Meaningful Differences in Spectral Performance, Thermal Behavior, and Heterogeneous Catalysis between Ammonium Molybdate Tetrahydrate and Its Adduct of β-Cyclodextrin

2010 ◽  
Vol 114 (9) ◽  
pp. 3404-3410 ◽  
Author(s):  
Le Xin Song ◽  
Mang Wang ◽  
Zheng Dang ◽  
Fang Yun Du
Keyword(s):  
Heterogeneous Catalysis ◽  
Thermal Behavior ◽  
Ammonium Molybdate ◽  
Spectral Performance ◽  
Ammonium Molybdate Tetrahydrate

Effect of Mixing of Carbon Support from Sawdust and Sugarcane Bagasse by Hydrothermal Carbonization for Synthesis of Molybdenum Disulfide (MoS2) Catalyst

2018 ◽  
Vol 940 ◽  
pp. 35-39
Author(s):  
Peerawith Sumtong ◽  
Vituruch Goodwin ◽  
Nuwong Chollacoop ◽  
Apiluck Eiad-Ua
Keyword(s):  
Molybdenum Disulfide ◽  
Sugarcane Bagasse ◽  
Functional Group ◽  
Carbon Support ◽  
Hydrothermal Carbonization ◽  
Ammonium Molybdate ◽  
Optimum Ratio ◽  
Calcination Process ◽  
Ammonium Molybdate Tetrahydrate ◽  
Scanning Electron

Molybdenum disulfide (MoS2) catalyst on carbon support from varying ratio of sawdust and sugarcane bagasse has been successfully synthesized by hydrothermal carbonization and calcination process. Hydrothermal carbonization of lignocellulosic structure into carbon support is investigated at 200 oC for 24 hr and calcination at 600 °C for 2 hr. The precursor of MoS2 catalyst is prepared using thiourea (CH4N2S) and ammonium molybdate tetrahydrate ((NH4)6Mo7O24 . 4H2O) loaded on carbon support. The lignocellulosic structure as hemicellulose and cellulose is changed at high temperature via hydrothermal carbonization and calcination. The distribution of molybdenum disulfide on carbon support is varied based on morphology and functional group of carbon support. The morphology and functional group were analyzed using Scanning Electron Microscope (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). It shows that carbon support at equal ratio (1:1) of sawdust and sugarcane bagasse is an optimum ratio with high distribution of molybdenum disulfide catalyst on carbon support.

Preparation of Molybdenum Coating on Surface of SiC Particles by Sol-Gel Method

2013 ◽  
Vol 721 ◽  
pp. 224-228
Author(s):  
Shun Li ◽  
Meng Jian Zhu ◽  
Meng Liu ◽  
Shu Xin Bai
Keyword(s):  
Hydrogen Reduction ◽  
Sol Gel ◽  
Reduction Process ◽  
Ammonium Molybdate ◽  
Raw Material ◽  
Molybdenum Coating ◽  
Gel Method ◽  
Sol Gel Method ◽  
Sic Particles ◽  
Ammonium Molybdate Tetrahydrate

The preparation of molybdenum coating on the SiC particles has been investigated with sol-gel method. The results show that SiC particles with molybdenum coating are gained after two-stage hydrogen reduction process, using ammonium molybdate tetrahydrate as raw material.

Green and Facile Synthesis of Molybdenum Oxide-Graphene Composite Electrodes for Supercapacitor Application

2016 ◽  
Vol 863 ◽  
pp. 90-94
Author(s):  
M.Y. Ho ◽  
P.S. Khiew ◽  
W.S. Chiu
Keyword(s):  
Electrode Materials ◽  
Pyrolytic Graphite ◽  
Ammonium Molybdate ◽  
Pristine Graphene ◽  
Composite Electrodes ◽  
Supercapacitor Application ◽  
Graphene Composite ◽  
Transmission Electron ◽  
Enhanced Electrochemical Performance ◽  
Ammonium Molybdate Tetrahydrate

MoO3-graphene composite have been successfully synthesized via facile, effective and scalable solvothermal process as electrode materials for supercapacitors. Highly pristine graphene synthesized from mild treatment of raw highly pyrolytic graphite in proper ratio of ethanol and water. The field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS) and transmission electron microscope (TEM) revealed that the formation of MoO3 particles from ammonium molybdate tetrahydrate precursor and ethylene glycol as reducing agent during solvothermal treatment. The cyclic voltammetry (CV) showed that MoO3-graphene composite electrodes exhibited capacitive performance of 148 F/g in the presence of mild 1 M Na2SO3 aqueous electrolyte. The enhanced electrochemical performance of the composite electrodes can be ascribed to the high electrical conductivity of the synthesized graphene and the good pseudocapacitance of MoO3.

scholarly journals The novel and facile preparation of multilayer MoS2 crystals by a chelation-assisted sol–gel method and their electrochemical performance

RSC Advances ◽  
2017 ◽  
Vol 7 (15) ◽  
pp. 9009-9014 ◽  
Author(s):  
Xingzhong Guo ◽  
Zichen Wang ◽  
Wenjun Zhu ◽  
Hui Yang
Keyword(s):  
Electrochemical Performance ◽  
Molybdenum Disulfide ◽  
Sol Gel ◽  
Ammonium Molybdate ◽  
The Novel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Facile Preparation ◽  
Ammonium Molybdate Tetrahydrate ◽  
Diethylenetriamine Pentaacetic Acid

Multilayer molybdenum disulfide was prepared by a chelation-assisted sol–gel method with ammonium molybdate tetrahydrate, thioacetamide and diethylenetriamine pentaacetic acid (Dtpa), followed by calcination.

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