A5011958588- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Conducting polymers and applications
- Advanced Battery Materials and Technologies
- Catalytic Processes in Materials Science
- Graphene research and applications
- Polyoxometalates: Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Fuel Cells and Related Materials
- Boron and Carbon Nanomaterials Research
- MXene and MAX Phase Materials
- Luminescence and Fluorescent Materials
- Perovskite Materials and Applications
- Advanced Battery Technologies Research
- Carbon Nanotubes in Composites
- Catalysis and Oxidation Reactions
- Electrospun Nanofibers in Biomedical Applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Nanoplatforms for cancer theranostics
- Electron and X-Ray Spectroscopy Techniques
- Molecular Junctions and Nanostructures
- Chalcogenide Semiconductor Thin Films
Shanxi University
2022-2025
Peking University
2018-2025
Shanghai University of Electric Power
2022-2024
Soochow University
2024
Beijing National Laboratory for Molecular Sciences
2018-2023
State Key Laboratory of Rare Earth Materials Chemistry and Application
2018-2023
State Key Laboratory of Quantum Optics and Quantum Optics Devices
2022
Shantou University
2021-2022
Anhui University of Technology
2017
Anhui University
2014-2017
Rechargeable zinc-air batteries (ZABs) require bifunctional electrocatalysts presenting high activity in oxygen reduction/evolution reactions (ORR/OER), but the single-site metal-N-C catalysts suffer from their low OER activity. Herein, we designed a series of Fe-N-C catalysts, which present surface area and good conductivity by incorporating into mesoporous carbon supported on nanotubes, to study doping effect N P The additional P-doping dramatically increased content active pyridine-N...
Iron phthalocyanine (FePc) with unique FeN4 site has attracted increasing interests as a promising non-precious catalyst. However, the plane symmetric structure endows FePc undesired catalytic performance toward oxygen reduction reaction (ORR). Here, we report novel one-dimensional heterostructured ORR catalyst by coupling at polyoxometalate-encapsulated carbon nanotubes (FePc-{PW12 }@NTs) using host-guest chemistry. The encapsulation of polyoxometalates can induce local tensile strain...
Abstract Heteroatom‐doped porous carbon materials with distinctive surface properties and capacitive behavior have been accepted as promising candidates for supercapacitor electrodes. Currently, the researches mainly focus on developing facile synthetic method unveiling structure‐activity relationship to further elevate their performance. Here, B, N co‐doped sheet (BN‐PCS) is constructed by one‐pot pyrolysis of agar in KCl/KHCO 3 molten salt system. In this process, urea acts directing agent...
Abstract Facilitating the transition and new application of fossil energy sources are crucial to attaining carbon neutrality. Conversion coals into graphitic carbons represents an effective route achieve their high‐value utilization, while this process always involves corrosive/toxic chemical reagents time‐intensive heating treatment. Here, work reports a green, rapid, efficient flash Joule (FJH) technique produce high‐quality from diverse within 1 s. The surface groups, defects,...
Well-aligned hierarchical Cu(OH)<sub>2</sub>@Ni<sub>2</sub>(OH)<sub>2</sub>CO<sub>3</sub> core/shell nanowire arrays <italic>in situ</italic> grown on conductive copper foams as binder- and conductive-free electrodes display superior electrochemical performances.
Flexible batteries, which maintain their functions potently under various mechanical deformations, attract increasing interest due to potential applications in emerging portable and wearable electronics. Significant efforts have been devoted material synthesis structural designs realize the flexibility of batteries. Carbon nanotubes (CNTs) a unique one-dimensional (1D) nanostructure are convenient further assemble into diverse macroscopic structures, such as 1D fibers, 2D films 3D...
A facile protocol for the self-assembly of rGO/β-MnO<sub>2</sub> hybrid hydrogel with ultrafine structure and precise control mass-loading high performance supercapacitors is reported.
Novel structured graphene produced by an environmentally-friendly and high-yielding method together with excellent electrochemical energy storage performance is pursued. A one-pot, solvent- catalyst-free flash Joule heating approach developed for synthesizing nitrogen-doped so named as (FNG). The precursors of amorphous carbon black urea are quickly converted into high-quality FNG in less than 1 s under a short electrical pulse bright blackbody radiation. prepared product features high...
High-quality single-walled carbon nanotube films are promising current collectors for flexible supercapacitors.
Abstract In recent years, nitrogen‐doped carbons show great application potentials in the fields of electrochemical energy storage and conversion. Here, ultrafast green preparation carbon nanotubes (N‐CNTs) via an efficient flash Joule heating method is reported. The precursor 1D core–shell structure CNT@polyaniline first synthesized using situ polymerization then rapidly conversed into N‐CNTs at ≈1300 K within 1 s. Electrochemical tests reveal desirable capacitive property oxygen catalytic...
Abstract Graphitic carbon nanocages (CNCs) have garnered attention as viable candidates for potassium storage, primarily due to their notable crystallinity, large surface area, and rich porosity. Yet, the development of a rapid, scalable, economically feasible synthesis approach CNCs persists formidable challenge. This study presents rapid (millisecond‐scale) scalable (gram‐scale) method fabricating mesoporous characterized by high purity orderly graphitic structures, utilizing flash Joule...
High-entropy intermetallic (HEI) nanocrystals, composed of multiple elements with an ordered structure, are immense interest in heterogeneous catalysis due to their unique geometric and electronic structures the cocktail effect. Despite tremendous efforts dedicated regulating metal composition advanced synthetic methodologies improve performance, surface local chemical order HEI correlation activity at atomic level remain obscure yet challenging. Herein, by determining three-dimensional (3D)...
Porous carbon materials are promising for electrodes of supercapacitors due to their large surface area and porous channels, which provide ample charge storage sites facilitate ion transport. In this study, we report a one-pot ultrafast molten-salt method synthesizing from anthracite, using Joule heating technique at 900 °C 3 s. The rapid (1150 K s–1) with KCl/K2CO3 salts results in homogeneous medium that exfoliates activates yielding high specific 1338 m2 g–1. It exhibits capacitance 284.6...
This work tracked at the atomic scale interfacial reaction induced strong metal–support interaction between SiO 2 and metal catalysts evolution under reactive conditions by aberration-corrected environmental transmission electron microscopy.
Open AccessCCS ChemistryRESEARCH ARTICLE1 Nov 2021Carbon-Involved Near-Surface Evolution of Cobalt Nanocatalysts: An in Situ Study Feng Yang†, Haofei Zhao†, Wu Wang, Qidong Liu, Xu Yuecong Hu, Xinrui Zhang, Sheng Zhu, Dongsheng He, Yingying Xu, Jiaqing Rongming Wang and Yan Li Yang† Beijing National Laboratory for Molecular Science, Key the Physics Chemistry Nanodevices, State Rare Earth Materials Applications, College Engineering, Peking University, 100871 Department Chemistry, Guangdong...
Birnessite M x MnO 2 (M = Na + , K etc .) has emerged as a promising alternative to the classical material owing its improved pseudocapacitive performance for energy storage. Understanding their structure–property correlation is essential development and application of advanced supercapacitors. Herein, we adopt crystal field theory density functional simulation reveal structural dependence property . Attributing Jahn–Teller effect Mn 3+ bandgap can be tuned by changing value (i.e.,...
Organic cocrystal exhibits excellent photothermal conversion (PTC), but how the intermolecular interactions of cocrystals regulate PTC is obscure. Here, two isomeric donor molecules (phenanthrene and anthracene) electron-withdrawing (7,7,8,8,8-tetracyanodimethylquinone 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinone dimethane) are self-assembled into four (PTQ, PFQ, ATQ, AFQ). By changing molecular configuration ability acceptor, intrinsic influencing factors interaction on were explored....