A5069379580- Electrocatalysts for Energy Conversion
- Electrochemical Analysis and Applications
- Electrochemical sensors and biosensors
- Advanced battery technologies research
- Advanced biosensing and bioanalysis techniques
- Fuel Cells and Related Materials
- Catalytic Processes in Materials Science
- Gold and Silver Nanoparticles Synthesis and Applications
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Advancements in Battery Materials
- Advanced Nanomaterials in Catalysis
- Nanomaterials for catalytic reactions
- Nanocluster Synthesis and Applications
- Graphene research and applications
- Quantum Dots Synthesis And Properties
- Advanced Photocatalysis Techniques
- Biosensors and Analytical Detection
- Copper-based nanomaterials and applications
- Physics of Superconductivity and Magnetism
- CO2 Reduction Techniques and Catalysts
- Advanced Memory and Neural Computing
- Magnetic properties of thin films
- Analytical Chemistry and Sensors
- Molecular Junctions and Nanostructures
Peking University
2016-2025
University of Science and Technology of China
2025
People's Government of Yunnan Province
2025
University of Jinan
2023-2024
Central South University
2015-2024
Peking University Third Hospital
2024
Laoshan Laboratory
2024
Union Hospital
2021
Huazhong University of Science and Technology
2021
Los Alamos National Laboratory
2013-2017
An activity lift for platinum Platinum is an excellent but expensive catalyst the oxygen reduction reaction (ORR), which critical fuel cells. Alloying with other metals can create shells of on cores less metals, increases its surface exposure, and compressive strain in layer also boost (see Perspective by Stephens et al. ). Bu produced nanoplates—platinum-lead covered shells—that were tensile strain. These nanoplates had high stable ORR activity, theory suggests arises from optimizing...
In this paper, we developed a green and facile approach to the synthesis of chemically converted graphene nanosheets (GNS) based on reducing sugars, such as glucose, fructose sucrose using exfoliated graphite oxide (GO) precursor. The obtained GNS is characterized with atomic force microscopy, UV−visible absorption spectroscopy, transmission electron X-ray photoelectron so on. merit method that both agents themselves oxidized products are environmentally friendly. It should be noted that,...
We report selective electrocatalytic reduction of carbon dioxide to monoxide on gold nanoparticles (NPs) in 0.5 M KHCO3 at 25 °C. Among monodisperse 4, 6, 8, and 10 nm NPs tested, the 8 Au show maximum Faradaic efficiency (FE) (up 90% -0.67 V vs reversible hydrogen electrode, RHE). Density functional theory calculations suggest that more edge sites (active for CO evolution) than corner competitive H2 evolution reaction) NP surface facilitates stabilization intermediates, such as COOH*,...
Graphene nanosheet, the hottest material in physics and materials science, has been studied extensively because of its unique electronic, thermal, mechanical, chemical properties arising from strictly 2D structure potential technical applications. Particularly, these remarkable characteristics enable it to be a promising candidate as new support load metal nanoparticles (NPs) for application fuel cells. However, constructing high-quality graphene/bimetallic NP hybrids with high...
Advances in chemical syntheses have led to the formation of various kinds nanoparticles (NPs) with more rational control size, shape, composition, structure and catalysis. This review highlights recent efforts development Pt non-Pt based NPs into advanced nanocatalysts for efficient oxygen reduction reaction (ORR) under fuel-cell conditions. It first outlines shape controlled synthesis their shape-dependent ORR. Then it summarizes studies alloy core-shell electronic (alloying) strain...
Comprising abundant interfaces, multicomponent heterostructures can integrate distinct building blocks into single entities and yield exceptional functionalities enabled by the synergistic components. Here we report an efficient approach to construct one-dimensional metal/sulfide directly sulfuring highly composition-segregated platinum-nickel nanowires. The possess a high density of interfaces between nickel sulfide components, which cooperate synergistically towards alkaline hydrogen...
The development of nanoscience and nanotechnology has inspired scientists to continuously explore new electrode materials for constructing an enhanced electrochemical platform sensing. In this article, we proposed a Pt nanoparticle (NP) ensemble-on-graphene hybrid nanosheet (PNEGHNs), material, which was rapidly prepared through one-step microwave-assisted heating procedure. advantages PNEGHNs modified glassy carbon (GCE) (PNEGHNs/GCE) are illustrated from comparison with the graphenes (GNs)...
Seven-nanometer FePt nanoparticles (NPs) were synthesized and assembled on graphene (G) by a solution-phase self-assembly method. These G/FePt NPs more active durable catalyst for oxygen reduction reaction (ORR) in 0.1 M HClO4 than the same or commercial Pt deposited conventional carbon support. The annealed at 100 °C 1 h under Ar + 5% H2 exhibited specific ORR activities of 1.6 mA/cm2 0.512 V 0.616 0.557 (vs Ag/AgCl). As comparison, (2–3 nm) had 0.271 0.07 potentials. also much stable...
Cyclodextrins (CDs) are oligosaccharides composed of six, seven, or eight glucose units (α-, β-, γ-CD, respectively), which toroidal in shape with a hydrophobic inner cavity and hydrophilic exterior. These interesting characteristics can enable them to bind selectively various organic, inorganic biological guest molecules into their cavities form stable host−guest inclusion complexes nanostructured supramolecular assemblies cavity. On the other hand graphene nanosheet (GN), rising-star...
Organic-inorganic lead-halide perovskites have been the subject of recent intense interest due to their unusually strong photovoltaic performance. A new addition perovskite family is all-inorganic Cs-Pb-halide nanocrystals, or quantum dots, fabricated via a moderate-temperature colloidal synthesis. While being only recently introduced research community, these nanomaterials already shown promise for range applications from color-converting phosphors and light-emitting diodes lasers, even...
MOF-derived Co@Co<sub>3</sub>O<sub>4</sub>@C core@bishell nanoparticles encapsulated into a highly ordered porous carbon matrix show very high catalytic activity and stability toward the oxygen reduction reaction.
This paper demonstrated for the first time a simple wet-chemical strategy synthesizing hemin−graphene hybrid nanosheets (H-GNs) through π−π interactions. Significantly, this new material possesses advantages of both hemin and graphene exhibits three interesting properties. First, H-GNs have intrinsic peroxidase-like activity, which can catalyze reaction peroxidase substrate, due to existence on surface. Second, their dispersion follow 2D Schulze−Hardy rule, that is say, coagulation in...
Lead-halide-based perovskites have been the subject of numerous recent studies largely motivated by their exceptional performance in solar cells. Electronic and optical properties these materials commonly controlled varying composition (e.g., halide component) and/or crystal structure. Use nanostructured forms can provide additional means for tailoring functionalities via effects quantum confinement wave function engineering. Furthermore, it may enable applications that explicitly rely on...
We propose an ingenious method for synthesizing cross-linked hollow fluorescent carbon nanoparticles (HFCNs) with green emission by simply mixing acetic acid, water, and diphosphorus pentoxide. This is automatic without external heat treatment to rapidly produce large quantities of HFCNs, in contrast other syntheses that required high temperature, complicated operations, or long reaction times. Characterizations HFCNs through high-resolution transmission electron microscopy, infrared/Raman...
Doping fluorescent carbon dots (DFCDs) with heteroatoms have recently become of great interest compared to traditional materials because it provides a feasible and new way tune the intrinsic properties quantum (CQDs) graphene (GQDs) achieve applications for them in different fields. Since first report on nitrogen (N) doped GQDs 2012, more effort is being focused exploring procedures making types DFCDs heteroatoms. This mini review will summarize recent research progress DFCDs. It reviews...
Abstract The grand challenge in the development of atomically dispersed metallic catalysts is their low metal-atom loading density, uncontrollable localization and ambiguous interactions with supports, posing difficulty maximizing catalytic performance. Here, we achieve an interface catalyst consisting atomic cobalt array covalently bound to distorted 1T MoS 2 nanosheets (SA Co-D ). phase transforming from 2H D-1T, induced by strain lattice mismatch formation Co-S covalent bond between Co...
Good support: A solution-phase self-assembly approach leads to Co/CoO core/shell nanoparticles deposited on graphene (G–Co/CoO NPs). Their catalytic activity for the oxygen reduction reaction in O2-saturated KOH solution depends thickness of CoO shell (green picture). The optimized G–Co/CoO NPs have a comparative and better stability than commercial Pt NP catalyst supported carbon (C–Pt). Detailed facts importance specialist readers are published as "Supporting Information". Such documents...
A facile and general method has been developed to synthesize well-defined PdPt PdAu alloy nanowires, which exhibit significantly enhanced activity towards small molecules, such as ethanol, methanol, glucose electro-oxidation in an alkaline medium. Considering the important role of one-dimensional nanowires electrocatalytic systems, present Pd-based nanostructures could offer a promising new class advanced electrocatalysts for direct alcohol fuel cells electrochemical sensors. Detailed facts...