نتایج جستجو برای: methanol synthesis

تعداد نتایج: 437338  

2013
J. M. Bermúdez B. Fidalgo A. Arenillas J. A. Menéndez

The dry reforming of coke oven gases (COG) over an activated carbon used as catalyst has been studied in order to produce a syngas suitable for methanol synthesis. The primary aim of this work was to study the influence of the high amount of hydrogen present in the COG on the process of dry reforming, as well as the influence of other operation conditions, such us temperature and volumetric hou...

2017
Huihong Huang Xiulan Hu Jianbo Zhang Nan Su JieXu Cheng

Decreasing the cost associated with platinum-based catalysts along with improving their catalytic properties is a major challenge for commercial direct methanol fuel cells. In this work, a simple and facile strategy was developed for the more efficient preparation of multi-walled carbon nanotube (MWCNT) -supported Pt/CoPt composite nanoparticles (NPs) via solution plasma sputtering with subsequ...

2014
Suji Kim Mee-Young Shin Kun-Ho Son Ho-Yong Sohn Jae-Hwan Lim Jong-Hwa Lee In-Sook Kwun

Yam (Dioscorea batatas) is widely consumed as functional food for health promotion mainly in East Asia countries. We assessed whether yam root (tuber) or bark (peel) extracts stimulated the activity of osteoblasts for osteogenesis. MC3T3-E1 cells (mouse osteoblasts) were treated with yam root extracts (water or methanol) (study I) or bark extracts (water or hexane) (study II) within 0~10 μg/mL ...

Journal: :Chemical communications 2011
Bikash Kumar Jena Subash Chandra Sahu Biswarup Satpati Ranjan K Sahu Debadhyan Behera Swagatika Mohanty

A facile approach has been developed for synthesis of highly-structured, anisotropic Pd nanostructures. The dendritic Pd nanostructures show superior performance toward oxidation of formic acid and methanol for fuel cell application.

Journal: :Chemical communications 2012
Søren Kegnæs Jerrik Mielby Uffe V Mentzel Thomas Jensen Peter Fristrup Anders Riisager

Synthesis of amides by aerobic oxidative coupling of alcohols or aldehydes with amines via intermediate formation of methyl esters is highly efficient and selective when using a catalytic system comprised of supported gold nanoparticles and added base in methanol.

Journal: :Chemical communications 2011
Anthony Yoboué Audrey Susset Asma Tougerti Daniel Gallego Sudarsan Venkat Ramani Malathi Kalyanikar Dmitriy S Dolzhnikov Sileshi G Wubshet Yilun Wang Sylvain Cristol Valérie Briois Camille La Fontaine Régis M Gauvin Jean-François Paul Elise Berrier

Heterogeneous Re/SiO(2) catalysts prepared using a one pot sol-gel synthesis were found to display high activity in the direct, selective methanol conversion to methylal, which is correlated to an unprecedented rhenium oxide structure.

Journal: :Chemical communications 2012
Guangxu Chen Yueming Tan Binghui Wu Gang Fu Nanfeng Zheng

A new strategy for synthesis of Pt nanocubes on various supports by reduction of a Pt precursor under a CO atmosphere was described. The as-prepared Pt nanocubes supported on multi-walled carbon nanotubes exhibited high activity toward methanol electrooxidation.

Journal: :Ultrasonics sonochemistry 2012
Cristiane B Hobuss Dalila Venzke Bruna S Pacheco Alexander O Souza Marco A Z Santos Sidnei Moura Frank H Quina Karina G Fiametti J Vladimir Oliveira Claudio M P Pereira

This work describes the ultrasound-assisted synthesis of saturated aliphatic esters from synthetic aliphatic acids and either methanol or ethanol. The products were isolated in good yields after short reaction times under mild conditions.

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