A5060068223- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Advancements in Battery Materials
- Conducting polymers and applications
- Advanced Battery Materials and Technologies
- Advanced Sensor and Energy Harvesting Materials
- Fuel Cells and Related Materials
- MXene and MAX Phase Materials
- Copper-based nanomaterials and applications
- Perovskite Materials and Applications
- Catalytic Processes in Materials Science
- Graphene research and applications
- Advanced Memory and Neural Computing
- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Advanced Battery Technologies Research
- TiO2 Photocatalysis and Solar Cells
- 2D Materials and Applications
- CO2 Reduction Techniques and Catalysts
- Covalent Organic Framework Applications
- Nanomaterials for catalytic reactions
- Advanced biosensing and bioanalysis techniques
- Transition Metal Oxide Nanomaterials
The University of Sydney
2019-2024
City University of Hong Kong
2015-2022
Kowloon Hospital
2015-2018
Fuzhou University
2013-2015
The fabrication of photoluminescent Ti3C2 MXene quantum dots (MQDs) by a facile hydrothermal method is reported, which may greatly extend the applications MXene-based materials. Interestingly, as-prepared MQDs show excitation-dependent photoluminescence spectra with yields up to ≈10% due strong confinement. as biocompatible multicolor cellular imaging probes and zinc ion sensors are demonstrated. As service our authors readers, this journal provides supporting information supplied authors....
A long-life, high-capacity, highly safe and wearable solid-state zinc ion battery was constructed using a novel gelatin PAM based electrolyte.
Abstract Superior self-healability and stretchability are critical elements for the practical wide-scale adoption of personalized electronics such as portable wearable energy storage devices. However, low healing efficiency self-healable supercapacitors small strain stretchable fundamentally limited by conventional polyvinyl alcohol-based acidic electrolytes, which intrinsically neither nor highly stretchable. Here we report an electrolyte comprising polyacrylic acid dual crosslinked...
Though polypyrrole (PPy) is widely used in flexible supercapacitors owing to its high electrochemical activity and intrinsic flexibility, limited capacitance cycling stability of freestanding PPy films greatly reduce their practicality real‐world applications. Herein, we report a new approach enhance PPy's by forming conductive hybrid film through intercalating into layered Ti 3 C 2 (l‐Ti , MXene material). The increases from 150 (300) 203 mF cm −2 (406 F −3 ). Moreover, almost 100%...
A field-effect transistor (FET) based on ultrathin Ti3C2–MXene micropatterns is developed and utilized as a highly sensitive biosensor. The device produced with the microcontact printing technique, making use of its unique advantages for easy fabrication. Using MXene–FET device, label-free probing small molecules in typical biological environments fast detection action potentials primary neurons demonstrated. As service to our authors readers, this journal provides supporting information...
Emerging research toward next-generation flexible and wearable electronics has stimulated the efforts to build highly wearable, durable, deformable energy devices with excellent electrochemical performances. Here, we develop a high-performance, waterproof, tailorable, stretchable yarn zinc ion battery (ZIB) using double-helix electrodes cross-linked polyacrylamide (PAM) electrolyte. Due high ionic conductivity of PAM electrolyte helix structured electrodes, ZIB delivers specific capacity...
Multifunctional energy storage and conversion devices that incorporate novel features functions in intelligent interactive modes, represent a radical advance consumer products, such as wearable electronics, healthcare devices, artificial intelligence, electric vehicles, smart household, space satellites, etc. Here, are defined to be responsive changes configurational integrity, voltage, mechanical deformation, light, temperature, called self‐healability, electrochromism, shape memory,...
Rechargeable aqueous zinc–cobalt oxide batteries with high voltage, excellent rate capability and long-cycling life.
An <italic>in situ</italic> texturing protocol is developed for preparing N,S-enriched hierarchically porous carbon as an excellent reversible oxygen electrocatalyst.
Wearable electronic textiles that store capacitive energy are a next frontier in personalized electronics. However, the lack of industrially weavable and knittable conductive yarns conjunction with high capacitance, limits wide-scale application such textiles. Here pristine soft continuously produced by scalable method use twist-bundle-drawing technique, mechanically robust enough to be knitted cloth commercial knitting machine. Subsequently, reduced-graphene-oxide-modified covered...
This review summarizes the latest advances in hydrogen evolution reaction under neutral conditions to enlighten future researches.
The exploitation of a high-efficient, low-cost, and stable non-noble-metal-based catalyst with oxygen reduction reaction (ORR) evolution (OER) simultaneously, as air electrode material for rechargeable zinc-air battery is significantly crucial. Meanwhile, the compressible flexibility prerequisite wearable or/and portable electronics. Herein, we present strategy via single-site dispersion an Fe-Nx species on two-dimensional (2D) highly graphitic porous nitrogen-doped carbon layer to implement...
With intrinsic safety and much higher energy densities than supercapacitors, rechargeable nickel/cobalt–zinc-based textile batteries are promising power sources for next generation personalized wearable electronics. However, high-performance rarely reported because there is a lack of industrially weavable knittable highly conductive yarns. Here, we use scalably produced yarns uniformly covered with zinc (as anode) nickel cobalt hydroxide nanosheets cathode) to fabricate yarn batteries. They...
Yarn-based supercapacitors have received considerable attention recently, offering unprecedented opportunities for future wearable electronic devices (e.g., smart clothes). However, the reliability and lifespan of yarn-based can be seriously limited by accidental mechanical damage during practical applications. Therefore, a supercapacitor endowed with mechanically electrically self-healing properties is brilliant solution to challenge. Compared conventional planar-like or large wire-like...
Flexible zinc-air batteries (ZAB) are a promising battery candidate for emerging flexible electronic devices, but the catalysis-based working principle and unique semi-opened structure pose severe challenge to their overall performance at cold temperature. Herein, we report first rechargeable ZAB with excellent low-temperature adaptability, based on innovation of an efficient electrocatalyst offset electrochemical shrinkage caused by decreased temperature highly conductive hydrogel polarized...
Abstract Solid‐state aqueous energy conversion and storage are regarded as one of the most promising technologies for low‐cost large‐scale applications without safety risk. However, current solid‐state batteries can only sustain tens to hundreds charging–discharging cycles deliver limited capacities, particularly in alkaline electrolytes. This has severely applications. Herein, it is reported that a sodium polyacrylate hydrogel electrolyte ensures an order magnitude higher cycling stability...
Although both are based on Zn, Zn-air batteries and Zn-ion good at energy density power density, respectively. Here, we adopted Ar-plasma to engrave a cobalt oxide with abundant oxygen vacancies (denoted as Co3O4- x). The introduction of not only promotes its reversible Co-O ↔ Co-O-OH redox reaction but also leads reduction evolution (ORR/OER) performance (a half-wave potential 0.84 V, four-electron transfer process for ORR, 330 mV overpotential, 58 mV·dec-1 Tafel slope OER). We then...
Mn<sub>3</sub>O<sub>4</sub>nanoparticles supported by layered Ti<sub>3</sub>C<sub>2</sub>MXene displayed favorable electrochemical activity for oxygen reduction reaction and superb power density zinc–air battery.
Electrocatalytic hydrogen peroxide (H2 O2 ) synthesis via the two-electron oxygen reduction reaction (2e ORR) pathway is becoming increasingly important due to green production process. Here, cationic vacancies on nickel phosphide, as a proof-of-concept regulate catalyst's physicochemical properties, are introduced for efficient H2 electrosynthesis. The as-fabricated Ni (VNi )-enriched Ni2-x P-VNi electrocatalyst exhibits remarkable 2e ORR performance with molar fraction of >95% and Faradaic...