A5100348455- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Nanomaterials for catalytic reactions
- Advanced battery technologies research
- Copper-based nanomaterials and applications
- Fuel Cells and Related Materials
- Quantum Dots Synthesis And Properties
- Luminescence Properties of Advanced Materials
- Metal-Organic Frameworks: Synthesis and Applications
- ZnO doping and properties
- CO2 Reduction Techniques and Catalysts
- Nanocluster Synthesis and Applications
- X-ray Diffraction in Crystallography
- Gas Sensing Nanomaterials and Sensors
- Crystallization and Solubility Studies
- Advancements in Battery Materials
- Catalysis and Hydrodesulfurization Studies
- Catalysis and Oxidation Reactions
- Asymmetric Hydrogenation and Catalysis
- Supercapacitor Materials and Fabrication
- Electrochemical Analysis and Applications
- Covalent Organic Framework Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Bone Tissue Engineering Materials
Tsinghua University
2016-2025
Liaoning General Aviation Research Institute
2018-2025
Wenzhou University
2025
Shenzhen University
2025
Hebei University
2024-2025
Guangxi University
2025
University of Chinese Academy of Sciences
2012-2025
Dalian Medical University
2025
First Affiliated Hospital of Dalian Medical University
2025
Qingdao Institute of Bioenergy and Bioprocess Technology
2021-2025
Giving Electrocatalysts an Edge Platinum (Pt) is excellent catalyst for the oxygen-reduction reaction (ORR) in fuel cells and electrolyzers, but it too expensive scarce widespread deployment, even when dispersed as Pt nanoparticles on carbon electrode supports (Pt/C). Alternatively, Chen et al. (p. 1339 , published online 27 February; see Perspective by Greer ) made highly active ORR catalysts dissolving away interior of rhombic dodecahedral PtNi 3 nanocrystals to leave Pt-rich Ni edges....
All wrapped up: Carbon-encapsulated metal nanoparticles, carbon microspheres decorated with and particles layered structures are all accessible by means of a method based on hydrothermal treatment glucose, which produces monodisperse colloidal reactive surfaces. The picture shows silver-cored spheres obtained using silver nanoparticles as seeds.
Abstract A new strategy for achieving stable Co single atoms (SAs) on nitrogen‐doped porous carbon with high metal loading over 4 wt % is reported. The based a pyrolysis process of predesigned bimetallic Zn/Co metal–organic frameworks, during which can be reduced by carbonization the organic linker and Zn selectively evaporated away at temperatures above 800 °C. spherical aberration correction electron microscopy extended X‐ray absorption fine structure measurements both confirm atomic...
Particularly uniform: Monodisperse ferrite microspheres can be synthesized to have diameters of about 200–800 nm (TEM image, left). High-resolution TEM analysis (image, right and inset) shows that each microsphere is a single crystal. Their hydrophilic magnetic properties impart the microparticles many potential uses in electronics biomedicine.
Abstract The development of low‐cost, efficient, and stable electrocatalysts for the oxygen reduction reaction (ORR) is desirable but remains a great challenge. Herein, we made highly reactive isolated single‐atom Fe/N‐doped porous carbon (ISA Fe/CN) catalyst with Fe loading up to 2.16 wt %. showed excellent ORR performance half‐wave potential ( E 1/2 ) 0.900 V, which outperformed commercial Pt/C most non‐precious‐metal catalysts reported date. Besides exceptionally high kinetic current...
The construction of highly active and stable non-noble-metal electrocatalysts for hydrogen oxygen evolution reactions is a major challenge overall water splitting. Herein, we report novel hybrid nanostructure with CoP nanoparticles (NPs) embedded in N-doped carbon nanotube hollow polyhedron (NCNHP) through pyrolysis–oxidation–phosphidation strategy derived from core–shell ZIF-8@ZIF-67. Benefiting the synergistic effects between NPs NCNHP, CoP/NCNHP exhibited outstanding bifunctional...
We develop a host-guest strategy to construct an electrocatalyst with Fe-Co dual sites embedded on N-doped porous carbon and demonstrate its activity for oxygen reduction reaction in acidic electrolyte. Our catalyst exhibits superior performance, comparable onset potential (Eonset, 1.06 vs 1.03 V) half-wave (E1/2, 0.863 0.858 than commercial Pt/C. The fuel cell test reveals (Fe,Co)/N-C outperforms most reported Pt-free catalysts H2/O2 H2/air. In addition, this cathode metal is stable...
Single-atom catalysts often exhibit unexpected catalytic activity for many important chemical reactions because of their unique electronic and geometric structures with respect to bulk counterparts. Herein we adopt metal–organic frameworks (MOFs) assist the preparation a catalyst containing single Ni sites efficient electroreduction CO2. The synthesis is based on ionic exchange between Zn nodes adsorbed ions within cavities MOF. This single-atom exhibited an excellent turnover frequency CO2...
CeO2 is a catalytic material of exceptional technological importance, and the precise role oxygen vacancies crucial to greater understanding these oxide materials. In this work, two ceria nanorod samples with different types distributions were synthesized. A direct relationship between concentration larger size vacancy clusters reducibility/reactivity nanosized was revealed. These results may be an important step in designing active sites at surface metal
Nearly monodisperse single-crystalline Cu2O nanospheres were prepared by an effective solution method with NaBH4 as the reducing agent. Sensors based on them have good sensitivity to some flammable gases because thin films formed capacious interspaces and enough spherical surfaces interact (ppm level).
We develop an N-coordination strategy to design a robust CO2 reduction reaction (CO2RR) electrocatalyst with atomically dispersed Co-N5 site anchored on polymer-derived hollow N-doped porous carbon spheres. Our catalyst exhibits high selectivity for CO2RR CO Faradaic efficiency (FECO) above 90% over wide potential range from -0.57 -0.88 V (the FECO exceeded 99% at -0.73 and -0.79 V). The current density remained nearly unchanged after electrolyzing 10 h, revealing remarkable stability....
A selective-control hydrothermal method has been developed in the preparation of α- and β-MnO2 single-crystal nanowires. The crystal structure morphology final products can be influenced by concentration NH4+ SO42-.
Abstract The design of active, selective, and stable CO 2 reduction electrocatalysts is still challenging. A series atomically dispersed Co catalysts with different nitrogen coordination numbers were prepared their electroreduction catalytic performance was explored. best catalyst, two‐coordinate atoms, achieves both high selectivity superior activity 94 % formation Faradaic efficiency a current density 18.1 mA cm −2 at an overpotential 520 mV. turnover frequency reaches record value 18 200...
Titanate nanotubes were synthesized under hydrothermal conditions. The optimized synthesis (100-180 degrees C, longer than 48 h), thermal and stability, ion exchangeability consequent magnetic optical properties of the titanate systematically studied in this paper. First, with monodisperse pore-size distribution prepared. formation mechanism was also studied. Second, stability characterized X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), Fourier transform...
A pair to fret about: Biotinylated phosphor nanoparticles that emit upconversion luminescence have been taken with biotinylated Au nanoparticles, which act as energy acceptors, and the has applied determination of trace amounts avidin based on fluorescence resonant transfer (FRET; see picture).
Isolated single atomic site catalysts have attracted great interest due to their remarkable catalytic properties. Because of high surface energy, atoms are highly mobile and tend form aggregate during synthetic processes. Therefore, it is a significant challenge fabricate isolated with good stability. Herein, gentle method stabilize metal by constructing defects on the supports presented. As proof concept, Au supported defective TiO2 nanosheets prepared discovered that (1) can effectively...