A5084856310- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Conducting polymers and applications
- Perovskite Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photocatalysis Techniques
- ZnO doping and properties
- Electrocatalysts for Energy Conversion
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Copper-based nanomaterials and applications
- Advanced Battery Technologies Research
- Quantum Dots Synthesis And Properties
- Ga2O3 and related materials
- TiO2 Photocatalysis and Solar Cells
- Nanowire Synthesis and Applications
- Graphene research and applications
- Photoacoustic and Ultrasonic Imaging
- MXene and MAX Phase Materials
- Solid-state spectroscopy and crystallography
- Fuel Cells and Related Materials
- Graphene and Nanomaterials Applications
- Luminescence Properties of Advanced Materials
Jinan University
2016-2025
Guangzhou University
2024-2025
Beijing Institute of Nanoenergy and Nanosystems
2022-2024
Chinese Academy of Sciences
2003-2024
University of Jinan
2014-2024
Xidian University
2023
South China Normal University
2023
Shenzhen University
2023
Sun Yat-sen University
2014-2022
Guangdong Academy of Sciences
2020
A low-cost high-performance solid-state flexible asymmetric supercapacitor (ASC) with α-MnO2 nanowires and amorphous Fe2O3 nanotubes grown on carbon fabric is first designed fabricated. The assembled novel ASC device an extended operating voltage window of 1.6 V exhibits excellent performance such as a high energy density 0.55 mWh/cm(3) good rate capability. devices can find numerous applications effective power sources, powering color-switchable sun glasses smart windows.
A previously unknown rigid helical structure of zinc oxide consisting a superlattice-structured nanobelt was formed spontaneously in vapor-solid growth process. Starting from single-crystal stiff nanoribbon dominated by the c-plane polar surfaces, an abrupt structural transformation into led to formation uniform nanohelix due lattice rotation or twisting. The made two types alternating and periodically distributed long crystal stripes, which were oriented with their c axes perpendicular each...
Dendrite growth and by-products in Zn metal aqueous batteries have impeded their development as promising energy storage devices. We utilize a low-cost additive, glucose, to modulate the typical ZnSO4 electrolyte system for improving reversible plating/stripping on anode high-performance ion (ZIBs). Combing experimental characterizations theoretical calculations, we show that glucose environment can simultaneously solvation structure of Zn2+ anode-electrolyte interface. The engineering...
Although MnO2 is a promising material for supercapacitors (SCs) due to its excellent electrochemical performance and natural abundance, wide application limited by poor electrical conductivity. Inspired our results that the activity conductivity of ZnO nanowires were greatly improved after hydrogenation, we designed fabricated hydrogenated single-crystal ZnO@amorphous ZnO-doped core-shell nanocables (HZM) on carbon cloth as SC electrodes, showing such areal capacitance 138.7 mF/cm(2)...
Strain sensors based on individual ZnO piezoelectric fine-wires (PFWs; nanowires, microwires) have been fabricated by a simple, reliable, and cost-effective technique. The electromechanical sensor device consists of single electrically connected PFW that is placed the outer surface flexible polystyrene (PS) substrate bonded at its two ends. entire fully packaged polydimethylsiloxane (PDMS) thin layer. has Schottky contacts ends but with distinctly different barrier heights. I−V...
All-solid-state flexible supercapacitors based on a carbon/MnO2 (C/M) core–shell fiber structure were fabricated with high electrochemical performance such as rate capability scan up to 20 V s–1, volume capacitance of 2.5 F cm–3, and an energy density 2.2 × 10–4 Wh cm–3. By integrating triboelectric generator, could be charged power commercial electronic devices, liquid crystal display or light-emitting-diode, demonstrating feasibility efficient storage component self-powered micro/nanosystems.
UV response of ZnO nanowire nanosensor has been studied under ambient condition. By utilizing Schottky contact instead Ohmic in device fabrication, the sensitivity improved by four orders magnitude, and reset time drastically reduced from approximately 417 to 0.8 s. further surface functionalization with function polymers, 20 ms even without correcting electronic measurement system. These results demonstrate an effective approach for building high fast detectors.
Energy storage devices with the smart function of changing color can be obtained by incorporating electrochromic materials into battery or supercapacitor electrodes. In this review, we explain working principles supercapacitors, batteries, and devices. addition, discuss material candidates for energy storages in detail. The challenges integrated system simultaneous realization electrochromism are specially highlighted.
We successfully fabricate flexible electrochromic supercapacitor (SC) electrodes employing novel transparent conducting substrates. The as-synthesized SC exhibit great electrochemical performances (13.6 mF cm(-2), 138.2 F g(-1)) and high coloration efficiency (80.2 cm(2) C(-1)), which demonstrate their potential applications in smart windows combining energy storage electrochromism.
Two metal nitrides, TiN porous layers and Fe2N nanoparticles, are grown uniformly with the assistance of atomic layer deposition on vertically aligned graphene nanosheets used as cathode anode for solid-state supercapacitors, respectively. Full cells constructed show good flexibility, high-rate capability, 98% capacitance retention after 20 000 cycles. As a service to our authors readers, this journal provides supporting information supplied by authors. Such materials peer reviewed may be...
In this study, a general and effective phosphorization strategy is successfully demonstrated to enhance supercapacitor performance of various transition metals oxide or hydroxide, such as Ni(OH) 2 , Co(OH) MnO Fe O 3 . For example, 3D networked Ni P nanosheets array via facile reaction grown on the surface foam. The foam‐supported nanosheet (Ni NS/NF) electrode shows remarkable specific capacitance 2141 F g −1 at scan rate 50 mV s remains high 1109 even current density 83.3 A much larger...
Abstract We herein demonstrate the unusual effectiveness of two strategies in combination to enhance photoelectrochemical water splitting. First, work function adjustment via molybdenum (Mo) doping significantly reduces interfacial energy loss and increases open-circuit photovoltage bismuth vanadate (BiVO 4 ) cells. Second, creation optimization heterojunction boron (B) carbon nitride (C 3 N Mo BiVO enforce directional charge transfer, accomplished by B for C , substantially boost separation...
Abstract Transition metal oxides or (oxy)hydroxides have been intensively investigated as promising electrocatalysts for energy and environmental applications. Oxygen in the lattice was reported recently to actively participate surface reactions. Herein, we report a sacrificial template-directed approach synthesize Mo-doped NiFe (oxy)hydroxide with modulated oxygen activity an enhanced electrocatalyst towards evolution reaction (OER). The obtained MoNiFe displays high mass of 1910 A/g at...
Our photoanode has achieved a record high photocurrent density and applied bias photon-to-current efficiency for BiVO<sub>4</sub>-based photoanodes.
Using a two-end bonded ZnO piezoelectric-fine-wire (PFW) (nanowire, microwire) on flexible polymer substrate, the strain-induced change in I−V transport characteristic from symmetric to diode-type has been observed. This phenomenon is attributed asymmetric Schottky-barrier heights at both source and drain electrodes as caused by piezoelectric potential-drop along PFW, which have quantified using thermionic emission−diffusion theory. A new piezotronic switch device with an "on" "off" ratio of...
We report an approach for growing aligned ZnO nanowire arrays with a high degree control over size, orientation, dimensionality, uniformity, and possibly shape. Our method combines e-beam lithography low temperature hydrothermal to achieve patterned growth of NWs at <100degreesC on general inorganic substrates, such as Si GaN, without using catalyst. This opens up the possibility applying nanowires sensor arrays, piezoelectric antenna two-dimensional photonic crystals, IC interconnects,...
A 2D zinc cobaltite nanosheet is rationally designed and directly utilized as a binder-free electrode for SC with extraordinary high energy density.
Zn batteries are considered as potential candidates in future power sources, however suffer problems of rampant dendrite/by-product on anodes, torpid Zn2+ transfer/diffusion and poor energy density. Inspired by the host-guest interaction chemistry, an anion-trap agent β-cyclodextrin (β-CD) is introduced into Zn(ClO4 )2 electrolyte to induce dominant (002) deposition improve migration behaviors. The anion ClO4- revealed be trapped inside cavity β-CD, impairing barriers for significantly...
A dynamic surface reconstruction of oxide electrocatalysts in alkaline media is widely observed especially for layered double hydroxide (LDH), but little known about how to promote the toward desired surfaces improved oxygen evolution reaction (OER). Here, NiFe LDH nanosheets successfully induced a higher degree via situ sulfur doping than that by natural electrochemical activation. Theoretical calculations, operando Raman, and various ex characterizations reveal S anion-induced effect can...
Abstract Multifunctional glass windows that combine energy storage and electrochromism have been obtained by facile thermal evaporation electrodeposition methods. For example, WO 3 films had deposited on fluorine‐doped tin oxide (FTO) exhibited a high specific capacitance of 639.8 F g −1 . Their color changed from transparent to deep blue with an abrupt decrease in optical transmittance 91.3 % 15.1 at wavelength 633 nm when voltage −0.6 V (vs. Ag/AgCl) was applied, demonstrating its...
The pursuit of harmonic combination technology and fashion intrinsically points to the development smart garments. Herein, we present an all-solid tailorable energy textile possessing integrated function simultaneous solar harvesting storage, call it device. Our technique makes possible tailor multifunctional into any designed shape without impairing its performance produce stylish garments for wearable self-powering system with enhanced user experience more room design. "threads" (fiber...