A5026669428- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- High-Energy Particle Collisions Research
- Nanomaterials for catalytic reactions
- Aerogels and thermal insulation
- Advanced Photocatalysis Techniques
- Covalent Organic Framework Applications
- Electrospun Nanofibers in Biomedical Applications
- Advanced Cellulose Research Studies
- Metal-Organic Frameworks: Synthesis and Applications
- Advancements in Battery Materials
- Chalcogenide Semiconductor Thin Films
- Catalysis for Biomass Conversion
- Quantum Dots Synthesis And Properties
- Machine Learning in Materials Science
- Graphene research and applications
- 2D Materials and Applications
- CO2 Reduction Techniques and Catalysts
- Electrochemical Analysis and Applications
Hefei National Center for Physical Sciences at Nanoscale
2015-2025
University of Science and Technology of China
2016-2025
University of Chinese Academy of Sciences
2021-2025
Jilin Medical University
2025
Jilin University
2022-2025
Institute of High Energy Physics
2016-2024
University of Pittsburgh
2024
First Affiliated Hospital of Guangzhou Medical University
2024
State Key Laboratory of Respiratory Disease
2024
Guangzhou Medical University
2024
Supercapacitors (also known as ultracapacitors) are considered to be the most promising approach meet pressing requirements of energy storage. Supercapacitive electrode materials, which closely related high-efficiency storage energy, have provoked more interest. Herein, we present a high-capacity supercapacitor material based on nitrogen-doped porous carbon nanofibers synthesized by carbonization macroscopic-scale carbonaceous (CNFs) coated with polypyrrole (CNFs@polypyrrole) at an...
A family of mesoporous nonprecious metal (NPM) catalysts for oxygen reduction reaction (ORR) in acidic media, including cobalt-nitrogen-doped carbon (C-N-Co) and iron-nitrogen-doped (C-N-Fe), was prepared from vitamin B12 (VB12) the polyaniline-Fe (PANI-Fe) complex, respectively. Silica nanoparticles, ordered silica SBA-15, montmorillonite were used as templates achieving structures. The most active catalyst fabricated VB12 nanoparticles exhibited a remarkable ORR activity medium (half-wave...
Thirsty fibers: The aerogels described in the title can be fabricated large scale by using a low-cost biomass, bacterial cellulose, as precursor, which produced at industrial level microbial fermentation process. carbon nanofiber (black pieces picture) exhibit superior absorption capacity for organic solvents (red solution) and high potential pressure sensing. As service to our authors readers, this journal provides supporting information supplied authors. Such materials are peer reviewed...
Robust nanofiber gels: Monolithic hydrogels and aerogels consisting of uniform carbonaceous nanofibers (CNFs) were fabricated on a macroscopic scale (12 L, see picture) by simple template-directed, hydrothermal carbonization process. The high surface reactivity the CNFs porosity robust nature gels can be exploited in applications such as selective adsorbents templates for creating functional composite gels. Detailed facts importance to specialist readers are published "Supporting...
Replacement of precious platinum with efficient and low-cost catalysts for electrocatalytic hydrogen evolution at low overpotentials holds tremendous promise clean energy devices. Here we report a novel type robust cobalt-nitrogen/carbon catalyst the reaction (HER) that is prepared by pyrolysis cobalt-N4 macrocycles or cobalt/o-phenylenediamine composites using silica colloids as hard template. We identify well-dispersed molecular CoNx sites on carbon support active responsible HER. The...
Exploring low-cost and high-performance nonprecious metal catalysts (NPMCs) for oxygen reduction reaction (ORR) in fuel cells metal-air batteries is crucial the commercialization of these energy conversion storage devices. Here we report a novel NPMC consisting Fe3 C nanoparticles encapsulated mesoporous Fe-N-doped carbon nanofibers, which synthesized by cost-effective method using carbonaceous pyrrole, FeCl3 as precursors. The electrocatalyst exhibits outstanding ORR activity (onset...
A new kind of high-performance asymmetric supercapacitor is designed with pyrolyzed bacterial cellulose (p-BC)-coated MnO2 as a positive electrode material and nitrogen-doped p-BC negative via an easy, efficient, large-scale, green fabrication approach. The optimal device possesses excellent supercapacitive behavior quite high energy power density. Nowadays, supercapacitors have drawn extensive attention because they can instantaneously transport higher within very short period than...
Recently, heteroatom‐doped three‐dimensional (3D) nanostructured carbon materials have attracted immense interest because of their great potential in various applications. Hence, it is highly desirable to exploit a simple, renewable, scalable, multifunctional, and general strategy engineer 3D nanomaterials. Herein, eco‐friendly, general, effective way fabricate nanofiber networks on large scale reported. Using this method, P‐doped, N,P‐co‐doped, B,P‐co‐doped are successfully fabricated by...
Atomically ordered intermetallic nanoparticles are promising for catalytic applications but difficult to produce because the high-temperature annealing required atom ordering inevitably accelerates metal sintering that leads larger crystallites. We prepared platinum intermetallics with an average particle size of <5 nanometers on porous sulfur-doped carbon supports, which strong interaction between and sulfur suppresses up 1000°C. synthesized libraries small consisting 46 combinations 16...
The rational construction of covalent or noncovalent organic two-dimensional nanosheets is a fascinating target because their promising applications in electronics, membrane technology, catalysis, sensing, and energy technologies. Herein, large-area (square millimeters) free-standing 2D supramolecular polymer (2DSP) single-layer sheet (0.7-0.9 nm thickness), comprising triphenylene-fused nickel bis(dithiolene) complexes has been readily prepared by using the Langmuir-Blodgett method. Such...
Nitrogen-doped carbon nanosheets (NDCN) with size-defined mesopores are reported as highly efficient metal-free catalyst for the oxygen reduction reaction (ORR). A uniform and tunable mesoporous structure of NDCN is prepared using a templating approach. Such controlled in exerts an essential influence on electrocatalytic performance both alkaline acidic media ORR. The pore diameter 22 nm exhibits more positive ORR onset potential than that Pt/C (-0.01 V vs. -0.02 V) high diffusion-limited...
To meet the pressing demands for portable and flexible equipment in contemporary society, it is strongly required to develop next-generation inexpensive, flexible, lightweight, sustainable supercapacitor systems with large power densities, long cycle life, good operational safety. Here, we fabricate a all-solid-state device nitrogen-doped pyrolyzed bacterial cellulose (p-BC–N) as electrode material via low-cost, eco-friendly, low-temperature, scalable fabrication hydrothermal synthesis. The...
A cobalt-nitrogen-doped porous carbon that exhibits a ribbon-shape morphology, high surface area, mesoporous structure, and nitrogen cobalt content is fabricated for high-performance self-supported oxygen reduction electrocatalytsts through template-free pyrolysis of porphyrin-based conjugated polymer frameworks.
Metal oxides (MOs) have been widely investigated as promising high-capacity anode material for lithium ion batteries, but they usually exhibit poor cycling stability and rate performance due to the huge volume change induced by alloying reaction with lithium. In this article, we present a double protection strategy fabricating two-dimensional (2D) core-shell nanostructure improve electrochemical of metal in storage. The 2D architecture is constructed confining well-defined graphene based...
Traditional lithium-ion batteries that are based on layered Li intercalation electrode materials limited by the intrinsically low theoretical capacities of both electrodes and cannot meet increasing demand for energy. A facile route synthesis a new type composite nanofibers, namely carbon nanofibers decorated with molybdenum disulfide sheets (CNFs@MoS2), is now reported. synergistic effect was observed two-component anode, triggering electrochemical processes lithium storage, persistent...
Abstract Metal–support interaction is of great significance for catalysis as it can induce charge transfer between metal and support, tame electronic structure supported metals, impact adsorption energy reaction intermediates, eventually change the catalytic performance. Here, we report size-dependent reversal, that is, electrons from platinum single atoms to sulfur-doped carbons carbon supports conversely donate Pt when their size expanded ~1.5 nm cluster. The electron-enriched nanoclusters...
ConspectusThree dimensional (3D) carbon nanomaterials exhibit great application potential in environmental protection, electrochemical energy storage and conversion, catalysis, polymer science, advanced sensors fields. Current methods for preparing 3D nanomaterials, example, carbonization of organogels, chemical vapor deposition, self-assembly nanocarbon building blocks, inevitably involve some drawbacks, such as expensive toxic precursors, complex equipment technological requirements, low...
A free-standing Pt-nanowire membrane fabricated via a multistep templating process is used as an electrocatalyst for the oxygen reduction reaction (ORR). It exhibits remarkably high stability and good catalytic activity due to its unique nanowire-network structure. Detailed facts of importance specialist readers are published "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please note: The publisher responsible...
Abstract The removal of dye and toxic ionic pollutants from water is an extremely important issue. A simple filtration process to decontaminate by employing a free‐standing fibrous membrane fabricated highly uniform carbonaceous nanofibers (CNFs) demonstrated. This combines the excellent adsorption behavior CNFs advantages over conventional techniques, which include scale‐up, reduced time, lower energy consumption. Batch experiments showed that exhibited larger capacities than commercial...