A5053180714- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Advanced biosensing and bioanalysis techniques
- CO2 Reduction Techniques and Catalysts
- RNA Interference and Gene Delivery
- Catalytic Processes in Materials Science
- Ammonia Synthesis and Nitrogen Reduction
- Advanced battery technologies research
- Ionic liquids properties and applications
- Plasmonic and Surface Plasmon Research
- Electronic and Structural Properties of Oxides
- Electrochemical Analysis and Applications
- Bacteriophages and microbial interactions
- Gold and Silver Nanoparticles Synthesis and Applications
- Supercapacitor Materials and Fabrication
- Semiconductor materials and interfaces
- Advancements in Battery Materials
- Electronic Packaging and Soldering Technologies
- Machine Learning in Materials Science
- Nanomaterials for catalytic reactions
- Advanced Memory and Neural Computing
- Gas Sensing Nanomaterials and Sensors
- Advanced Welding Techniques Analysis
- MXene and MAX Phase Materials
- Electrodeposition and Electroless Coatings
UNSW Sydney
2019-2025
Chongqing University of Technology
2022-2024
The University of Sydney
2024
The University of Adelaide
2024
Swinburne University of Technology
2024
Monash University
2024
Northeast Petroleum University
2018-2023
Shenyang Aerospace University
2020
Kyoto University
2014-2019
Abstract Platinum is the most efficient catalyst for hydrogen evolution reaction in acidic conditions, but its widespread use has been impeded by scarcity and high cost. Herein, Pt atomic clusters (Pt ACs) containing Pt-O-Pt units were prepared using Co/N co-doped carbon (CoNC) as support. ACs are anchored to single Co atoms on CoNC forming strong interactions. Pt-ACs/CoNC exhibits only 24 mV overpotential at 10 mA cm −2 a mass activity of 28.6 A mg −1 50 mV, which more than 6 times higher...
Abstract Graphene edges exhibit a highly localized density of states that result in increased reactivity compared to its basal plane. However, exploiting this anchor and tune the electronic single atom catalysts (SACs) remains elusive. To investigate this, method Pt SACs with ultra‐low mass loadings at edge‐rich vertically aligned graphene (as low as 0.71 µg cm –2 ) is developed. Angle‐dependent X‐ray absorption spectroscopy density‐functional theory calculations reveal edge‐anchored has...
Single-atom catalysts (SACs) have shown potential for achieving an efficient electrochemical CO2 reduction reaction (CO2RR) despite challenges in their synthesis. Here, Ag2S/Ag nanowires provide initial anchoring sites Cu SACs (Cu/Ag2S/Ag), then Cu/Ag(S) was synthesized by treatment resulting complete sulfur removal, i.e., on a defective Ag surface. The CO2RR Faradaic efficiency (FECO2RR) of reaches 93.0% at partial current density (jCO2RR) 2.9 mA/cm2 under -1.0 V vs RHE, which outperforms...
Electrochemical nitrate reduction reaction (NO3–RR) offers an alternative pathway toward ambient ammonia production and nitrogen balance restoration, requiring efficient catalysts. In this study, a silver-decorated cobalt oxide (Ag–Co3O4) catalyst was shown to enhance during NO3–RR in alkaline electrolyte. Specifically, the Ag–Co3O4 delivers (NH3) yield rate of 52 μmol h–1 cm–2 with Faradaic efficiency 88% at −0.32 V versus RHE. The activity is 6 times higher than that conventional Co3O4...
Abstract The integration of graphene and metal–organic frameworks (MOFs) has numerous implications across various domains, but fabricating such assemblies is often complicated time‐consuming. Herein, a one‐step preparation graphene‐MOF assembly presented by directly impregnating vertical (VG) arrays into the zeolitic imidazolate framework (ZIF) precursors under ambient conditions. This approach can effectively assemble multiple ZIFs, including ZIF‐7, ZIF‐8, ZIF‐67, resulting in their uniform...
Abstract 3D Bi 2 O 3 fractal nanostructures (f‐Bi ) are directly self‐assembled on carbon fiber papers (CFP) using a scalable hot‐aerosol synthesis strategy. This approach provides high versatility in modulating the physiochemical properties of catalyst by tailorable control its crystalline size, loading, electron density as well providing exposed stacking nanomaterials porous CFP substrate. As result, when tested for electrochemical CO reduction reactions (CO RR), these f‐Bi electrodes...
In this study, we propose a top-down approach for the controlled preparation of undercoordinated Ni-Nx (Ni-hG) and Fe-Nx (Fe-hG) catalysts within holey graphene framework, electrochemical CO2 reduction reaction (CO2RR) to synthesis gas (syngas). Through heat treatment commercial-grade nitrogen-doped graphene, prepared defective which was then used as platform incorporate single atoms via carbon defect restoration, confirmed by range characterization techniques. We reveal that these Ni-hG...
Industrial wastewater containing large amounts of organic pollutants is a severe threat to the environment and human health. Thus, rapid detection removal these from are essential protect public health ecological environment. In this study, multifunctional reusable surface-enhanced Raman scattering (SERS) substrate by growing Ag nanoparticles (NPs) on ZnO nanorods (NRs) was produced for detecting degrading Rhodamine B (RhB) dye. The ZnO/Ag exhibited excellent sensitivity, limit (LOD) RhB as...
Reconstructing a catalyst with tunable properties is essential for achieving selective electrochemical CO2 reduction reaction (CO2RR). Here, reduction–oxidation–reduction (ROR) treatment devised to advisedly reconstruct copper nanoparticles on vertical graphene. Undercoordinated sites and oxygen vacancies constructed the Cu active during ROR enhance CO2RR activity. Moreover, by varying oxidation potential while maintaining treatment, selectivity can be tuned between *COOH- *OCHO-derived...
Abstract The co‐electroreduction of CO 2 and NO x ⁻ (NO 3 ⁻/NO ⁻) to generate formamide (HCONH ) offers an opportunity for downstream chemical polymer manufacturing decarbonization; however, significant challenges lie in the C‒N coupling associated low product selectivity. Herein, p ‐block metal oxides are incorporated copper provide more accessible active sites reactant adsorption activation, tuning reaction selectivity toward production. Through situ Raman synchrotron‐based infrared...
Abstract Electrochemical biomass oxidation coupled with hydrogen evolution offers a promising route to generate value‐added chemicals and clean energy. The complex adsorption behavior of 5‐hydroxymethyl furfural (HMF) hydroxyl ions (OH − ) on the electrocatalyst surface during HMF electrooxidation reaction (HMFOR) necessitates an in‐depth understanding active sites available for adsorption. Herein, oxygen vacancy (V O defects are introduced in NiFe layered double hydroxide (LDH) using Ce...
Abstract Defective 3D vertical graphene (VG) with a relatively large surface area, high defect density, and increased electrons is synthesized via scalable plasma enhanced chemical vapor deposition method, together postsynthesis Ar‐plasma treatment (VG‐Ar). Subsequently, Cu@Cu x O nanoparticles are deposited onto VG‐Ar (Cu/VG‐Ar) through galvanostatic pulsed electrodeposition method. These nanocatalyst systems exhibit superior electrochemical CO 2 reduction performance when compared to...
Abstract Oxide‐derived Cu catalysts from 2 O microcrystals are capable of electrochemically converting CO into various value‐added chemicals. However, their structural transformation and associated preferred products remain unclear, requiring further investigation. Herein, with controllable low‐ high‐index facets exposure fabricated to differentiate the effects initial exposed on reconstruction product selectivity in electrochemical reduction reaction. Combined situ characterizations...
Engineering the metal–carbon heterointerface has become an increasingly important route toward achieving cost-effective and high-performing electrocatalysts. The specific properties of graphene edge sites, such as high available density states extended unpaired π-bonding, make it a promising candidate to tune electronic metal catalysts. However, date, understanding leveraging edge–metal catalysts for improved electrocatalytic performance remains largely elusive. Herein, edge-rich vertical...
Electrochemical generation of hydrogen peroxide (H2 O2 ) is an attractive alternative to the energy-intensive anthraquinone oxidation process. Metal-free carbon-based materials such as graphene show great promise efficient electrocatalysts in alkaline media. In particular, edges possess superior electrochemical properties than basal plane. However, identification and enhancement catalytically active sites at remain challenging. Furthermore, control surface wettability enhance gas diffusion...
Ni-rich layered ternary cathodes (i.e., LiNixCoyMzO2, M = Mn or Al, x + y z 1 and ≥ 0.8) are promising candidates for the power supply of portable electronic devices electric vehicles. However, relatively high content Ni4+ in charged state shortens their lifespan due to inevitable capacity voltage deteriorations during cycling. Therefore, dilemma between output energy long cycle life needs be addressed facilitate more widespread commercialization modern lithium-ion batteries (LIBs). This...
The electrochemical carbon dioxide reduction reaction (CO2RR) provides a green avenue for decarbonizing the conventional chemical industries. Here, structure–selectivity relationship of catalysts is pivotal control highly selective and active CO2RR pathway. We report fabrication an oxygen‐substituted C2N as metal‐free catalyst (O‐C2N) CO2‐to‐CO conversion with tunable O microenvironment. Combined spectroscopic analysis reveals fine tailored N‐C‐O moiety in O‐C2N, where C‐O‐C species (e.g....
The electrochemical carbon dioxide reduction reaction (CO2RR) provides a green avenue for decarbonizing the conventional chemical industries. Here, structure-selectivity relationship of catalysts is pivotal control highly selective and active CO2RR pathway. We report fabrication an oxygen-substituted C2N as metal-free catalyst (O-C2N) CO2-to-CO conversion with tunable O microenvironment. Combined spectroscopic analysis reveals fine tailored N-C-O moiety in O-C2N, where C-O-C species (e.g....
Amidst these growing sustainability concerns, producing NH