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Article
Construction of Azobenzene Covalent Organic Frameworks as High-Performance Heterogeneous Photocatalyst
Photocatalytic performances of covalent organic frameworks (COFs) have attracted intensive attention by virtue of their regular pore structure, high specific surface area, excellent crystallinity and periodic ...
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Article
Rh1Cu3/ZSM-5 as an Efficient Bifunctional Catalyst/Adsorbent for VOCs Abatement
This study focused on the volatile organic compounds (VOCs) abatement by catalytic combustion/adsorption over Rh-based/ZSM-5. A series of Rh-based catalysts were prepared by wet co-impregnation method and eval...
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Article
A stable Pd-3D double network hydrogel for selective hydrogenation of phenol in water
A novel sodium alginate-based Pd-3D double network hydrogel Pd/Ca–Alg–PAAS has been fabricated and successfully applied in the selective hydrogenation of phenol for the first time. The prepared catalyst showed...
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Article
Hydrogelator as growth-controlling agent for enhancing the catalytic activity of NiB amorphous alloy catalyst
A series of NiB-x (x denotes as the molar ratio of hydrogelator:Ni) amorphous alloys were prepared using a hydrogelator, 2,4-(3,4-dichlorobenzylidene)-d-sorbitol (DCBS), as the controlling agent and were tested i...
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Article
Ni-Mg/γ-Al2O3 catalyst for 4-methoxyphenol hydrogenation: effect of Mg modification for improving stability
A highly stable Mg-modified Ni/γ-Al2O3 catalyst was fabricated by a simple deposition-precipitation method and investigated in the hydrogenation of 4-methoxyphenol. The Mg-modified catalyst showed enhanced cataly...
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Article
A novel magnetic core-shell nanocomposite Fe3O4@chitosan@ZnO for the green synthesis of 2-benzimidazoles
A novel magnetic core-shell nanocomposite Fe3O4@Chitosan@ZnO was successfully prepared by in situ chemical precipitation method. It has a clear core-shell structure with magnetic Fe3O4 (about 160 nm in diameter) ...
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Article
A novel core–shell nanocomposite Ni–Ca@mSiO2 for benzophenone selective hydrogenation
A novel core–shell nanocomposite Ni–Ca@mSiO2 was first prepared by a modified Stöber method in this paper. It has a core–shell structure with Ni (about 8 nm in diameter) and Ca as the cores and mesoporous silica ...
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Article
Preparation of a four-layer magnetic core–shell nanocomposite for the selective hydrogenation of cinnamic acid
A novel magnetic mesoporous four-layer core–shell nanocomposite Fe3O4@nSiO2@ZrO2@Ni–Co–B was successfully fabricated by the combination of a modified Stöber sol–gel and self-assemble method. A facile template-fre...
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Article
Multifunctional magnetic branched polyethylenimine nanogels with in-situ generated Fe3O4 and their applications as dye adsorbent and catalyst support
A series of novel magnetic branched polyethylenimine nanogels (Fe3O4/bPEI) was prepared via the combination of crosslinking branched polyethylenimine to form a nanogel and in-situ generation of Fe3O4 on its surfa...
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Article
Green synthesis of 4-methoxybenzophenone from anisole and benzoic acid catalyzed by tungstophosphoric acid supported on MCM-41
An efficient method was established for the green synthesis of 4-methoxybenzophenone using benzoic acid as acylating agent catalyzed by tungstophosphoric acid (HPW) supported on MCM-41 (HPW/MCM-41). The conver...
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Article
Selective hydrogenation of ethyl benzoate over Ni–B amorphous alloys supported on γ-Al2O3
A series of Ni–B amorphous alloys supported on γ-Al2O3 was prepared by an impregnation chemical reduction method and tested in the selective hydrogenation of ethyl benzoate to ethyl cyclohexane carboxylate. The e...
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Article
Friedel–Crafts acylation of anisole with hexanoic acid catalyzed by Hβ zeolite-supported tungstophosphoric acid
Friedel–Crafts acylation of anisole with hexanoic acid was studied and an efficient method was established for the green synthesis of 4-methoxy phenyl hexyl ketone over an Hβ zeolite-supported tungstophosphori...
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Article
Room temperature synthesis of 2-benzimidazoles with hydrogen peroxide as oxidant and supported ammonium molybdate as catalyst
An environmentally benign method with hydrogen peroxide as oxidant has been developed for the synthesis of 2-benzimidazoles from aromatic aldehydes and o-phenylenediamine. Ammonium molybdate catalyzes this transf...
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Article
Influence of Acid–Base Properties of the Support on Copper-Based Catalysts for Catalytic Dehydrogenation of 2-Butanol
Copper-based catalysts, supported on γ-Al2O3, La2O3, and γ-Al2O3–La2O3, respectively, were prepared by co-precipitation and tested in the continuous dehydrogenation of 2-butanol to methyl ethyl ketone. The cataly...
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Article
Friedel–Crafts Hydroxyalkylation of Anisole Over Oxalic Acid Modified Hβ Zeolite
Oxalic acid modified Hβ (OA-Hβ) zeolite is found to have better catalytic performance than Hβ zeolite in the Friedel–Crafts hydroxyalkylation of anisole with chloral. This is attributed to the increase of weak...
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Article
Effects of the preparation method and calcination temperature on Cu–Cr–Mg–Al catalysts for the dehydrogenation of cyclohexanol
The activities of the Cu–Cr–Mg–Al catalysts in the dehydrogenation of cyclohexanol to cyclohexanone were correlated with particle sizes and the reducibility of the copper species based on XRD and TPR character...
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Article
Tungsten-based catalysts for the oxidation of cyclohexanol: The effect of phase transfer catalysts
The oxidation of cyclohexanol with hydrogen peroxide in the presence of tungsten-based catalysts was studied in this paper. The effect of phase transfer catalysts was discussed and clarified. [CTA]9[SbW9O33] show...
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Article
Effect of carriers and additives on the activity and stability of copper-based catalysts for the dehydrogenation of cyclohexanol
A continuous process for the dehydrogenation of cyclohexanol to cyclohexanone on copper-based catalysts was described. The catalysts were characterized by XRD, XPS and TPR, and Cu0 was found to be the active site...
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Article
Racemization of chiral amino alcohols III: Effect of Mg or Ca addition on the activity and stability of the Co/γ-Al2O3 catalyst
The racemization of R-(-)-2-amino-1-butanol in a reaction using Co/γ-Al2O3 catalysts and catalysts modified by Mg or Ca was investigated in this paper. Complete racemization was achieved with a yield of over 83% ...
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Article
Racemization of chiral amino alcohols: Catalyst selection and characterization
The transformation of R-(-)-2-amino-1-butanol to the racemic mixtures was selected as a model for the racemization of chiral amino alcohols. A 40% Co/γ-Al2O3 catalyst was found to be active enough for the comp...
