Facile microwave-assisted hydrothermal synthesis of SnSe: impurity removal and enhanced thermoelectric properties

2020 ◽  
Vol 8 (30) ◽  
pp. 10333-10341 ◽  
Author(s):  
Jiaqi Sheng ◽  
Xiaofang Liu ◽  
Chengzhi Niu ◽  
Yufeng Sun ◽  
Yao Chen ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Thermoelectric Properties ◽  
Impurity Removal ◽  
Microwave Assisted

Herein, a facile microwave-assisted hydrothermal method was developed for the synthesis of impurity-free SnSe with enhanced thermoelectric properties.

scholarly journals Microwave-Assisted vs. Conventional Hydrothermal Synthesis of MoS2 Nanosheets: Application towards Hydrogen Evolution Reaction

Crystals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1040 ◽  
Author(s):  
Getachew Solomon ◽  
Raffaello Mazzaro ◽  
Vittorio Morandi ◽  
Isabella Concina ◽  
Alberto Vomiero
Keyword(s):  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Current Density ◽  
Crystal Morphology ◽  
Synthesis Method ◽  
Synthesis Methods ◽  
Mos2 Nanosheets ◽  
Microwave Assisted

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.

Rapid microwave assisted hydrothermal synthesis of porous α-Fe2O3 nanostructures as stable and high capacity negative electrode for lithium and sodium ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34761-34768 ◽  
Author(s):  
B. Nageswara Rao ◽  
P. Ramesh Kumar ◽  
O. Padmaraj ◽  
M. Venkateswarlu ◽  
N. Satyanarayana
Keyword(s):  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
High Capacity ◽  
Negative Electrode ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Base Catalyst ◽  
Microwave Assisted

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

Microwave-assisted hydrothermal synthesis of amorphous MoS2 catalysts and their activities in the hydrodeoxygenation of p-cresol

RSC Advances ◽  
2016 ◽  
Vol 6 (84) ◽  
pp. 80641-80648 ◽  
Author(s):  
Kui Wu ◽  
Weiyan Wang ◽  
Song Tan ◽  
Guohua Zhu ◽  
Liang Tan ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
High Activity ◽  
Hydrothermal Method ◽  
Microwave Assisted ◽  
Mos2 Catalysts

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.

Microwave-assisted hydrothermal synthesis of solid-state carbon dots with intensive emission for white light-emitting devices

2017 ◽  
Vol 5 (32) ◽  
pp. 8105-8111 ◽  
Author(s):  
Jingxia Zheng ◽  
Yaling Wang ◽  
Feng Zhang ◽  
Yongzhen Yang ◽  
Xuguang Liu ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Solid State ◽  
Hydrothermal Method ◽  
White Light ◽  
Carbon Dots ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Microwave Assisted ◽  
State Luminescence

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

scholarly journals B-site modified photoferroic Cr3+-doped barium titanate nanoparticles: microwave-assisted hydrothermal synthesis, photocatalytic and electrochemical properties

RSC Advances ◽  
2019 ◽  
Vol 9 (36) ◽  
pp. 20806-20817 ◽  
Author(s):  
I. C. Amaechi ◽  
G. Kolhatkar ◽  
A. Hadj Youssef ◽  
D. Rawach ◽  
S. Sun ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Barium Titanate ◽  
Electrochemical Properties ◽  
Hydrothermal Method ◽  
Microwave Assisted ◽  
Cr Content ◽  
Doped Barium Titanate ◽  
Barium Titanate Nanoparticles

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.

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 ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Electrochemical Performance ◽  
Hydrothermal Method ◽  
Ostwald Ripening ◽  
Oriented Attachment ◽  
Cobalt Phosphide ◽  
Microwave Assisted ◽  
First Time ◽  
Ostwald Ripening Mechanism

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.

Thermoelectric properties of Cu2Se/xNi0.85Se hot-pressed from hydrothermal synthesis nanopowders

2017 ◽  
Vol 31 (09) ◽  
pp. 1750093 ◽  
Author(s):  
Feng Gao ◽  
Xiaohan Du ◽  
Fang Wu ◽  
Xinjian Li ◽  
Xing Hu ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Electrical Resistivity ◽  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
Thermoelectric Properties ◽  
Figure Of Merit ◽  
Secondary Phase ◽  
Seebeck Coefficients ◽  
Maximum Value ◽  
Bulk Alloys

The [Formula: see text] ([Formula: see text] = 0, 0.025, 0.05, 0.075, 0.1, 0.15, 0.2, 0.3, 0.4 and 0.5) nanopowders were synthesized by the hydrothermal method and then were hot-pressed into bulk alloys. The effects of [Formula: see text] secondary phase on the thermoelectric (TE) properties of [Formula: see text] were investigated. For [Formula: see text] and [Formula: see text], both their electrical resistivity and Seebeck coefficients increase. While for [Formula: see text], they decrease instead. The samples for [Formula: see text] have lower thermal conductivity. However, for [Formula: see text], the thermal conductivity rises remarkably. As an overall result, the maximum value of dimensionless TE figure of merit (ZT) reaches 1.52 at 873 K for the sample of [Formula: see text], 36.5% higher than for the sample without [Formula: see text].

An efficient microwave-assisted hydrothermal synthesis of high-quality CuInZnS/ZnS quantum dots

2018 ◽  
Vol 42 (6) ◽  
pp. 4102-4108 ◽  
Author(s):  
Yang Liu ◽  
Xueqian Chen ◽  
Qiang Ma
Keyword(s):  
Quantum Dots ◽  
Hydrothermal Synthesis ◽  
Hydrothermal Method ◽  
High Quality ◽  
Microwave Assisted

In this study, we proposed a microwave-assisted hydrothermal method to synthesize novel CuInZnS/ZnS quantum dots (QDs).

Sign in / Sign up

Export Citation Format

Share Document