Dehydration of sugars to 5-hydroxymethylfurfural and non-stoichiometric formic and levulinic acids over mesoporous Ta and Ta-W oxide solid acid catalysts
Publication date: August 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 8Author(s): Bin Guo, Lulu He, Gangfeng Tang, Li Zhang, Lin Ye, Bin Yue, Shik Chi Edman Tsang, Heyong He (Source: Chinese Journal of Catalysis)
Source: Chinese Journal of Catalysis - March 13, 2020 Category: Chemistry Source Type: research
Understanding the deactivation behavior of Pt/WO3/Al2O3 catalyst in the glycerol hydrogenolysis reaction
Publication date: August 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 8Author(s): Nian Lei, Zhili Miao, Fei Liu, Hua Wang, Xiaoli Pan, Aiqin Wang, Tao Zhang (Source: Chinese Journal of Catalysis)
Source: Chinese Journal of Catalysis - March 13, 2020 Category: Chemistry Source Type: research
Role of ball milling during Cs/X catalyst preparation and effects on catalytic performance in side-chain alkylation of toluene with methanol
Publication date: August 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 8Author(s): Qijun Yu, Jinzhe Li, Changcheng Wei, Shu Zeng, Shutao Xu, Zhongmin Liu (Source: Chinese Journal of Catalysis)
Source: Chinese Journal of Catalysis - March 13, 2020 Category: Chemistry Source Type: research
Geometric effect promoted hydrotalcites catalysts towards aldol condensation reaction
Publication date: August 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 8Author(s): Huimin Wang, Weihan Bing, Chunyuan Chen, Yusen Yang, Ming Xu, Lifang Chen, Lei Zheng, Xiaolin Li, Xin Zhang, Jianjun Yin, Min Wei (Source: Chinese Journal of Catalysis)
Source: Chinese Journal of Catalysis - March 13, 2020 Category: Chemistry Source Type: research
Asymmetric photocatalysis over robust covalent organic frameworks with tetrahydroquinoline linkage
Publication date: August 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 8Author(s): Chunzhi Li, Yinhua Ma, Haoran Liu, Lin Tao, Yiqi Ren, Xuelian Chen, He Li, Qihua Yang (Source: Chinese Journal of Catalysis)
Source: Chinese Journal of Catalysis - March 13, 2020 Category: Chemistry Source Type: research
Elucidating structure-performance correlations in gas-phase selective ethanol oxidation and CO oxidation over metal-doped γ-MnO2
Publication date: August 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 8Author(s): Panpan Wang, Jiahao Duan, Jie Wang, Fuming Mei, Peng Liu (Source: Chinese Journal of Catalysis)
Source: Chinese Journal of Catalysis - March 13, 2020 Category: Chemistry Source Type: research
Preface to Special Issue on Advances in Ceria Catalysis
Publication date: June 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 6Author(s): Feng Wang, Zili WuGraphical Abstract (Source: Chinese Journal of Catalysis)
Source: Chinese Journal of Catalysis - January 30, 2020 Category: Chemistry Source Type: research
A review of the interactions between ceria and H2 and the applications to selective hydrogenation of alkynes
Publication date: June 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 6Author(s): James Kammert, Jisue Moon, Zili WuAbstractCerium oxide (ceria) has found a wide variety of applications in catalysis including as a catalyst, a modifier, or a support, largely thanks to its robust redox properties and versatile acid-base function. While it is often utilized for oxidation reactions, ceria has recently attracted intense research interest for its unusual ability to selectively hydrogenate alkynes to alkenes. The intriguing hydrogenation ability of ceria has sparked renewed research efforts to understand how pure ceri...
Source: Chinese Journal of Catalysis - January 30, 2020 Category: Chemistry Source Type: research
Ceria in halogen chemistry
Publication date: June 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 6Author(s): Matthias Scharfe, Guido Zichittella, Vladimir Paunović, Javier Pérez-RamírezAbstractHalogen chemistry constitutes an essential part in the industrial production of polymers and gains increasing attention as an attractive strategy to activate light alkanes that constitute natural gas. CeO2-based catalysts offer an exciting potential for advances in hydrogen halide recovery that enables a high efficiency of halogen-based processes for activation of small molecules. This review provides an overview of recently developed ceria-base...
Source: Chinese Journal of Catalysis - January 30, 2020 Category: Chemistry Source Type: research
Electronic and geometric structure of the copper-ceria interface on Cu/CeO2 catalysts
Publication date: June 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 6Author(s): Yan Zhou, Aling Chen, Jing Ning, Wenjie ShenAbstractThe atomic structure of the active sites in Cu/CeO2 catalysts is intimately associated with the copper-ceria interaction. Both the shape of ceria and the loading of copper affect the chemical bonding of copper species on ceria surfaces and the electronic and geometric character of the relevant interfaces. Nanostructured ceria, including particles (polyhedra), rods, and cubes, provides anchoring sites for the copper species. The atomic arrangements and chemical properties of the (...
Source: Chinese Journal of Catalysis - January 30, 2020 Category: Chemistry Source Type: research
Structure-activity relationship in Pd/CeO2 methane oxidation catalysts
Publication date: June 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 6Author(s): Sara Colussi, Paolo Fornasiero, Alessandro TrovarelliAbstractPalladium based catalysts are the most active for methane oxidation. The tuning of their composition, structure and morphology at macro and nanoscale can alter significantly their catalytic behavior and robustness with a strong impact on their overall performances. Among the several combinations of supports and promoters that have been utilized, Pd/CeO2 has attracted a great attention due to its activity and durability coupled with the unusually high degree of interactio...
Source: Chinese Journal of Catalysis - January 30, 2020 Category: Chemistry Source Type: research
Influence of metal nuclearity and physicochemical properties of ceria on the oxidation of carbon monoxide
Publication date: June 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 6Author(s): Linxi Wang, Shyam Deo, Kerry Dooley, Michael J. Janik, Robert M. RiouxAbstractThe redox properties of ceria make it suitable as a catalyst or support in oxidation reactions. Ceria-supported transition metal nanoparticles or isolated single atoms provide a metal-support interface that reduces the energy cost to remove interfacial oxygen atoms, providing active oxygen species that can participate in Mars van Krevelen oxidation processes. CO oxidation is a key probe reaction to test the reducibility of ceria-supported catalysts and i...
Source: Chinese Journal of Catalysis - January 30, 2020 Category: Chemistry Source Type: research
Linear-regioselective hydromethoxycarbonylation of styrene using Ru-clusters/CeO2 catalyst
Publication date: June 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 6Author(s): Jinghua An, Yehong Wang, Zhixin Zhang, Jian Zhang, Martin Gocyla, Rafal E. Dunin-Borkowski, Feng WangAbstractHydroalkoxycarbonylation of olefins has been considered to be one of the most attractive methods to synthesize esters. Controlling the regioselectivities of linear esters (L) and branched esters (B) is a challenging project for researchers working in this reaction. Although most of the attention has been paid to control the regioselectivity through ligand design in homogeneous catalytic systems, study in the area is still l...
Source: Chinese Journal of Catalysis - January 30, 2020 Category: Chemistry Source Type: research
Selective C3-alkenylation of oxindole with aldehydes using heterogeneous CeO2 catalyst
We report herein that a commercially available CeO2 is an active and reusable catalyst for the C3-selective alkenylation of oxindole with aldehydes under solvent-free conditions. This catalytic method is generally applicable to different aromatic and aliphatic aldehydes, giving 3-alkyledene-oxindoles in high yields (87%–99%) and high stereoselectivities (79%–93% to E-isomers). This is the first example of the catalytic synthesis of 3-alkenyl-oxindoles from oxindole and various aliphatic aldehydes. The Lewis acid-base interaction between Lewis acid sites on CeO2 and benzaldehyde was studied by in situ IR. The structure-...
Source: Chinese Journal of Catalysis - January 30, 2020 Category: Chemistry Source Type: research
Lattice oxygen activation in transition metal doped ceria
Publication date: June 2020Source: Chinese Journal of Catalysis, Volume 41, Issue 6Author(s): Ya-Qiong Su, Long Zhang, Valery Muravev, Emiel J.M. HensenAbstractDensity functional theory calculations were carried out to investigate the influence of doping transition metal (TM) ions into the ceria surface on the activation of surface lattice oxygen atoms. For this purpose, the structure and stability of the most stable (111) surface termination of CeO2 modified by TM ions was determined. Except for Zr and Pt dopants that preserve octahedral oxygen coordination, the TM dopants prefer a square-planar coordination when substitu...
Source: Chinese Journal of Catalysis - January 30, 2020 Category: Chemistry Source Type: research
