A5000416335- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Electrocatalysts for Energy Conversion
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Supercapacitor Materials and Fabrication
- Fuel Cells and Related Materials
- Luminescence and Fluorescent Materials
- Magnetic Properties of Alloys
- Advanced battery technologies research
- Magnetic Properties and Applications
- Nanomaterials for catalytic reactions
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Graphene research and applications
- Magnetic and transport properties of perovskites and related materials
- Fullerene Chemistry and Applications
- Crystallography and molecular interactions
- Magnetic properties of thin films
- Magnetism in coordination complexes
- DNA and Nucleic Acid Chemistry
- Advanced Sensor and Energy Harvesting Materials
- Gas Sensing Nanomaterials and Sensors
Sun Yat-sen University
2013-2025
Northwestern Polytechnical University
2025
State Key Laboratory of Optoelectronic Materials and Technology
2020-2024
Chinese Academy of Sciences
2008-2024
South China University of Technology
2023-2024
Harbin Institute of Technology
2018-2024
Beijing University of Posts and Telecommunications
2024
Key Laboratory of Guangdong Province
2013-2024
Ji Hua Laboratory
2022-2024
China Three Gorges University
2022-2024
CONSPECTUS: Metallic and catalytically active materials with high surface area large porosity are a long-desired goal in both industry academia. In this Account, we summarize the strategies for making variety of self-supported noble metal aerogels consisting extended backbone nanonetworks. We discuss their outstanding physical chemical properties, including three-dimensional network structure, simple control over composition, specific area, hierarchical porosity. Additionally, show some...
Best of both worlds: PtxPdy, Pt, and Pd aerogels with high surface area porosity can be synthesized in a controlled fashion by straightforward environmentally benign strategy. These materials, which are highly active stable catalysts for the oxygen reduction reaction PEFC cathodes, combine stability extended surfaces nanoparticles.
Abstract Low‐cost, non‐noble‐metal electrocatalysts are required for direct methanol fuel cells, but their development has been hindered by limited activity, high onset potential, low conductivity, and poor durability. A surface electronic structure tuning strategy is presented, which involves doping of a foreign oxophilic post‐transition metal onto transition aerogels to achieve aerogel Ni 97 Bi 3 with unprecedented electrocatalytic activity durability in oxidation. Trace amounts atomically...
A class of novel nickel cobalt oxide hollow nanosponges were synthesized through a sodium borohydride reduction strategy. Due to their porous and nanostructures, synergetic effects between components, the optimized exhibited excellent catalytic activity towards oxygen evolution reaction.
Abstract One plausible approach to endow aerogels with specific properties while preserving their other attributes is fine‐tune the building blocks. However, preparation of metallic designated properties, for example catalytically beneficial morphologies and transition‐metal doping, still remains a challenge. Here, we report on first aerogel electrocatalyst composed entirely alloyed PdNi hollow nanospheres (HNSs) controllable chemical composition shell thickness. The combination blocks,...
Abstract Insufficient catalytic activity and stability high cost are the barriers for Pt‐based electrocatalysts in wide practical applications. Herein, a hierarchically porous PtNi nanoframe/N‐doped graphene aerogel (PtNiNF‐NGA) electrocatalyst with outstanding performance toward methanol oxidation reaction (MOR) acid electrolyte has been developed via facile tert‐butanol‐assisted structure reconfiguration. The ensemble of high‐alloying‐degree‐modulated electronic correspondingly optimum MOR...
Developing extra safety encryption technologies to prevent information leakage and combat fakes is in high demand but challenging. Herein, we propose a "double lock" strategy based on both lower critical solution temperature (LCST) upper (UCST) polymer hydrogels for camouflage multilevel encryption. Two types of were synthesized by the method random copolymerization. The number -CO-NH2 groups network structure changed enthalpic or entropic thermo-responsive hydrogels, ultimately precisely...
Open AccessCCS ChemistryRESEARCH ARTICLE7 Dec 2022Aqueous Synthesis of Covalent Organic Frameworks as Photocatalysts for Hydrogen Peroxide Production Fanglin Tan, Yuanyuan Zheng, Zhipeng Zhou, Honglei Wang, Xin Dong, Jing Yang, Zhaowei Ou, Haoyuan Qi, Wei Liu, Zhikun Zheng and Xudong Chen Tan Key Laboratory Polymeric Composite Functional Materials Ministry Education, School Chemistry, State Optoelectronic Technologies, Sun Yat-sen University, Guangzhou 510275 , Low-Carbon Chemistry & Energy...
Abstract The intelligent construction of non‐noble metal materials that exhibit reversible oxygen reduction reaction (ORR) and evolution (OER) with bifunctional electrocatalytic performance is greatly coveted in the realm zinc‐air batteries (ZABs). Herein, a crafted structure‐amorphous MnO 2 lamellae encapsulated covalent triazine polymer‐derived N, S, P co‐doped carbon sphere (A‐MnO /NSPC) designed using self‐doped pyrolysis coupled an situ encapsulation strategy. customized A‐MnO /NSPC‐2...
Abstract Developing efficient and stable Pt‐based oxygen reduction reaction (ORR) electrocatalysts via both economical controllable routes is critical for the practical application of electrochemical energy devices. Herein, a scalable, controllable, general ambient‐O 2 ‐involved aqueous‐solution cultivating strategy to prepare Pt x M y (M = Ni, Fe, Co) bunched‐nanocages aerogels (BNCs AG) demonstrated, based on newly established high‐M‐to‐Pt‐precursor‐ratio‐and‐B‐incorporation‐facilitated...
The core features of covalent organic frameworks (COFs) are crystallinity and porosity. However, the synthesis single-crystal COFs with monomers diverse reactivity adjustment their pore structures remain challenging. Here, we show that linkers can react a node to form guide other either or amorphous polymers gain mixed components, which homogeneous on unit cell scale controlled ratios. With linker-guided crystal growth method, created nine types up different more complex than any known...
Nanostructures as catalysts: Pd aerogels modified with α-, β-, and γ-cyclodextrins can be obtained by the spontaneous self-assembly of in situ generated nanoparticles. The show excellent electrocatalytic activity for oxidation ethanol. catalytic is believed to arise from nonsupported nanometer-scale structure aerogel network interactions ethanol cyclodextrin. Detailed facts importance specialist readers are published "Supporting Information". Such documents peer-reviewed, but not copy-edited...
A class of 3D PdNi bimetallic nanomaterials with porous nanostructures is synthesized using a facile and versatile approach at room temperature. Due to their nanostructures, clean surfaces, as well the synergistic effect between compositions, as-prepared exhibit greatly enhanced activity stability towards methanol electrooxidation in an alkaline medium, holding great promise fuel cells. As service our authors readers, this journal provides supporting information supplied by authors. Such...
We report the controllable synthesis of Pd aerogels with high surface area and porosity by destabilizing colloidal solutions nanoparticles variable concentrations calcium ions. Enzyme electrodes based on co-immobilized glucose oxidase show activity toward oxidation are promising materials for applications in bioelectronics.
Monolayer sheets have gained attention due to the unique properties derived from their two-dimensional structure. One of key challenges in sheet modification/synthesis is exchange integral parts while keeping them intact. We describe site-to-site transmetalation Zn2+ netpoints cm2-sized, metal–organic by Fe2+, Co2+, and Pb2+. This novel transformation was done both randomly at predetermined patterns defined photolithography create monolayer composed different netpoints. All transmetalated...
A new class of multimetallic hierarchical aerogels composed entirely interconnected Ni-PdxPty nano-building-blocks with in situ engineered morphologies and compositions is demonstrated. The underlying mechanism the galvanic shape-engineering elucidated terms nanowelding intermediate nanoparticles. integrate two levels porous structures, leading to improved electrocatalysis performance. As a service our authors readers, this journal provides supporting information supplied by authors. Such...
The development of quick and effective strategies for the removal organic dyes detection metal ions in aqueous solutions remains a challenge protecting public health environment. Multifunctional materials that combine both dye-adsorption pollutant-detection functions rarely have been explored. In this work, 2D Tb(III) coordination polymer (Tb-CP) was directly assembled on Zr(IV)-based UiO-66-NH2 matrix through covalent grafting, resulting new hybrid UiO-66-NH2@Tb-CP material. Benefiting from...
In this work, we report the first example of uniaxial aligned conjugated polymer (CP)/liquid crystalline elastomer (LCE) composite material by doping polyaniline nanoparticles into a classical monodomain polysiloxane-based LCE matrix. A series comparative experiments are performed to investigate photoresponsive properties these polyaniline/LCE samples in correspondence two different conjugation forms (emeralidine salt (ES) or emeralidine base (EB)) and varied concentrations (0.5 1.0 wt %)...
Developing electrocatalysts with low cost, high activity, and good durability is urgently demanded for the wide commercialization of fuel cells. By taking advantage nanostructure engineering, we fabricated PtAg nanotubular aerogels (NTAGs) electrocatalytic activity via a simple galvanic replacement reaction between in situ spontaneously gelated Ag hydrogel Pt precursor. The NTAGs have hierarchical porous network features primary networks pores from interconnected nanotubes aerogel secondary...
It has been a longstanding challenge to rationally synthesize thin films of organic two-dimensional (2D) crystals with large single-crystalline domains. Here, we present general strategy for the creation 2D covalent frameworks (COFs) on water surface, assisted by charged polymer. The morphology preorganized monomers underneath polymer surface and their diffusion were crucial formation crystals. Thin COFs an average domain size around 3.57 ± 2.57 μm2 have achieved, lattice structure,...
Flexible pressure sensors play significant roles in wearable devices, electronic skins, and human-machine interface (HMI). However, it remains challenging to develop flexible piezoresistive with outstanding comprehensive performances, especially excellent long-term durability. Herein, a facile "interfacial locking strategy" has been developed fabricate metal aerogel-based sensitivity prominent stability. The strategy broke the bottleneck of intrinsically poor mechanical properties aerogels...