A5082968836- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Advancements in Battery Materials
- Advanced battery technologies research
- Graphene research and applications
- Advanced Battery Materials and Technologies
- MXene and MAX Phase Materials
- Solar-Powered Water Purification Methods
- Advanced Battery Technologies Research
- Advanced Materials and Mechanics
- Perovskite Materials and Applications
- 2D Materials and Applications
- Membrane Separation Technologies
- Gas Sensing Nanomaterials and Sensors
- Dielectric materials and actuators
- Solar Thermal and Photovoltaic Systems
- Graphene and Nanomaterials Applications
- Surface Modification and Superhydrophobicity
- Nanopore and Nanochannel Transport Studies
- Innovative Energy Harvesting Technologies
- Electrohydrodynamics and Fluid Dynamics
- Supramolecular Self-Assembly in Materials
- Advanced Memory and Neural Computing
- Ga2O3 and related materials
Fuzhou University
2021-2025
Materials Technologies (United States)
2025
Tan Kah Kee Innovation Laboratory
2022-2024
Tsinghua University
2015-2022
State Key Laboratory of Tribology
2022
State Council of the People's Republic of China
2018
A poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) hydrogel is prepared by thermal treatment of a commercial PEDOT:PSS (PH1000) suspension in 0.1 mol L-1 sulfuric acid followed partially removing its PSS component with concentrated acid. This has low solid content 4% (by weight) and an extremely high conductivity 880 S m-1 . It can be fabricated into different shapes such as films, fibers, columns arbitrary sizes for practical applications. highly conductive mechanically...
Abstract Natural vascular plants leaves rely on differences in osmotic pressure, transpiration and guttation to produce tons of clean water, powered by sunlight. Inspired this, we report a sunlight-driven purifier for high-efficiency water purification production. This is characterized negative temperature response poly(N-isopropylacrylamide) hydrogel (PN) anchored onto superhydrophilic melamine foam skeleton, layer PNIPAm modified graphene (PG) filter membrane coated outside. Molecular...
A high-performance flexible photoconductor based on a lead-free perovskite was made and it can be used as light-stimulated synaptic device.
Interfacial solar vapor generation is a promising technique to efficiently get fresh water from seawater or effluent. However, for the traditional static evaporation models, further performance improvement has encountered bottlenecks due lack of dynamic management and self-regulation on evolving movement phase change in process. Here, reconfigurable magnetically responsive evaporator with conic arrays developed through controllable reversible assembly graphene wrapped Fe3O4 nanoparticles....
Ultralight, ultrastrong, and supertough graphene aerogel metamaterials combining with multi-functionalities are promising for future military domestic applications. However, the unsatisfactory mechanical performances lack of multiscale structural regulation still impede development aerogels. Herein, we demonstrate a laser-engraving strategy toward meta-aerogels (GmAs) unusual characters. As prerequisite, nanofiber-reinforced networks convert walls' deformation from microscopic buckling to...
Abstract Owing to zinc dendrites and parasitic reactions, aqueous Zn‐metal batteries often suffer from poor reversibility cyclability. Electrolyte additives present a promising strategy improve Zn anode stability. However, the ever‐evolving perspectives mechanisms, paradoxically, complicate battery design, causing scenario where any electrolyte additive seems be effective. Herein, it is taken ionic liquid (IL) as an example detailed explored impact of three typical IL anions, namely OTF − ,...
Abstract The serious dendrite formation and safety hazards associated with side reactions hinder the practical application of lithium metal batteries. A molecular customization strategy based on both physical chemical properties is reported. copolymer acrylamide hexafluorobutyl acrylate molecules used as an artificial solid electrolyte interface(ASEI) for to achieve dynamic interface protection during cycling. amide group serves rigid unit, while flexible imparts excellent mechanical...
Nacre-like graphene films are prepared by evaporation-induced assembly of oxide dispersions containing small amounts cellulose nanocrystal (CNC), followed chemical reduction with hydroiodic acid. CNC induces the formation wrinkles on sheets, greatly enhancing mechanical properties resultant films. The deliver an ultrahigh tensile strength 765 ± 43 MPa (up to 800 in some cases), a large failure strain 6.22 0.19%, and superior toughness 15.64 2.20 MJ m-3 , as well high electrical conductivity...
Capacitive energy storage has advantages of high power density, long lifespan, and good safety, but is restricted by low density. Inspired the charge mechanism batteries, a spatial density (SCD) maximization strategy developed to compensate this shortage densely neatly packing ionic charges in capacitive materials. A record SCD (ca. 550 C cm-3 ) was achieved balancing valance size charge-carrier ions matching ion sizes with pore structure electrode materials, nearly five times higher than...
Phototransistors with a structure of nitrogen‐doped graphene quantum dots (NGQDs)–perovskite composite layer and mildly reduced oxide (mrGO) are fabricated through solution‐processing method. This hybrid phototransistor exhibits broad detection range (from 365 to 940 nm), high photoresponsivity (1.92 × 10 4 A W −1 ), rapid response light on–off (≈10 ms). NGQDs offer an effective fast path for electron transfer from the perovskite mrGO, resulting in improvement photocurrent photoswitching...
A flexible in-plane micro-supercapacitor fabricated by laser carving a highly conductive reduced graphene oxide film and electrochemical activation exhibits high areal specific capacitance excellent cycling stability.
Abstract Filtering capacitor is a necessary component in the modern electronic circuit. Traditional filtering often limited by its bulky and rigid configuration narrow workable scope of applications. Here, an aqueous hybrid electrochemical developed for alternating current line with applicable wide frequency range from 1 to 10,000 Hz. This possesses areal specific energy density 438 μF V 2 cm −2 at 120 Hz, which best our knowledge record high among capacitors reported so far. It can convert...
MXene aerogels, known for good electrical properties, offer immense potential the development of high-sensitivity pressure sensors. However, intrinsic challenges stemming from poor self-assembly capability and high hydrophilicity impede natural drying process MXene-based hydrogels, thereby constraining their application on a large scale in sensor technology. Herein, graphene-assisted approach aimed at modulating hydrophobicity enhancing framework strength through well-designed prefreezing...
As an emerging type of electrochemical energy storage devices, sodium-ion capacitors (SICs) are potentially capable high density and power density, as well low cost long lifespan. Unfortunately, the lack high-performance capacitive cathodes that can fully couple with well-developed battery-type anodes severely restricts further development SICs. Here, we develop a compact yet highly ordered graphene solid (HOGS), which combines merits porosity and, more attractively, possesses lamellar...
Filtering capacitors with wide operating voltage range are essential for smoothing ripples in line-powered system, which still unsatisfactory due to low energy density and limited working scopes. Herein, we report an aqueous hybrid electrochemical capacitor areal specific of 1.29 mF V2 cm-2 at 120 Hz, greater than common ones. Interestingly, it can be easily integrated scale show excellent flexibility, controllable stable filtering performance, device (e.g., seven units series) exhibits...
Highly stretchable and conductive ionogels have great potential in flexible electronics soft robotic skins. However, current are still far from being able to accurately duplicate the mechanically responsive behavior of real human skin. Furthermore, durable skins that applicable under harsh conditions lacking. Herein, a strong noncovalent interaction, ionic clusters, is combined with hydrogen bonds obtain physically cross-linked ionogel (PCI). Benefiting bonding cluster, PCI shows...
Hydroxyl-rich graphene hydrogels, HRGHs, were prepared by tailoring the oxygenated groups and used for a high-performance supercapacitors with high gravimetric, volumetric, areal capacitances at mass loadings.
High-frequency responsive capacitors with lightweight, flexibility, and miniaturization are among the most vital circuit components because they can be readily incorporated into various portable devices to smooth out ripples for circuits. Electrode materials no doubt at heart of such devices. Despite tremendous efforts recent advances, development flexible scalable high-frequency capacitor electrodes superior performance remains a great challenge. Herein, straightforward technologically...
Abstract Electrochemical capacitors (ECs) with high‐rate characteristics demonstrate great promise for replacing bulky aluminum electrolytic alternate current (AC)‐filtering functions. Currently, the performance of AC‐line filtering ECs is limited by vast gap between ionic transport kinetics and capacity density electrode materials. Herein, vertically oriented MXene reduced graphene oxide composite (VMG) electrodes are prepared electrochemical co‐deposition to bridge ECs. Benefiting from...
Abstract Line-filtering electrochemical capacitors (LFECs) are demonstrating advantages in line filtering over traditional electrolytic capacitors. However, they can only function at no-load or low-power conditions due to the limited high-frequency capacitance resulting from excessive ionic resistance, despite much progress electrode materials. Here, we show separators dominate both ion migration and LFECs. A 3 μm-thick thread-anchor structured separator is developed, featuring accelerated...
Expanding the electrochemical stability window (ESW) of aqueous batteries significantly enhances their safety and energy density, addressing performance limitations elevating position in storage systems. Over past decade, water-in-salt electrolyte (WiSE) has led to groundbreaking advancement this field. However, a pressing question arises: can we further broaden ESW through novel approaches? This study delves into question, leveraging atomistic simulation along with estimation WiSE continuum...
Ultrafast electrochemical capacitors with alternating current line filtering function have attracted growing attention owing to their potential replace the state-of-the-art bulky aluminum electrolyte capacitors. In spite of rapid advance recently involving nanomaterials as electrode building units, it remains largely unexplored how structurally and chemically engineer electrodes out renewable resource competitive or better rate performance. Herein, wood a was used fabricate highly...