A5084871002- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- ZnO doping and properties
- Catalytic Processes in Materials Science
- CO2 Reduction Techniques and Catalysts
- Advancements in Battery Materials
- Electrocatalysts for Energy Conversion
- Nanocluster Synthesis and Applications
- Advanced Battery Materials and Technologies
- Chemical Looping and Thermochemical Processes
- Ammonia Synthesis and Nitrogen Reduction
- Advanced Nanomaterials in Catalysis
- Electronic and Structural Properties of Oxides
- Catalysts for Methane Reforming
- Quantum Dots Synthesis And Properties
- Semiconductor materials and devices
- Solar-Powered Water Purification Methods
- Synthesis and properties of polymers
- Chemical Synthesis and Characterization
- Extraction and Separation Processes
- Chalcogenide Semiconductor Thin Films
- Inorganic Chemistry and Materials
- MXene and MAX Phase Materials
- Advanced battery technologies research
- Ionic liquids properties and applications
National Yang Ming Chiao Tung University
2020-2025
Research Center for Applied Science, Academia Sinica
2024
Abstract Near infrared energy remains untapped toward the maneuvering of entire solar spectrum harvesting for fulfilling nuts and bolts hydrogen production. We report use Au@Cu 7 S 4 yolk@shell nanocrystals as dual-plasmonic photocatalysts to achieve remarkable production under visible near illumination. Ultrafast spectroscopic data reveal prevalence long-lived charge separation states both excitation. Combined with advantageous features nanostructures, achieves a peak quantum yield 9.4% at...
Abstract Structural engineering has proven effective in tailoring the photocatalytic properties of semiconductor nanostructures. In this work, a sophisticated double‐hollow yolk@shell nanostructure composed plasmonic, mobile, hollow Au nanosphere (HGN) yolk and permeable, CdS shell is proposed to achieve remarkable solar hydrogen production. The thickness HGN@CdS finely adjusted from 7.7, 18.4 24.5 nm investigate its influence on performance. Compared with pure HGN, CdS, physical mixture HGN...
To further explore the substituent group effect on charge-transfer ability of phenylacetylene molecules bonding to different Cu2O surfaces, particularly halide-substituted phenylacetylenes, photocatalytic activity properties cubes, octahedra, and rhombic dodecahedra functionalized with 1-ethynyl-4-fluorobenzene (4-FA), 1-chloro-4-ethynylbenzene (4-CA), 1-bromo-4-ethynylbenzene (4-BA) were examined. The inert cubes showed largest enhancement 4-BA decoration, while 4-FA-modified exhibited...
Cu2O rhombic dodecahedra, octahedra, and cubes were densely modified with conjugated 4-ethynylaniline (4-EA) for facet-dependent photocatalytic activity examination. Infrared spectroscopy affirms bonding of the acetylenic group 4-EA onto surface copper atoms. The photocatalytically inactive showed surprisingly high toward methyl orange photodegradation after modification, while already active dodecahedra octahedra exhibited a enhancement. Electron, hole, radical scavenger experiments prove...
Semiconductor crystals have generally shown facet-dependent electrical, photocatalytic, and optical properties. These phenomena been proposed to result from the presence of a surface layer with bond-level deviations. To provide experimental evidence this structural feature, synchrotron X-ray sources are used obtain diffraction (XRD) patterns polyhedral cuprous oxide crystals. Cu2 O rhombic dodecahedra display two distinct cell constants peak splitting. Peak disappearance during slow...
Inert Cu 2 O cubes become photocatalytically active with 2E-6-MN functionalization. The molecule-derived bands within the band gap of and charge density distribution over molecule contribute to photocatalytic activity appearance.
4-Trifluoromethylphenylacetylene-functionalized Cu 2 O cubes and rhombic dodecahedra show greatly enhanced photocatalytic activity from surface band structure change. The modified can photocatalyze arylboronic acid hydroxylation reactions.
A cost-effective chemical prelithiation solution, which consists of Li
Inert Cu 2 O cubes become a superior photocatalyst after surface functionalization with 4-nitrophenylacetylene. This modification changes the band structure to facilitate electron transfer molecules.
Abstract Atomic Ag cluster bonding is employed to reinforce the interface between PF3T nano‐cluster and TiO 2 nanoparticle. With an optimized loading (Ag/TiO = 0.5 wt%), atoms will uniformly disperse on thus generating a high density of intermediate states in band gap form electron channel terthiophene group hybrid composite (denoted as T@Ag05‐P). The former expands photon absorption width latter facilitates core‐hole splitting by injecting excited (from excitons PF3T) into conduction (CB) ....
Examination of facet effects metal oxide crystals towards oxygen reduction reaction (ORR) is inadequately investigated due to the availability polyhedra exposing exclusively different surfaces. Here cuprous cubes,...
Abstract This study employs a chemically controlled strategy to construct few‐atomic‐layer ZnO structure integrated with polyvinylpyrrolidone (PVP) and nanoscale metallic copper on active carbon. Hydrogen‐bond interactions from PVP's N‐vinylpyrrolidone allow retain specific proportion of metal atoms, confining electrons at the Cu/ZnO interface form CuZn nanoalloy clusters. The nanoalloy's dual role in promoting CO adsorption C─C coupling synergistically boosts C 2 H 4 production during...
Inert Cu 2 O cubes become highly active toward dye photodegradation after 4-cyanophenylacetylene functionalization as shown from the emergence of a 4-CNA-derived band in gap. Functionalization also boosts photocatalytic arylboronic acid hydroxylation.
A hybrid composite of organic-inorganic semiconductor nanomaterials with atomic Au clusters at the interface decoration (denoted as PF3T@Au-TiO2 ) is developed for visible-light-driven H2 production via direct water splitting. With a strong electron coupling between terthiophene groups, atoms and oxygen heterogeneous interface, significant injection from PF3T to TiO2 occurs leading quantum leap in yield (18 578 µmol g-1 h-1 by ≈39% compared that without (PF3T@TiO2 , 11 321 ). Compared pure...
Recently, all-solid-state sodium batteries (Na-ASSBs) have received increased interest owing to their high safety and potential of energy density. The Na-ASSBs based on superionic conductor (NASICON)-structured Na3 V2 (PO4 )3 (Na3 VP) cathodes been proven by capacity a long cycling stability closely related the microstructural evolution. However, detailed kinetics electrochemical processes in is still unclear. In this work, sodiation/desodiation process VP first investigated using situ...
Single atom decoration can modify the electronic properties, making TaSi 2 N 4 suitable for spintronics and turning VSi into a half-metal semiconductor. These findings have potential applications in advanced devices.
Dynamic Evolution In article number 2301490, Wen-Wei Wu and co-workers successfully investigate the structural evolution during sodiation/desodiation processes in Na3V2(PO4)3-based all-solid-state sodium batteries by situ TEM. The intermediate Na2V2(PO4)3 phase with P21/c space group reduce lattice mismatch between Na3V2(PO4)3 NaV2(PO4)3, preventing collapse. Based on density functional theory calculation, Na+ ion migrates more rapidly structure, which facilitates desodiation sodiation...
Atomic Ag clusters bonding is employed to reinforce the interface between PF3T nano-cluster and TiO2 nanoparticle. With an optimized loading (Ag/TiO2 = 0.5 wt%), atoms will uniformly disperse on thus generate a high density of intermediate states in band gap form electron channel terthiophene group hybrid composite (denoted as T@Ag05-P). The former expands photon absorption width later facilitates core-hole splitting via injecting excited (from excitons PF3T) conduction (CB) TiO2. These...
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Converting CO2 waste into valuable chemicals through hydrogenation is promising for reducing atmospheric and promoting sustainable carbon recycling. Supported Pd catalysts are commonly studied methanation, yet the pivotal role of interfacial species remains unclear due to ambiguous experimental results, impeding further catalyst enhancements. This study uses theoretical calculations explore how sites influence catalytic performance in Pd-PdOx@TiO2 during methanation. Our findings show that...