A5032477554- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Catalysis and Hydrodesulfurization Studies
- Nanomaterials for catalytic reactions
- Electrocatalysts for Energy Conversion
- Catalysis for Biomass Conversion
- Advanced Photocatalysis Techniques
- Zeolite Catalysis and Synthesis
- Oxidative Organic Chemistry Reactions
- Catalysts for Methane Reforming
- Mesoporous Materials and Catalysis
- Copper-based nanomaterials and applications
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Caching and Content Delivery
- Ammonia Synthesis and Nitrogen Reduction
- Carbon dioxide utilization in catalysis
- Polyoxometalates: Synthesis and Applications
- Chemical Synthesis and Reactions
- Advanced oxidation water treatment
- CO2 Reduction Techniques and Catalysts
- Supercapacitor Materials and Fabrication
- MXene and MAX Phase Materials
- Gas Sensing Nanomaterials and Sensors
- Layered Double Hydroxides Synthesis and Applications
Nanjing University
2014-2025
Nanjing Library
2014
Alkali phosphates-modified NaY zeolites were developed as catalysts for efficient conversion of lactic acid to acrylic acid. The catalytic performance was optimized in terms the type and loading alkali phosphates, reaction temperature, liquid hourly space velocity, concentration. A high yield 58.4% achieved at 340 °C over 14 wt % Na2HPO4/NaY. physicochemical properties investigated by various techniques including NH3-TPD, pyridine adsorption-FTIR, Raman, MAS 31P NMR. Introduction phosphates...
A highly efficient amorphous V–P–N–C catalyst with a porous honeycomb structure is utilized for the continuous production of acrolein through glycerol dehydration.
An acrylic acid yield of 74.3% and a formation rate 12.0 mmol g<sub>cat</sub><sup>−1</sup> h<sup>−1</sup> have been achieved at 340 °C by lactic dehydration over Na<sub>2</sub>HPO<sub>4</sub>-modified NaY nanocrystallites (NaY-<italic>n</italic>) due to appropriate surface acidity together with the unique structural features NaY-<italic>n</italic>.
This study highlights the facet structure control of regular NixCo3–xO4 nanoplates and interfacial modulation through elemental doping morphologically fitted assembly Ti3C2Tx nanosheets for high performances in OER/HER overall water splitting. Over resulting Ni0.09Co2.91O4/Ti3C2Tx-HT a solution 1 M KOH, OER HER overpotentials 262 210 mV, respectively, are achievable at current density 10 mA cm–2. In case splitting by using as anode cathode catalysts, only potential 1.66 V is needed to obtain...
CuO nanostructures of different morphologies were synthesized and compared for catalytic benzene combustion. XRD patterns various nano-crystallites suggest the monoclinic structure. The dominant crystal planes are identified by means HRTEM electron diffraction. amount oxygen adspecies was found to be strongly dependent on orientation planes. activity combustion over major is: (200) > (111) (01) (001), consistent with order corresponding density terminate Cu2+ ions which both activated.
Abstract Dry reforming of methane has been systematically investigated over a series x ‐Co@SiO 2 ‐ y catalysts where is the Co particle size ranging from 11.1 to 121.3 nm while denotes silica shell thickness 6.0 21.9 nm. Various techniques including TEM, XRD, H ‐TPR/‐TPD, XPS, BET, O ‐TPO, TG, and ‐TPSR‐MS were employed characterize physicochemical properties catalysts. ‐TPR XPS results indicate that core–shell interaction dependent on core size: smaller is; stronger interaction. The...
A defect-rich In 2 O 3 electrocatalyst is highly durable and efficient for sustainable urea synthesis via co-reduction of CO /NO − under mild conditions.
A novel synthetic strategy has been adopted to deposit Au nanoparticles (NPs) (ca. 5 nm) on a hollow FeOx substrate using Au/β-FeOOH hybrid nanocrystals as the precursor. Through encapsulation of by SiO2 shells and calcination step, can be transformed into Au/FeOx with structural feature. Because protective shells, aggregation NPs is effectively prohibited, hemispherical morphology particles essentially retained. The composite obtained removing in final are small-sized yet stable enough...
On the basis of precise phase control vanadium phosphorus oxides (VPOs), nanosized TiO2 was employed as a dopant/dispersant to fabricate series VPO-TiO2 catalysts through wet mechanical co-milling process. The resulting showed outstanding durability plus excellent target products [acrylic acid (AA) + methyl acrylate (MA)] selectivity via acetic (HAc)–formaldehyde (FA) condensation. Over an optimized catalyst 20% VPO-TiO2, (AA MA) being 85% (HAc input-based) at yield level >60% (FA can be...
The Pt subnano clusters dispersed on the (110) facet of regularly shaped hexagonal Al2O3 plates were fabricated via an atomic layer deposition approach. resulting material contains loading as low 0.07 wt %; interfacial structure exhibits nearly full CO conversion for water gas shift reaction at 210 °C, and turnover frequency (TOF) is high 2.1 s–1, outperforming most systems reported. same was also found to be highly active catalytic decomposition formic acid (FA), with FA (with little...
Abstract A new type of supported vanadium phosphorus oxide (VPO) with self-phase regulation was simply fabricated (organic solvent free) for the first time by depositing specific VPO precursor NH 4 (VO 2 )HPO onto Siliceous Mesostructured Cellular Foams (MCF) controlled activation. The resulting materials were found to be highly efficient and selective sustainable acrylic acid (AA) plus methyl acrylate (MA) production via a condensation route between acetic (HAc) formaldehyde (HCHO). (AA +...
Co<sub>3</sub>O<sub>4</sub> spheroids of different texture without/with Au deposition were highly active yet very durable at 60–90 °C for CO oxidation. The calcined Co<sub>3</sub>O<sub>4</sub>-based catalysts and the yolk–shell type one even more durable. encountered obvious enhancement in oxidation activity <italic>via situ</italic> pretreatment.
A series of unsupported and supported vanadium phosphorus oxide catalysts were prepared by employing a new strategy, which significantly reduced the complexity catalyst preparation. The greatly simplified fabrication benefits greener lower-cost process for practical applications. currently fabricated systems showed ca. 90% target product(s) selectivity with promising yield as well durability.
Developing an efficient and low-cost electrocatalyst is important in energy conversion storage, while it challenging especially the oxygen evolution reaction (OER) owing to sluggish kinetic process. Hofmann-type metal–organic frameworks (MOFs) are layer-structured materials, if they synthesized form of regular-shaped slim nanosheets, a higher density exposed active sites easier electron mass transport will be expected. In current study, we prepared such type Hofmann MOFs plus Ni site tuning...
In this work, we studied how the oxidic CoMoOx/Al2O3 and sulphurated CoMoSx/Al2O3 interfacial structures determine catalytic efficiency in selective hydrodesulfurization (HDS) of dibenzothiophene (DBT). To achieve goal, first synthesized γ-Al2O3 materials unique morphologies through ionic liquid-assisted hydrothermal process under different conditions. The resulting hexagonal plates (HP) stacked (SHP) are single crystallites with dominant (1 1 0) 1)/(1 0 facet structures, respectively;...