A5100689562- Electromagnetic wave absorption materials
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Electrocatalysts for Energy Conversion
- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Catalytic Processes in Materials Science
- Fuel Cells and Related Materials
- Supercapacitor Materials and Fabrication
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Advanced battery technologies research
- Hydrogen Storage and Materials
- Ammonia Synthesis and Nitrogen Reduction
- Nanomaterials for catalytic reactions
- Advanced Battery Technologies Research
- Carbon dioxide utilization in catalysis
- MXene and MAX Phase Materials
- Advanced Photocatalysis Techniques
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- CO2 Reduction Techniques and Catalysts
- Advanced Thermoelectric Materials and Devices
- Dielectric materials and actuators
- Extraction and Separation Processes
Shanghai Advanced Research Institute
2019-2025
Chinese Academy of Sciences
2014-2025
Soochow University
2019-2025
Jiangxi Science and Technology Normal University
2017-2025
Shanghai CASB Biotechnology (China)
2025
University of Michigan
2025
Minzu University of China
2017-2024
Yunnan University
2010-2024
Beihang University
2015-2024
Shanghai Ocean University
2024
Abstract Multifunctionalization is the future development direction for microwave absorbing materials, but has not yet been explored. The effective integration of multiple functions into one material remains a huge challenge. Herein, an aerogel‐type absorber assembled with multidimensional organic and inorganic components synthesized. Polyacrylonitrile fibers polybenzoxazine membranes work as skeleton crosslinker, respectively, forming 3D framework, in which carbon nanotubes are...
Porous carbon nanotubes/cobalt nanoparticles (CNTs/Co) composite with dodecahedron morphology was synthesized by in situ pyrolysis of the Co-based zeolitic imidazolate framework a reducing atmosphere. The and microstructure can be well tuned controlling conditions. At lower temperature, CNTs/Co is composed well-dispersed Co short CNT clusters low graphitic degree. increase temperature/time promotes growth graphitization CNTs leads to aggregation nanoparticles. optimized exhibits strong...
Abstract Nonprecious metal catalysts (NPMCs) FeNC are promising alternatives to noble Pt as the oxygen reduction reaction (ORR) for proton‐exchange‐membrane fuel cells. Herein, a new modulation strategy is reported active moiety FeN 4 via precise “single‐atom single‐atom” grafting of atom onto Fe center through bridging molecule, creating 1 O 2 Fe N . The modulated exhibits remarkably improved ORR stabilities in acidic media. Moreover, it shows unexpectedly high catalytic activities...
Simultaneously increasing the activity and stability of single-atom active sites M-N-C catalysts is critical but remains a great challenge. Here, we report an Fe-N-C catalyst with nitrogen-coordinated iron clusters closely surrounding Fe-N4 for oxygen reduction reaction in acidic fuel cells. A strong electronic interaction built between satellite due to unblocked electron transfer pathways very short interacting distances. The optimize adsorption strength intermediates on also shorten bond...
Abstract The environmentally friendly synthesis of highly active Fe‐N‐C electrocatalysts for proton‐exchange membrane fuel cells (PEMFCs) is desirable but remains challenging. A simple and scalable method presented to fabricate Fe II ‐doped ZIF‐8, which can be further pyrolyzed into with 3 wt % exclusively in Fe‐N 4 moieties. Significantly, this derived acidic PEMFC exhibits an unprecedented current density 1.65 cm −2 at 0.6 V the highest power 1.14 W compared previously reported NPMCs....
Developing lightweight and highly efficient electromagnetic wave (EMW) absorbing materials is crucial but challenging for anti-electromagnetic irradiation interference. Herein, we used multiwalled carbon nanotubes (MWCNTs) as templates growth of Co-based zeolitic imidazolate frameworks (ZIFs) obtained a Co–C/MWCNTs composite by postpyrolysis. The MWCNTs interconnected the ZIF-derived Co–C porous particles, constructing conductive network electron hopping migration. Moreover, was aligned in...
Single-atom catalysts (SACs) have attracted much attention owning to their high catalytic properties. Herein, yttrium and scandium rare earth SACs are successfully synthesized on a carbon support (Y1/NC Sc1/NC). Different from the well-known M-N4 structure of M-N-C (M = Fe, Co) catalysts, Sc Y atoms with large atomic radius tend be anchored large-sized defects through six coordination bonds nitrogen carbon. Although Y- Sc-based nanomaterials generally inactive room-temperature...
Non-precious-metal or metal-free catalysts with stability are desirable but challenging for proton exchange membrane fuel cells. Here we partially unzip a multiwall carbon nanotube to synthesize zigzag-edged graphene nanoribbons backbone electrocatalysis of oxygen reduction in Zigzag exhibits peak areal power density 0.161 W cm-2 and mass 520 g-1, superior most non-precious-metal electrocatalysts. Notably, the zigzag is improved comparison representative iron-nitrogen-carbon catalyst cell...
The active sites of Fe–N–C catalysts are nitrogen coordinated iron atoms, FeN<italic>x</italic>(<italic>x</italic> = 1–5), that have five possible coordination numbers, corresponding to different ORR activities and PEMFC performances.
Flexible Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub>/PVDF nanocomposites are prepared by embedding porous Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> core/shell nanorods in polyvinylidene fluoride (PVDF) matrix. The nanocomposite with filler content of 40 wt% shows excellent microwave absorption performance over 2−18 GHz.
Hierarchical NiCo<sub>2</sub>O<sub>4</sub>/Co<sub>3</sub>O<sub>4</sub>/NiO composite was fabricated through a facile hydrothermal method, followed by post-annealing treatment.
Conductive hydrogels have potential applications in shielding electromagnetic (EM) radiation interference deformable and wearable electronic devices, but usually suffer from poor environmental stability stretching-induced performance degradation. Although organohydrogels can improve the of materials, their development is at expense reducing electrical conductivity thus weakening EM ability. Here, a MXene organohydrogel prepared which composed network for electron conduction, binary solvent...
Stretchable conductive fibers are an important component of wearable electronic textiles, but often suffer from a decrease in conductivity upon stretching. The use liquid metal (LM) droplets as fillers elastic is promising solution. However, there urgent need to develop effective strategies achieve high adhesion LM substrates and establish efficient electron transport paths between droplets. Here, we large-sized MXene two-dimensional materials modify magnetic prepare MXene/magnetic...
Abstract M–N–C (M = Fe, Co) are highly active nonprecious metal electrocatalysts for the oxygen reduction reaction (ORR) and other applications. Although their operation stability has been extensively studied in proton‐exchange‐membrane fuel cells, storage that determines performance maintenance before use not yet understood. Here, it is found long‐term exposure of catalysts air would cause surface oxidation hydroxylation, resulting significant decrease ORR activity fuel‐cell performances....
To solve the serious environmental problem and huge resource waste of plastic pollution, we report a tandem catalytic conversion low-density polyethylene (LDPE) into naphtha, key feedstock for renewable production. Using β zeolite silicalite-1-encapsulated Pt nanoparticles (Pt@S-1), naphtha yield 89.5% is obtained with 96.8% selectivity C5-C9 hydrocarbons at 250 °C. The acid sites crack long-chain LDPE olefin intermediates, which diffuse within channels Pt@S-1 to encounter nanoparticles....
The excellent dielectric properties and tunable structural design of metal sulfides have attracted considerable interest in realizing electromagnetic wave (EMW) absorption. However, compared with traditional monometallic bimetallic that are extensively studied, the unique physical characteristics solid-solution-type response to EMW not been revealed yet. Herein, a method for preparing high-purity is proposed based on solid-phase situ exsolution different ions from hybrid precursors....