Microwave-assisted hydrothermal synthesis of cobalt phosphide nanostructures for advanced supercapacitor electrodes

CrystEngComm ◽  
2018 ◽  
Vol 20 (17) ◽  
pp. 2413-2420 ◽  
Author(s):  
Feng Liang ◽  
Liang Huang ◽  
Liang Tian ◽  
Junyi Li ◽  
Haijun Zhang ◽  
...  

Co2P nanoshuttles which demonstrated remarkable electrochemical performance were synthesized for the first time by a microwave-assisted hydrothermal method. A combined oriented attachment and Ostwald ripening mechanism is proposed for the formation of Co2P nanoshuttles.

2015 ◽  
Vol 3 (37) ◽  
pp. 18882-18888 ◽  
Author(s):  
Yubin Liu ◽  
Minying Liu ◽  
Tongbin Lan ◽  
Jie Dou ◽  
Mingdeng Wei

Nb doped brookite TiO2 nanosheets were fabricated for the first time. It was found that these materials were formed through oriented attachment followed by Ostwald ripening and exhibited enhanced lithium-ion intercalation properties.


Crystals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1040 ◽  
Author(s):  
Getachew Solomon ◽  
Raffaello Mazzaro ◽  
Vittorio Morandi ◽  
Isabella Concina ◽  
Alberto Vomiero

Molybdenum sulfide (MoS2) has emerged as a promising catalyst for hydrogen evolution applications. The synthesis method mainly employed is a conventional hydrothermal method. This method requires a longer time compared to other methods such as microwave synthesis methods. There is a lack of comparison of the two synthesis methods in terms of crystal morphology and its electrochemical activities. In this work, MoS2 nanosheets are synthesized using both hydrothermal (HT-MoS2) and advanced microwave methods (MW-MoS2), their crystal morphology, and catalytical efficiency towards hydrogen evolution reaction (HER) were compared. MoS2 nanosheet is obtained using microwave-assisted synthesis in a very short time (30 min) compared to the 24 h hydrothermal synthesis method. Both methods produce thin and aggregated nanosheets. However, the nanosheets synthesized by the microwave method have a less crumpled structure and smoother edges compared to the hydrothermal method. The as-prepared nanosheets are tested and used as a catalyst for hydrogen evolution results in nearly similar electrocatalytic performance. Experimental results showed that: HT-MoS2 displays a current density of 10 mA/cm2 at overpotential (−280 mV) compared to MW-MoS2 which requires −320 mV to produce a similar current density, suggesting that the HT-MoS2 more active towards hydrogen evolutions reaction.


RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34761-34768 ◽  
Author(s):  
B. Nageswara Rao ◽  
P. Ramesh Kumar ◽  
O. Padmaraj ◽  
M. Venkateswarlu ◽  
N. Satyanarayana

Porous α-Fe2O3 nanostructures were developed in the presence of a base catalyst by a rapid microwave assisted hydrothermal method.


CrystEngComm ◽  
2020 ◽  
Vol 22 (18) ◽  
pp. 3115-3121 ◽  
Author(s):  
YuQin Mao ◽  
JianGang Wei ◽  
Yongjin Zou ◽  
LuPing Zhu

Flower-like BaMoO4 hierarchical architectures were prepared by a facile solvothermal method. A nucleation–oriented attachment–assembly–Ostwald ripening mechanism is presented for the formation of the BaMoO4 samples.


RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 80641-80648 ◽  
Author(s):  
Kui Wu ◽  
Weiyan Wang ◽  
Song Tan ◽  
Guohua Zhu ◽  
Liang Tan ◽  
...  

MoS2 was fast synthesized by microwave-assisted hydrothermal method using MoCl5 and (NH2)2CS as starting materials and exhibited high activity: the deoxygenation degree reached to 92.4% in the HDO of p-cresol at 300 °C for 6 h.


2017 ◽  
Vol 5 (32) ◽  
pp. 8105-8111 ◽  
Author(s):  
Jingxia Zheng ◽  
Yaling Wang ◽  
Feng Zhang ◽  
Yongzhen Yang ◽  
Xuguang Liu ◽  
...  

Carbon dots synthesized by a microwave-assisted hydrothermal method exhibit efficient solid-state luminescence for white light-emitting devices.


RSC Advances ◽  
2019 ◽  
Vol 9 (36) ◽  
pp. 20806-20817 ◽  
Author(s):  
I. C. Amaechi ◽  
G. Kolhatkar ◽  
A. Hadj Youssef ◽  
D. Rawach ◽  
S. Sun ◽  
...  

We report on the synthesis of photoferroic Cr3+-doped BaTiO3 nanoparticles with nominal Cr content ranging from 2–8 mol% by a microwave-assisted hydrothermal method.


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