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Showing papers in "Chinese Journal of Catalysis in 2011"


Journal ArticleDOI
TL;DR: In this paper, a new alternative approach using emulsion catalysts was developed, which can selectively oxidize the sulfur-containing molecules present in diesel to their corresponding sulfones when using H 2 O 2 as the oxidant under mild conditions.

183 citations


Journal ArticleDOI
TL;DR: In this article, a series of WO3/ZnO composite photocatalysts were prepared by a precipitation-grinding method followed by calcination at different temperatures.

115 citations


Journal ArticleDOI
TL;DR: In this article, the role of carbon materials in heterogeneous catalysis is assessed and publications on methane decomposition and CO2 reforming of methane over carbon materials are reviewed and the influence of textural properties (BET surface area and micropore volume, etc.) and oxygen surface groups on the catalytic activity of carbon material are discussed.

89 citations


Journal ArticleDOI
TL;DR: The mechanism of NH3-selective catalytic reduction (SCR) over a CeO2-WO3 catalyst was investigated by temperature-programmed desorption (TPD) analysis and in situ diffuse reflectance infrared Fourier transform spectroscopy.

79 citations


Journal ArticleDOI
TL;DR: In this paper, a hierarchical flower-like TiO2 superstructures (HFTS) self-assembled from anatase TiO 2 nanosheets with exposed {001} facets (up to 87%) were synthesized by a simple alcohothermal strategy in a HF-H2O-C2H5OH mixed solution using titanate nanotubes as precursor.

77 citations


Journal ArticleDOI
TL;DR: In this article, the catalytic activity of Fe3O4 nanoparticles in a one-pot three component condensation reaction consisting of an aromatic aldehyde, urea or thiourea, and a β-dicarbonyl under solvent-free conditions was investigated.

76 citations


Journal ArticleDOI
TL;DR: In this paper, the photocatalytic activities for the degradation of Rhodamine B (RhB) in aqueous solutions of anatase, rutile, and brookite TiO2 were compared.

76 citations


Journal ArticleDOI
TL;DR: In this paper, the recalcitrant structure of cellulose is discussed and non-catalytic hydrolysis by hot-compressed water and catalytic hydroxylation using solid acids are then considered.

75 citations


Journal ArticleDOI
TL;DR: In this paper, a series of Ce-doped 8%Mn-yCe/TiO2-PILC catalysts were prepared and evaluated for their performance in the low-temperature selective catalytic reduction (SCR) of NO with NH3.

72 citations


Journal ArticleDOI
TL;DR: In this article, a Cu-SAPO-34/cordierite catalyst was prepared by in situ hydrothermal synthesis, and the morphology and structure of the catalysts were characterized by X-ray diffraction, scanning electron microscopy, and physical adsorption-desorption analyzer.

65 citations


Journal ArticleDOI
TL;DR: In this article, Ni catalysts supported on γ-Al2O3 were synthesized by an impregnation method and their catalytic performance in methane dry reforming was investigated in a microreactor using a CO2:CH4 feed ratio of 1:1, a F/W = 2640 ml/(h·g), reaction temperatures between 500-850 (C), and at atmospheric pressure.

Journal ArticleDOI
TL;DR: In this article, five kinds of transition metal oxides supported on alumina and prepared by wetness impregnation were evaluated for catalytic ozonation of toluene at room temperature and characterized by temperatureprogrammed reduction, temperature-programmed oxidation, N2 adsorption-desorption, and X-ray photoelectron spectroscopy.

Journal ArticleDOI
TL;DR: In this article, various NaY zeolites modified by alkaline earth metals (Mg, Ca, Sr, and Ba) were synthesized and used as catalysts for the dehydration of lactic acid to acrylic acid.

Journal ArticleDOI
TL;DR: Sulfuric acid ([3-(3-silicapropyl)sulfanyl]propyl)ester is employed as a recyclable catalyst for the condensation reaction between aromatic aldehydes and 3-methyl-l-phenyl-5-pyrazolone as mentioned in this paper.

Journal ArticleDOI
TL;DR: In this paper, the photocatalytic performance of the BiVO4 samples was evaluated for the degradation of methyl orange (MO) under visible-light irradiation condition, and the results showed that the surfactant and pH had a significant influence on the particle morphology of the biVO4 product.

Journal ArticleDOI
TL;DR: In this article, a facile hydrothermal method was used to synthesize a graphene-CdSe composite for photodegradation of methylene blue (MB), methyl orange (MO) and rhodamine B (Rh.B) in aqueous solution under UV or visible light irradiation.

Journal ArticleDOI
TL;DR: In this paper, the reduction of CO2 by water was performed in the presence of a Ag/TiO2 catalyst under illumination by lamps with different wavelengths (254, 365, and 400 nm).

Journal ArticleDOI
Haijie Sun1, Wei Guo1, Xiaoli Zhou1, Zhihao Chen1, Zhongyi Liu1, Shouchang Liu1 
TL;DR: In this article, the thermodynamics and kinetics for selective hydrogenation of benzene to cyclohexene over these catalysts, and the influence of the structure and composition of the catalysts were described.

Journal ArticleDOI
TL;DR: In this article, the deactivation of nickel catalysts used in Arak and Razi petrochemical complexes followed by catalyst regeneration was evaluated, and the results showed that no residual sulfur components were on the regenerated Razi catalyst surface without changing the structure of the catalyst, and that regenerated catalyst gained 80% of its catalytic activity.

Journal ArticleDOI
Dan Liang1, Shiyu Cui, Jing Gao1, Junhua Wang1, Ping Chen1, Zhaoyin Hou1 
TL;DR: In this paper, a series of bimetallic Pt-Bi catalysts with a constant platinum content of 5.0 wt% and a varied bismuth content (3.0-7.0wt%) supported on active carbon were prepared and used for glycerol oxidation with oxygen under atmospheric pressure.

Journal ArticleDOI
TL;DR: In this paper, the current progress in fuels' generation directly driven by solar energy is summarised and some fundamental mechanisms are discussed with suggestions for future research with the aim of creating an essentially free carbon or at least carbon neutral energy cycle.

Journal ArticleDOI
TL;DR: In this article, a series of Cu/SiO2 catalysts for the hydrogenation of dimethyl oxalate to ethylene glycol were prepared by the sol-gel method.

Journal ArticleDOI
Shoubin Xu1, Long Jiang1, Haigang Yang1, Yuanqing Song1, Yi Dan1 
TL;DR: In this article, the photocatalysis reactive mechanisms of polythiophene/titanium dioxide (PTh/TiO2) composite particles were examined through the degradation processes of a rhodamine B solution under UV irradiation and visible light irradiation.

Journal ArticleDOI
TL;DR: In this article, the gas phase catalytic hydrodechlorination (HDC) of chlorobenzene (CB) has been studied over bulk Pd and Ni and ((8 ± 1) wt%) Pd/Ni supported on activated carbon (AC), graphite, graphitic nanofibers (GNF), Al2O3, and SiO2.

Journal ArticleDOI
TL;DR: The role of Re oxide in Ru-Re/SiO2 catalyzed glycerol hydrogenolysis was discussed in this paper, where the acid properties of different Re contents were evaluated.

Journal ArticleDOI
TL;DR: Nickel hexacyanoferrate nanoparticles were synthesized and characterized using elemental analysis, thermal analysis, infrared spectroscopy, and X-ray diffraction using elemental, thermal, and infrared images as mentioned in this paper.

Journal ArticleDOI
TL;DR: In this paper, a carbon paste electrode (CPE) modified with ferrocene carboxylic acid (FcCA) and TiO2 nanoparticles was constructed for the detection of captopril in pharmaceutical and biological samples.

Journal ArticleDOI
TL;DR: In this article, the effect of the catalyst preparation method and the Ni/Mo ratio on the increase in catalyst life and the promotion of catalytic activity were investigated using N 2 adsorption, X-ray diffraction, temperatureprogrammed carburization, temperature-programmed reaction, and a reforming reaction.

Journal ArticleDOI
TL;DR: In this paper, the direct decomposition of N2O was investigated over a series of magnesium cobaltite catalysts, MgxCo1-xCo2O4 (0.0 ≤ x ≤ 1.0).

Journal ArticleDOI
Wen Yang1, Wei Chu1, Chengfa Jiang1, Jie Wen1, Wenjing Sun1 
TL;DR: In this paper, Ni/MgO, Ni/CeO2, MgO and Ni/cceO2 catalysts were evaluated for the synthesis of multi-walled carbon nanotubes (MWCNTs) by chemical vapor deposition using CH4 as carbon source.