A5065739319- Electrocatalysts for Energy Conversion
- Advancements in Battery Materials
- CO2 Reduction Techniques and Catalysts
- Supercapacitor Materials and Fabrication
- Advanced Photocatalysis Techniques
- Advanced battery technologies research
- Nanomaterials for catalytic reactions
- Ammonia Synthesis and Nitrogen Reduction
- Catalytic Processes in Materials Science
- Quantum Dots Synthesis And Properties
- Nanocluster Synthesis and Applications
- Ionic liquids properties and applications
- Graphene research and applications
- 2D Materials and Applications
- Advanced Battery Materials and Technologies
- Gold and Silver Nanoparticles Synthesis and Applications
- MXene and MAX Phase Materials
- Copper-based nanomaterials and applications
- Advanced Thermoelectric Materials and Devices
- Metal-Organic Frameworks: Synthesis and Applications
- Chalcogenide Semiconductor Thin Films
- Caching and Content Delivery
- Carbon dioxide utilization in catalysis
- ZnO doping and properties
- Perovskite Materials and Applications
City University of Hong Kong
2020-2025
City University of Hong Kong, Shenzhen Research Institute
2021-2025
Kunming Institute of Precious Metals
2020-2024
Kowloon Hospital
2020
Nanyang Technological University
2008-2019
Singapore Polytechnic
2014-2016
Jilin University
2009-2012
State Key Laboratory of Supramolecular Structure and Materials
2009-2012
Institute of Physics
1992
Abstract MoS 2 nanosheet‐coated TiO nanobelt heterostructures—referred to as @MoS —with a 3D hierarchical configuration are prepared via hydrothermal reaction. The nanobelts used synthetic template inhibit the growth of crystals along c‐axis, resulting in few‐layer nanosheet coating on nanobelts. as‐prepared heterostructure shows high photocatalytic hydrogen production even without Pt co‐catalyst. Importantly, with 50 wt% exhibits highest rate 1.6 mmol h −1 g . Moreover, such possesses...
Exploration of low-cost and earth-abundant photocatalysts for highly efficient solar photocatalytic water splitting is great importance. Although transition-metal dichalcogenides (TMDs) showed outstanding performance as co-catalysts the hydrogen evolution reaction (HER), designing TMD-hybridized with abundant active sites HER still remains challenge. Here, a facile one-pot wet-chemical method developed to prepare MS2-CdS (M=W or Mo) nanohybrids. Surprisedly, in obtained nanohybrids,...
N and S codoping of graphene is realized by a novel approach: covalent functionalization oxide using 2-aminothiophenol as source both followed thermal treatment. The resulting N- S-codoped has potential applications in high-performance lithium-ion batteries metal-free catalyst for oxygen reduction reaction. As service to our authors readers, this journal provides supporting information supplied the authors. Such materials are peer reviewed may be re-organized online delivery, but not...
Intercalation and exfoliation of lithium: Few-layer-thick inorganic nanosheets (BN, NbSe2, WSe2, Sb2Se3, Bi2Te3) have been prepared from their layered bulk precursors by using a controllable electrochemical lithium intercalation process (see picture). The conditions, such as cut-off voltage discharge current, systematically studied optimized to produce high-quality BN NbSe2 nanosheets.
A thin polymer shell helps V2O5 a lot. Short nanobelts are grown directly on 3D graphite foam as lithium-ion battery (LIB) cathode material. further coating of poly(3,4-ethylenedioxythiophene) (PEDOT) is the key to high performance. An excellent high-rate capability and ultrastable cycling up 1000 cycles demonstrated. As service our authors readers, this journal provides supporting information supplied by authors. Such materials peer reviewed may be re-organized for online delivery, but not...
Supercapacitor with ultrahigh energy density (e.g., comparable those of rechargeable batteries) and long cycling ability (>50000 cycles) is attractive for the next-generation storage devices. The carbonaceous material electrodes can be effectively improved by combining certain metal oxides/hydroxides, but many at expenses power long-time stability. To achieve an optimized overall electrochemical performance, rationally designed electrode structures proper control in oxide/carbon are highly...
A flexible cloth-like electrode, which can efficiently split water to produce H 2 at neutral pH, is successfully demonstrated.
We attempt to meet the general design requirements for high-performance supercapacitor electrodes by combining strategies of lightweight substrate, porous nanostructure design, and conductivity modification. fabricate a new type 3D thin graphite foams (GF) use as light conductive substrates growth metal oxide core/shell nanowire arrays form integrated electrodes. The core is Co3O4, shell composite conducting polymer (poly(3,4-ethylenedioxythiophene), PEDOT) (MnO2). To show advantage this...
Reduced graphene oxide-wrapped MoO3M (rGO/MoO3 ) is prepared by a novel and simple method that developed using metal-organic framework as the precursor. After two-step annealing process, obtained rGO/MoO3 composite used for high-performance supercapacitor electrode. Moreover, an all-solid-state flexible fabricated based on composite, which shows stable performance under different bending states.
Abstract: Research on two-dimensional (2D) materials has been explosively increasing in last seventeen years varying subjects including condensed matter physics, electronic engineering, science, and chemistry since the mechanical exfoliation of graphene 2004. Starting from graphene, 2D now have become a big family with numerous members diverse categories. The unique structural features physicochemical properties make them one class most appealing candidates for wide range potential...
Five-fold-twinned PtCu nanoframes (NFs) with nanothorns protruding from their edges are synthesized by a facile one-pot method. Compared to commercial Pt/C catalyst, the obtained highly anisotropic five-fold-twinned NFs show enhanced electrocatalytic performance toward oxygen reduction reaction and methanol oxidation under alkaline conditions.
Metal copper mesh with superhydrophobic and superoleophilic surface had been successfully fabricated via a facile solution−immersion process. The hierarchical structure was prepared on the commercial by etching nitric acid. After being modified 1-hexadecanethiol (HDT), as-prepared indicated both property simultaneously. This metal could then be applied for oil water mixture separation. unusual wettability of stable in corrosive conditions, such as acidic, basic, salt solutions. method...
Uniform carbon fibers evolved from bamboo chopsticks garbage are achieved by a facile hydrothermal method, exhibiting competitive electrochemical behavior with commercial graphite, or pretty high anodic performance after being optimized.
SnO2 nanowires directly grown on flexible substrates can be a good electrode for lithium ion battery. However, Sn-based (metal Sn or SnO2) anode materials always suffer from poor stability due to large volume expansion during cycling. In this work, we utilize atomic layer deposition (ALD) surface engineer nanowires, resulting in new type of hollowed SnO2-in-TiO2 wire-in-tube nanostructure. This structure has radically improved rate capability and cycling compared both bare solid SnO2@TiO2...
Inspired by the unique properties of ultrathin 2D nanomaterials and excellent catalytic activities noble metal nanostructures for renewable fuel cells, a facile method is reported high‐yield synthesis PdCu alloy nanosheets under mild conditions. Impressively, obtained nanosheet after being treated with ethylenediamine can be used as highly efficient electrocatalyst formic acid oxidation. The study implicates that rational design controlled an may open up new opportunities enhancing nanostructures.
Two‐dimensional (2D) transition metal dichalcogenide (TMD) nanosheets, such as MoS 2 , WS etc., are attracting increasing interest due to their intriguing physical, chemical, electronic, and optical properties. Success in development of methods for large‐scale production 2D TMD nanosheets composites has given great potential various novel applications. In this review, recent progress sensing applications is introduced. Moreover, different strategies signal‐transducing mechanisms devices...
Abstract Gold, silver, platinum and palladium typically crystallize with the face-centred cubic structure. Here we report high-yield solution synthesis of gold nanoribbons in 4H hexagonal polytype, a previously unreported metastable phase gold. These undergo transition from original to structure on ligand exchange under ambient conditions. Using monochromated electron energy-loss spectroscopy, strong infrared plasmon absorption single is observed. Furthermore, phases can be readily...
The crystal phase of metal nanocatalysts significantly affects their catalytic performance. Cu-based nanomaterials are unique electrocatalysts for CO2 reduction reaction (CO2RR) to produce high-value hydrocarbons. However, studies date limited the conventional face-centered cubic (fcc) Cu. Here, we report a phase-dependent behavior Cu, after successful synthesis high-purity 4H Cu and heterophase 4H/fcc using Au as templates, respectively. Remarkably, obtained unconventional structures...
Abstract Two‐dimensional (2D) organic–inorganic hybrid perovskite nanosheets (NSs) are attracting increasing research interest due to their unique properties and promising applications. Here, for the first time, we report facile synthesis of single‐ few‐layer free‐standing phenylethylammonium lead halide NSs, that is, (PEA) 2 PbX 4 (PEA=C 8 H 9 NH 3 , X=Cl, Br, I). Importantly, lateral size can be tuned by changing solvents. Moreover, these ultrathin 2D NSs exhibit highly efficient tunable...