperature 20–1000°C.

The Effect of Post-Conventional Thermal Annealing Process on the Photoluminescence Characteristics of Si+-Implanted SiO2 Thin Films

2014 ◽  
Vol 602-603 ◽  
pp. 1013-1016
Author(s):  
Fann Wei Yang ◽  
Chien Min Cheng ◽  
Kai Huang Chen
Keyword(s):  
Thin Films ◽  
Annealing Time ◽  
High Intensity ◽  
Nitrogen Atmosphere ◽  
Annealing Process ◽  
Hrtem Image ◽  
Plan View ◽  
Si Nanocrystals ◽  
Thermal Annealing Process ◽  
Pl Intensity

The shifted band and high intensity of the photoluminescence characteristics for RTA-treated Si+-implanted SiO2thin films for 400-nm-thick thickness using post-CTA processing were discussed and investigated. The samples were treated in the temperature of 1150°C and 20s RTA processing under dry nitrogen atmosphere. The PL band of thin films obtained was 1.7 eV. However, the PL intensity of thin films was continuous decreased for RTA annealing time increased. In this study, the PL band for RTA-treated thin films using 1h post-CTA processing was shifted from 1.5 to 1.67 eV. In addition, the PL intensity of the thin films was increased under the post-CTA annealing time increased to 60s. From the plan-view of the HRTEM image, the Si nanocrystals of the RTA-treated thin films using post-CTA processing were observed. These results were related to the presence and variation of silicon Si nanocrystals embedded in thin films.

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