Showing papers in "Journal of Catalysis in 2018"

TL;DR: In this paper, a rice crust-like structure was achieved through the uniform distribution of TiO2 nanoparticles on MXene Ti3C2 through calcination method and a unique rice crustlike structure of the prepared samples rendered the composite with large population of the surface active sites.

TL;DR: In this article, a Z-scheme photocatalytic system was proposed for the photodegradation of ciprofloxacin (CIP) under visible light irradiation.

TL;DR: In this article, the interfacial and surface properties of Bi metal@defective BiOBr were optimized to understand the SPR effect of bi metal and the oxygen vacancies (OVs) formed in situ.

TL;DR: In this article, the photocatalytic performance of CuInS2-ZnS (CIZS) nanospheres with nanoporous structures for degrading the NO poisonous gas was investigated.

TL;DR: In this article, the electronic structure of porous carbon materials was tuned by doping different types and contents of fluorine species, and the resulting F-doped porous carbon (FPC) catalysts exhibited good H 2 O 2 selectivity of 97.5-83.0% and the H 2 o 2 production rate could reach 112.6-792.

TL;DR: In this paper, the authors study C2N/WS2 van der Waals heterostructure as a possible photocatalyst for water splitting and find that band edges of the heterostructures satisfy both water oxidation and reduction energy levels, ensuring the occurrence of these two reactions.

TL;DR: In this paper, a supported cobalt catalyst with atomically dispersed Co-N x sites (3.5wt% Co) was synthesized by hydrolysis of tetramethyl orthosilicate (TMOS) in a Zn/Co bimetallic zeolitic imidazolate framework (BIMZIF(Co,Zn)), followed by high-temperature pyrolysis and SiO 2 leaching.

TL;DR: In this article, the Fe-doped NiO mesoporous nanosheets array on Ni foam with different Fe dopant content (Fex%-NiO/NF) was synthesized by a facile solvothermal synthesis in mixed solvents of deionized water and methanol and subsequent anneal in air.

TL;DR: In this article, the authors investigated mechanistic and micro-kinetic aspects of the catalytic system for CO 2 hydrogenation and showed that indium oxide is a highly effective catalyst for methanol synthesis.

TL;DR: In this article, density functional theory plus U (DFT+U) calculations are employed to evaluate the OER thermodynamics after introducing bivalent Co 2+ or trivalent Co 3+ and consequent sites sensitivity in NiFe-LDH catalyst.

TL;DR: In this paper, the authors used the stretching frequencies and adsorption energies of CO bound to Pt as a fingerprint of the specific structure of the stable Ptiso species and compared the properties of single-atom Pt catalysts and sub-nanometer Ptmetal and Ptox clusters.

TL;DR: In this paper, a double Z-scheme photocatalytic mechanism was proposed for the photodegradation of levofloxacin (LVF) under visible light irradiation.

TL;DR: In this article, a self-doped mesostructured nanosheets heterojunctions (Ti3+-TiO2/Meso-g-C3N4) have been prepared via calcination-sonication assisted method using amino cyanamide as precursors, combined with a solid-state chemical reduction method.

TL;DR: In this paper, a series of bifunctional catalysts contained indium-zirconium composite oxides with different In:Zr atomic ratios and SAPO-34 zeolite, which can achieve a selectivity for C2 −C4= as high as 65-80% and that for C 2 −C 4 of 96% with only about 2.5% methane among the hydrocarbon products at CO2 conversion of 15-27%.

TL;DR: In this article, MoO3 nanowires were easily decorated with well-dispersed bimetallic Au-Pd alloyed nanoparticles (AuPd NPs) by a two-step wet-chemical strategy (hydrothermal and chemical reduction).

TL;DR: In this paper, the crystalplane-dependent electrocatalytic activity of NiCo2O4 crystals was investigated by combining experimental studies and theoretical calculations for the first time, and it was revealed that NiCo 2O4 nanosheet exposing {1, 1, 0, 0} crystal planes shows higher catalytic activity for both hydrogen evolution reaction (HER) and oxygen evolution reaction(OER) in alkaline electrolyte.

TL;DR: In this article, the strong electronic metal-support interactions (EMSI) between Pt and NR-CeO2 with the abundant surface oxygen vacancy, resulting in the enhanced electronic density of Pt nanoparticles.

TL;DR: In this paper, the authors compared the performance of three types of catalysts for CO2 methanation: CeO2 rods, cubes and octahedra supported catalysts.

TL;DR: In this article, a series of Pd-doped Cu-ZnO catalysts with tunable Pd loading by using a facile polyol reduction method for a deep study of the promotion effect of PD.

TL;DR: Using inorganic-organic MoO42/aniline-pyrrole (MoO42−-Polymer) hybrid nanospheres as precursors, the authors in this article synthesize the porous core-shell N-doped Mo2C@C nanosphere with the three advantages including porous nanostructures, conductive substrate and Ndoping, which may maximize the activity of electrocatalysts for hydrogen evolution reaction (HER).

TL;DR: In this article, Ru nanoparticles with a mean size of 4.4 nm were used as a support to activate and oxidize the 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) without addition of any base additives.

TL;DR: In this article, the acid properties of Pd/NaZSM-5 catalyst were adjusted by a NH 4 + ion exchange process to post-generate Bronsted acid sites and different preparation methods were investigated.

TL;DR: In this paper, an Ag3PO4-modified BiVO4 electrode was prepared on an FTO substrate and used as a photoanode for photoelectrocatalytic degradation of organic contaminants.

TL;DR: In this paper, the authors developed an indirect access to NiCoMo sulfides supported by nickel foam (CoMoO-S/NF) with one dimensional (1 D) and hierarchical nanostructures.

TL;DR: A series of metal oxide confined titania nanotubes (M/TNT) catalytic formulations were successfully synthesized using hydrothermal method followed by wet impregnation technique.

TL;DR: In this article, XRD, TEM, Raman, FT-IR, XPS, H2 TPR, and NH3 TPD have been used to identify SO42−/Fe2O3 catalysts as the form of hematite α-Fe 2O3.

TL;DR: In this article, two series of Zn-ZSM-5 catalysts were prepared by ion exchanging two commercial zeolites with different Si/Al ratios (40 and 15) with increasing Zn loadings.

TL;DR: In this paper, selective reduction of benzaldehyde to benzyl alcohol (model reaction for low-temperature stabilization of bio-oil) on C-supported Pt, Rh, Pd, and Ni in aqueous phase was conducted using either H2 (thermal catalytic hydrogenation, TCH) or hydrogen generated in situ electrocatalytically (electrocatalytic hydrogenization, ECH).

TL;DR: In this paper, the authors examine direct synthesis on AuxPd1 clusters to better understand the reasons for the high H2O2 selectivities of these materials and provide useful information on the significance of electronic effects in these auxiliary catalysts and may guide the design of increasingly selective bimetallic catalysts.

TL;DR: In this article, the effect of the active species for selective oxidation of aromatic alcohols was proved to follow the order of h+ ǫ+ O2−+ O 2−