A5048710212- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Crystallography and molecular interactions
- Carbon dioxide utilization in catalysis
- Metal complexes synthesis and properties
- Organometallic Complex Synthesis and Catalysis
- Magnetism in coordination complexes
- Nanomaterials for catalytic reactions
- Catalysis for Biomass Conversion
- Asymmetric Hydrogenation and Catalysis
- Inorganic Chemistry and Materials
- Metalloenzymes and iron-sulfur proteins
- Metal-Organic Frameworks: Synthesis and Applications
- Mesoporous Materials and Catalysis
- Catalysis and Hydrodesulfurization Studies
- Electrocatalysts for Energy Conversion
- CO2 Reduction Techniques and Catalysts
- Inorganic Fluorides and Related Compounds
- Nanocluster Synthesis and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Organometallic Compounds Synthesis and Characterization
- nanoparticles nucleation surface interactions
Fujian Institute of Research on the Structure of Matter
2016-2025
Chinese Academy of Sciences
2016-2025
University of Chinese Academy of Sciences
2024
Fuzhou University
2015-2018
The insufficient catalytic stability of Cu-based catalysts is still its bottleneck in industrial application, and it widely studied how to synthesize highly stable catalysts. Herein, we have developed a MOF-derived preparation robust Cu/SiO2 catalyst for the efficient hydrogenation dimethyl oxalate (DMO) ethylene glycol (EG). sol–gel method was used situ load HKUST-1 into SiO2 support with only copper loading 7.83%. advantages are that species could escape from severe coating by silica...
Five different strategies to enhance the stability of Cu-based catalysts for hydrogenation C–O bonds are summarized in this review.
What should people do with the huge amount of CO2 captured? to CO is a promising way for using carbon resources because one component syngas production many important synthesis intermediates such as dimethyl oxalate (DMO). Hydrogenation DMO provides an economical and eco-friendly approach methyl glycolate, ethylene glycol (EG), ethanol, which often determined by reaction conditions catalysts different active sites. Thus, or EG also carrier utilization product. Also, hydrogenation...
Rh substituted-La2B2O7 (B = Zr or Ti) composite oxides were synthesized and applied in the dry reforming of methane (DRM) reaction. The characterizations XRD, Raman, UV–vis diffuse reflectance, HRTEM, HAADF-STEM, situ DRIFTS, XAFS XPS, TPR tests DRM reaction have shown that degree substitution catalytic performance depend on composition La2B2O7 Ti). It is found almost all species substituted over compact Rh-LZO while a part Ti, rest existed form Rh2O3 surface loose Rh-LTO. CH4 was prone to...
Quantum-confined CsPbBr3 nanoplatelets (NPLs) with narrow full width at half-maximum (FWHM), large exciton binding energies, and precisely tunable thickness have become one of the promising materials for lighting display. Still, synthesis NPLs high photoluminescence (PL) intensity excellent stability is challenging, hindering their large-scale application in devices. Herein, we present a facile post-treatment strategy to enhance PL performance by surface passivation ZnBr2 solution. The...
The electronic and geometric robustness of active sites in catalysts determines their long-term efficiency CO2 hydrogenation. One effective strategy to improve durability is rationalizing metal site charge distribution through strong metal–support interactions (SMSIs). We propose an approach that can modulate the SMSI between Pd CeO2 by doping chlorine anions into lattice. developed Pd@CeOCl/CeO2 catalyst exhibits sustainable activity (3150 mmol·gPd–1·h–1) CO selectivity (99.7%) for at least...
In this work, we report a new heterogeneous catalyst for the methoxycarbonylation of epoxyethane (EO) to methyl 3-hydroxypropanoate (3-HPM), achieving good yields and recyclability up three times with no obvious loss in catalytic activity. The catalysts were prepared through an effective strategy anchor active cobalt carbonyl species functionalized silica-based molecular sieves. successful grafting functional ligand cluster was evident 29Si-MAS NMR FT-IR studies. Furthermore, situ study...
Oxidative coupling of toxic pollutant CO to form the platform raw chemical material dimethyl oxalate (DMO) has been industrialized however catalytic mechanism unknown so far. The reaction oxidative DMO on a Pd(111) surface investigated using density functional theory (DFT) and in situ diffuse reflectance infrared (DRIR) spectroscopy. DFT calculations DRIRS measurements indicate that two co-adsorbed intermediates COOMe OCCO, initiate reaction. C-C occurs earlier due low barrier small steric...
Fujian Institute of Research on the Structure Matter, Chinese Academy Sciences has achieved industrialization first generation catalysts for coal to ethylene glycol time in 2009. However, there are still lots aspects be improved, such as high noble metal loading and toxic Cr catalyst ester hydrogenation. To improve catalysts, we have done systematic deep research about nanostructures revealed facet effect, size synergistic support so on. A series preparation technologies been developed...
The hydrothermal reaction of the versatile ligand 5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one (Hmtpo), and cobalt/nickel acetate afforded two isostructural Co(II) Ni(II) frameworks [M(mtpo)2(H2O)]n (M = Co (1Co) or Ni (2Ni)). Both them consist heterochiral helical meshes fused together into a non-interpenetrated lvt topological network containing only planar four-coordinate nodes. can be rationalized to rare 6-c crs net if water-donated hydrogen-bonds are considered. Two isomorphous...
Abstract The NaY zeolites were prepared by hydrothermal synthesis method. influence of zeolite calcined at different temperatures as carriers for Rh/NaY catalysts on the hydroformylation formaldehyde was investigated. physical and chemical properties their performance characterized in details. When 400–700 °C, crystal structure morphology kept unchanged within this range calcination temperature. However, surface crystallinity area reduced with increasing temperature due to partially...
β-cyclodextrin (β-CD) was used to prepare remarkable and stable copper-based catalysts for hydrogenation of dimethyl oxalate (DMO) ethylene glycol (EG). The DMO conversion (95.6% vs. 99.9%), EG selectivity (53.6% 97.4%) lifetime (25 h 200 h) were significantly increased on the 0.2CD-Cu-SiO2 sample compared with Cu-SiO2 at 190 °C. prominent catalytic property due significant roles regulate surface dispersion copper species along their particle sizes, namely improved phyllosilicate morphology,...
A low-cost and stable Cu/SiO2 catalyst with a commercial SiO2 sphere support was designed prepared for vapor-phase hydrogenation of dimethyl oxalate (DMO) to ethylene glycol (EG). By simply thermal pretreatment before ion exchange, the catalytic performance long-term stability optimized O-IE-Cu/SiO2 are dramatically improved. DMO conversion 100% an EG selectivity 96% were obtained at 185 °C over 450 h. Characterization revealed that remarkably enhanced could be attributed high Cu atom...
Abstract The silver complex Ag(PPh 3 ) 2 (H TMT) ( 1 )(H TMT = 2,4,6‐trimercapto‐1,3,5‐triazine) has been synthesized and characterized. ligand trimercaptotriazine exhibits a novel coordination mode the shows special hydrogen bonding linkage in crystal packing. colorless crystals of exhibit broad emission visible region at room temperature. TDDFT calculation indicated that π–π attraction is crucial for fluorescence title complex.
Abstract Preferential oxidation of the H 2 impurity in CO streams is crucial for catalytic conversion into ethylene glycol. It uncertain as to whether can overthrow dominance and finally lead reaction. Not only this a typical research issue, but it also extremely critical practical applications. So far, no catalyst has shown selectivity higher than 50 % owing competitive adsorption CO. In work, we report PdCl x ‐based that readily overcome challenge mentioned above. Over catalyst, promoted...