A5101737379- Catalytic Processes in Materials Science
- Advanced ceramic materials synthesis
- Electrocatalysts for Energy Conversion
- Catalysts for Methane Reforming
- Catalysis and Hydrodesulfurization Studies
- Advanced materials and composites
- Aluminum Alloys Composites Properties
- Nanomaterials for catalytic reactions
- Silicon Carbide Semiconductor Technologies
- Carbon dioxide utilization in catalysis
- Boron and Carbon Nanomaterials Research
- Privacy-Preserving Technologies in Data
- Semiconductor materials and devices
- Advanced Electron Microscopy Techniques and Applications
- Thermal properties of materials
- Quantum Computing Algorithms and Architecture
- Quantum Information and Cryptography
- Face recognition and analysis
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- CO2 Reduction Techniques and Catalysts
- Supramolecular Self-Assembly in Materials
- Non-Invasive Vital Sign Monitoring
- Aerogels and thermal insulation
- Emotion and Mood Recognition
Dezhou University
2024
Kunming University of Science and Technology
2024
China University of Mining and Technology
2023
Nanchang University
2023
Xi'an Jiaotong University
2017-2022
Tongji University
2022
National Taiwan University of Science and Technology
2022
Sungkyunkwan University
2022
State Key Laboratory of Pollution Control and Resource Reuse
2022
Peking University
2018-2021
We reported here a strategy to use defective nanodiamond-graphene (ND@G) prepare an atomically dispersed metal catalyst, i.e., in the current case palladium catalyst which is used for selective hydrogenation of acetylene presence abundant ethylene. The exhibits remarkable performance conversion ethylene: high (100%), ethylene selectivity (90%), and good stability. unique structure (i.e., dispersion Pd atoms on graphene through Pd–C bond anchoring) blocks formation unselective subsurface...
Enhancing the intrinsic activity and space time yield of Cu based heterogeneous methanol synthesis catalysts through CO2 hydrogenation is one major topics in conversion into value-added liquid fuels chemicals. Here we report inverse ZrO2/Cu with a tunable Zr/Cu ratio have been prepared via an oxalate co-precipitation method, showing excellent performance for to methanol. Under optimal condition, catalyst composed by 10% ZrO2 supported over 90% exhibits highest mass-specific formation rate...
Abstract Preparation of single atom catalysts (SACs) is broad interest to materials scientists and chemists but remains a formidable challenge. Herein, we develop an efficient approach synthesize SACs via precursor-dilution strategy, in which metalloporphyrin (MTPP) with target metals are co-polymerized diluents (tetraphenylporphyrin, TPP), followed by pyrolysis N-doped porous carbon supported (M 1 /N-C). Twenty-four different SACs, including noble non-noble metals, successfully prepared. In...
The design of cheap, non-toxic, and earth-abundant transition metal catalysts for selective hydrogenation alkynes remains a challenge in both industry academia. Here, we report new atomically dispersed copper (Cu) catalyst supported on defective nanodiamond-graphene (ND@G), which exhibits excellent catalytic performance the conversion acetylene to ethylene, i.e., with high (95%), selectivity (98%), good stability (for more than 60 h). unique structural feature Cu atoms anchored over graphene...
Selective activation of chemical bonds in multifunctional oxygenates on solid catalysts is a crucial challenge for sustainable biomass upgrading. Molybdenum carbides and nitrides preferentially activate C═O C–OH over C═C C–C liquid-phase hydrogenation bioderived furfural, leading to highly selective formations furfuryl alcohol (FA) its subsequent hydrogenolysis product (2-methyl furan (2-MF)). We demonstrate that pure-phase α-MoC more active than β-Mo2C γ-Mo2N catalyzing furfural...
Mn and Na additives have been widely studied to improve the efficiency of CO2 hydrogenation valuable olefins on Fe catalysts, but their effects catalytic properties mechanism are still under vigorous debate. This study shows that Fe-based catalysts with moderate contents highly selective for olefins, together low selectivities both CO CH4 much improved space-time olefin yields compared state-of-the-art catalysts. Combined kinetic assessment quasi in situ characterizations further unveil sole...
Single-atom catalysts (SACs) have attracted broad interest recently due to their superior catalytic properties. However, a facile fabrication method for the large-scale synthesis of SACs is still in demand. This study reports mechanochemical approach mass production noble metal SACs. The successful formation atomically dispersed palladium species on zinc oxide (Pd1/ZnO) was verified by aberration-corrected high-angle annular dark-field scanning transmission electron microscopy and X-ray...
We report the syntheses of highly dispersed CoNi bimetallic catalysts on surface α-MoC based strong metal support interaction (SMSI) effect. The between nearly atomically Co and Ni atoms was observed for first time by real-space chemical mapping at atomic level. Combined with ability to split water low temperatures, as-synthesized CoNi/α-MoC exhibited robust synergistic performance hydrogen production from hydrolysis ammonia borane. metal-normalized activity 1.5Co1.5Ni/α-MoC catalyst reached...
Conversion of CO2 into fuels via solar energy would be a promising strategy to reduce emissions and produce value-added carbon compounds. However, the development efficient light-harvesting photocatalytic systems remains significant challenge because scarcity low-cost high-efficiency catalysts in conversion. Herein, tunable selectivity photothermal conversion was demonstrated over series Fe-based developed through simple hydrogenation/carbonization treatment with commercial Fe3O4 as...
Although single-atom catalysts (SACs) have been at the vanguard of energy conversion research, selection suitable substrates and specification permits remains ambiguous. Herein, we fabricated Co-g-C3N4/rGO SACs (Co-CNG) by coupling Co with a promising substrate g-C3N4/rGO. Remarkably, Co-CNG exhibits even comparable HER performance (10 mA cm–2 ∼47 mV) commercially available Pt/C ∼48 outperformed non-noble transition-metal under alkaline conditions since its mass activity is about 4 times...
Because of the structural complexity and inhomogeneity, effect coordination environment on catalytic properties is underexplored in heterogeneous systems. To address this challenge, atomically dispersed Pt anchored two Mo-based supports with similar morphology particle size, that is, face-centered cubic-structured α-MoC MoN. Spectroscopic computational investigations demonstrate atoms are coordinated N Pt/MoN but Mo Pt/α-MoC, leading to an entirely different performance oxygen reduction...
In the field of heterogeneous catalysis, transition metal carbides (TMCs) have attracted growing and extensive attention as a group important catalytic materials for variety energy-related reactions. Due to incorporation carbon atoms at interstitial sites, TMCs possess much higher density states near Fermi level, endowing material with noble-metal-like electron configuration behaviors. Crystal structure, site occupancies, surface termination, metal/carbon defects in bulk phase or are...
Electron tomography (ET) plays an important role in revealing biological structures, ranging from macromolecular to subcellular scale. Due limited tilt angles, ET reconstruction always suffers the ‘missing wedge’ artifacts, thus severely weakens further interpretation. In this work, we developed algorithm called Iterative Compressed-sensing Optimized Non-uniform fast Fourier transform (ICON) based on theory of compressed-sensing and assumption sparsity specimens. ICON can significantly...
Abstract Mn and Na additives have been widely studied to improve the efficiency of CO 2 hydrogenation valuable olefins on Fe catalysts, but their effects catalytic properties mechanism are still under vigorous debate. This study shows that Fe‐based catalysts with moderate contents highly selective for olefins, together low selectivities both CH 4 much improved space‐time olefin yields compared state‐of‐the‐art catalysts. Combined kinetic assessment quasi in situ characterizations further...
The proposed sequential recurrent convolution network (SRCN) includes two parts: one neural (CNN) and a sequence of long short-term memory (LSTM) models. CNN is to achieve the feature vector face emotion or speech command. Then, LSTM models with shared weight reflects inputs provided by (pre-trained) input sub-images spectrograms corresponding command, respectively. Simply put, SRCN for dynamic recognition (SRCN-DFER) another wireless command (SRCN-WSCR) are developed. approach not only...
Manganese(II) halides have been a new generation of optoelectronic materials due to their fascinating luminescent properties, however, lacking specific solvent-responsive analogues with high quantum efficiency. Herein, we prepared three single crystals, [Pr(MIm)2][MnBr4] ([Pr(MIm)2]2+ = 1,3-di(methylimidazolium)-propane, Compound 1), [Pr(EIm)2][MnBr4] ([Pr(EIm)2]2+ 1,3-di(ethylimidazolium)-propane, 2), and [Bu(MIm)2][MnBr4] ([Bu(MIm)2]2+ 1,4-di(methylimidazolium)-butane, 3), where different...
Electron tomography (ET) combining subsequent sub-volume averaging has been becoming a unique way to study the in situ 3D structures of macromolecular complexes. However, information missing electron due limited angular sampling is still bottleneck high-resolution application. Here, based on understanding smooth nature biological specimen, we present new iterative image reconstruction algorithm, FIRT (filtered technique) for by algebra technique (ART) and nonlinear diffusion (ND) filter...