A5020630816- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- MXene and MAX Phase Materials
- Advanced Sensor and Energy Harvesting Materials
- Fuel Cells and Related Materials
- Photonic Crystals and Applications
- Advancements in Battery Materials
- Conducting polymers and applications
- Advanced Battery Materials and Technologies
- High-Velocity Impact and Material Behavior
- Advancements in Solid Oxide Fuel Cells
- Microstructure and mechanical properties
- Photonic and Optical Devices
- Semiconductor materials and devices
- Advanced Photocatalysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Aluminum Alloys Composites Properties
- Perovskite Materials and Applications
- Electronic and Structural Properties of Oxides
- Nanowire Synthesis and Applications
- GaN-based semiconductor devices and materials
- Plasmonic and Surface Plasmon Research
- Quantum Dots Synthesis And Properties
- Energetic Materials and Combustion
Anhui University
2018-2025
Harbin Institute of Technology
2024
Nanjing University of Science and Technology
2021-2024
Ministry of Industry and Information Technology
2024
City University of Hong Kong
2020-2023
Hangzhou Dianzi University
2023
Shanxi University
2022-2023
Hong Kong Polytechnic University
2017-2023
Jiangxi Normal University
2009-2023
Hong Kong Science and Technology Parks Corporation
2023
Demonstrated here is the correlation between atomic configuration induced electronic density of single-atom Co active sites and oxygen reduction reaction (ORR) performance by combining density-functional theory (DFT) calculations electrochemical analysis. Guided DFT calculations, a MOF-derived catalyst with optimal Co1 -N3 PS moiety incorporated in hollow carbon polyhedron (Co1 PS/HC) was designed synthesized. PS/HC exhibits outstanding alkaline ORR activity half-wave potential 0.920 V...
Abstract The modulation effect has been widely investigated to tune the electronic state of single‐atomic M‐N‐C catalysts enhance activity oxygen reduction reaction (ORR). However, in‐depth study is rarely reported for isolated dual‐atomic metal sites. Now, catalytic activities Fe‐N 4 moiety can be enhanced by adjacent Pt‐N through effect, in which acts as modulator 3d orbitals active site and optimize ORR activity. Inspired this principle, we design synthesize electrocatalyst that comprises...
Stretchable micropower sources with high energy density and stability under repeated tensile deformation are key components of flexible/wearable microelectronics. Herein, through the combination strain engineering modulation interlayer spacing, freestanding lightweight MXene/bacterial cellulose (BC) composite papers excellent mechanical a electrochemical performance first designed prepared via facile all-solution-based paper-making process. Following simple laser-cutting kirigami patterning...
Tip-induced dendrites on metallic zinc anodes (MZAs) fundamentally deteriorate the rechargeability of aqueous Zn metal batteries (ZMBs). Herein, an intriguing ion sieve (IS) consisting 3D intertwined bacterial cellulose, deposited surface MZAs (Zn@IS) through in situ self-assembly route, is first presented to be effective inhibiting dendrite-growth MZAs. Experimental analyses together with theoretical calculations suggested that IS coating can facilitate desolvation [Zn(H2O)6]2+ clusters via...
Micro-supercapacitors are notorious for their low energy densities compared to micro-batteries. While MXenes have been identified as promising capacitor-type electrode materials alternative zinc-ion hybrid micro-supercapacitors (ZHMSCs) with higher density, tightly spaced layered structure renders multivalent zinc-ions large radii intercalation inefficient. Herein, through insertion of 1D core-shell conductive BC@PPy nanofibers between MXene nanosheets, an interlayer engineering technique...
Poor oxygen diffusion at multiphase interfaces in an air cathode suppresses the energy densities of zinc-air batteries (ZABs). Developing effective strategies to tackle issue is great significance for overcoming performance bottleneck. Herein, inspired by bionics diving flies, a polytetrafluoroethylene layer was coated on surfaces Co3 O4 nanosheets (NSs) grown carbon cloth (CC) create hydrophobic surface enable formation more three-phase reaction and promoted diffusion, rendering...
Abstract Texturing metallic zinc anodes (MZAs) for selective exposure of (002) Zn plane with high thermodynamical stability is an efficient scheme dendrite‐free electrodeposition. However, fundamental factors that influence deposition morphology via surface crystallographic texture engineering are not well understood. Herein, different from traditional cognition, MZAs preferential (101) facet demonstrated to be equally effective in promoting deposition, which enabled by introducing trace...
Abstract Insufficient and unstable energy output is the bottleneck issue radically restricting application of micro‐supercapacitors (MSCs). Herein, an interlayer atom injection strategy that can anchor low‐valence Zn atoms (Zn δ + , 0 < <2) on O‐terminals Ti 3 C 2 T x (MXene) flakes within MXene/silver‐nanowires hybrid cathode symmetric MSCs first presented. Combining polyacrylamide/ZnCl hydrogel electrolyte rich in Cl − 2+ ions, matched /Zn (−0.76 V vs SHE) Ag/AgCl (0.23 SHE), redox...
Abstract The iodine (I) electrode involving two‐electron transfer chemistry by converting between I + and − , has the potential to deliver theoretically doubled capacity higher working voltage platforms, thus achieving energy density. However, owing slow kinetics of cascade reactions, system suffers from large overpotentials low power density, especially at high currents temperatures. Here, an inverse‐opal‐structured cobalt sulfide@nitrogen‐doped‐carbon (Co 9 S 8 @NC) catalyst with unique...
Polycrystalline Co9S8 nanotubes were successfully fabricated by using Co(CO3)0.35Cl0.20(OH)1.10 nanorod bunches as sacrificial hard templates through a hydrothermal route. The samples characterized means of XRD, XPS, SEM and TEM. formed due to the nanoscale Kirkendall effect, which can be explained difference in diffusion rates between cobalt source sulfur ion. Magnetic measurements indicate that show paramagnetic property instead ferromagnetic property, attributed tiny sizes component...
A high performance photonic anti-counterfeiting watermark that can be incorporated into banknotes has been developed by combining a novel invisible printing with flexible, translucent and ultra-thin magnetic-responsive display film. The latent colourful patterns are lithographically printable magnetically responsive, easily perceived the naked eye under magnetic fields. In addition, distinct differences of spectral characteristics between invisible-form visible-form accurately detected using...
Ag nanoparticles with average sizes of 20 nm were well-dispersed on the surfaces Fe3O4@SiO2 composite microspheres through a simple wet-chemical method employing Ag-mirror reaction. The as-synthesized Ag-coated three-ply are monodisperse and bifunctional, ferromagnetic surface-enhanced Raman scattering (SERS) properties. products characterized by means X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM), energy dispersive analysis (EDX). SERS signals typical...
Herein, based on the recently developed magnetic-induced self-assembly techniques, we designed a novel, simple and low-cost method to fabricate special class of photonic crystals with double band-gap hetero-structures, eventually achieved purpose modulating optical diffraction color structural colors. The greatly simplifies fabrication multiple hetero-structures extends modulation means Furthermore, it is worth noting that due resulting colors are derived from consisting peaks presenting...
Planar all-solid-state rechargeable Zn–air batteries with superior energy efficiency demonstrate a novel design for compact ZABs towards next-generation wearable storage devices high density and safety.
An easily manipulated protocol for patterning of MXenes on commercial printing paper planar micro-supercapacitors is reported, with which the fabricated devices can acquire a maximal areal capacitance 27.29 mF cm<sup>−2</sup>, achieving at least 460% enhancement compared to value advanced carbon-based MSCs (0.1–6 cm<sup>−2</sup>).
On-chip microsupercapacitors (MSCs) have application in powering microelectronic devices. Most of previous MSCs are made from carbon materials, which high power but low energy density. In this work, 3D interdigital Au/MnO2 /Au stacked been fabricated based on laser printed flexible templates. This vertical-stacked electrode configuration can effectively increase the contact area between MnO2 active layer and Au conductive layer, thus improve electron transport electrolyte ion diffusion,...