A5100745822- Catalytic Processes in Materials Science
- Electrocatalysts for Energy Conversion
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Carbon Nanotubes in Composites
- Supercapacitor Materials and Fabrication
- Electrochemical Analysis and Applications
- Advancements in Battery Materials
- Graphene research and applications
- Advanced battery technologies research
- Conducting polymers and applications
- Nanomaterials for catalytic reactions
- Electrochemical sensors and biosensors
- CO2 Reduction Techniques and Catalysts
- Mesoporous Materials and Catalysis
- Fuel Cells and Related Materials
- Quantum Dots Synthesis And Properties
- ZnO doping and properties
- Advanced Battery Materials and Technologies
- Catalysts for Methane Reforming
- Advanced Photocatalysis Techniques
- Catalysis and Oxidation Reactions
- Diamond and Carbon-based Materials Research
- Nanowire Synthesis and Applications
- 2D Materials and Applications
Karamay Central Hospital of Xinjiang
2023
Shanghai University of Electric Power
2014-2021
Shanghai Institute of Pollution Control and Ecological Security
2019
Beijing Tongren Hospital
2015
Capital Medical University
2015
Fritz Haber Institute of the Max Planck Society
2010-2014
Max Planck Institute of Colloids and Interfaces
2013
University of Oxford
2006-2008
Beijing University of Chemical Technology
2004
Shenyang Pharmaceutical University
2001
Large‐area phosphorus‐doped carbon nanosheets (P‐CNSs) are first obtained from dots (CDs) through self‐assembly driving thermal treatment with Na catalysis. This is the time to realize conversion 0D CDs 2D doped phosphorus. The sodium storage behavior of material also investigated for time. As anode sodium‐ion batteries (SIBs), P‐CNSs exhibit superb performances electrochemical sodium. When cycled at 0.1 A g −1 , electrode delivers a high reversible capacity 328 mAh even current density 20...
Carbon dots inducing petal-like rutile TiO2 wrapped by ultrathin graphene-rich layers are proposed to fabricate superior anodes for sodium-ion batteries, featuring high-rate capabilities and long-term cyclelife, benefiting from promoted electron transport a shortened Na+ diffusion length. High capacities of 144.4 mA h g-1 (at 837.5 ) after 1100 cycles 74.6 3350 4000 delivered outstandingly.
Abstract Discussed are the recent experimental and theoretical results on palladium‐based catalysts for selective hydrogenation of alkynes obtained by a number collaborating groups in joint multi‐method multi‐material approach. The critical modification catalytically active Pd surfaces incorporation foreign species X into sub‐surface metal was observed situ spectroscopy X=H, C under conditions. Under certain conditions (low H 2 partial pressure) alkyne fragmentation leads to formation PdC...
Abstract A new class of ternary heterostructures consisting a reduced graphene oxide, molybdenum disulfide, and tungsten disulfide (rGO‐MoS 2 ‐WS ) is prepared through simple chemical method. According to Raman X‐ray photoelectron spectroscopy, MoS /WS heterostructure uniformly formed on the conductive rGO support. Furthermore, rGO‐MoS possesses s large surface area 109 m g −1 hierarchical pore architecture. When serving as electrode for supercapacitors, exhibits pseudocapacitive behavior in...
Nanosized, yet ordered: Active and selective Pd2Ga intermetallic compounds supported on carbon nanotubes have been synthesized applied to alkyne hydrogenation. Intermetallic the nanoscale are necessary achieve high mass activity, whereas ordered structures within form barriers for subsurface chemistry prevent large active ensembles Pd surface. Detailed facts of importance specialist readers published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset....
A constraint to industrial implementation of gold-catalyzed alkyne hydrogenation is that the catalytic activity was always inferior those other noble metals. In this work, gold supported on graphene oxide (Au/GO) and used in a application. 99% selectivity toward styrene with conversion phenylacetylene obtained at 60 °C, which 100 200 °C lower than optimal temperatures most previous reports Au catalysts. series gold- palladium-based reference catalysts were tested under same conditions for...
Hetero-epitaxial growth along three-dimensional (3D) interfaces from materials with an intrinsic large lattice mismatch is a key challenge today. In this work we report, for the first time, controlled synthesis of vertically aligned ZnO/ZnS core/shell nanorod arrays composed single crystalline wurtzite (WZ) ZnS conformally grown on ZnO rods 3D through simple two-step thermal evaporation method. Structural characterization reveals "(01–10)ZnO//(01–10)ZnS and [0001]ZnO//[0001]ZnS" epitaxial...
The fabrication of Ni-based heterostructures with controllable compositions (NiO/Ni, NiO and Ni) structures (core–shell, void shell, Ni core) on oxygen functionalized carbon nanotubes for effective methanol oxidation.
Nitrogen-doped honeycomb-like carbon framework supported nickel nanoparticles synthesized by a low-cost and scalable method for effective methanol oxidation.
The sidewall functionalisation of carbon nanotubes using the standard nitric acid treatment can be greatly enhanced by first removing amorphous present in sample.
Purification and opening of carbon nanotubes has been carried out by treatment as-made single-wall (SWNTs) with pure steam at 1 atm pressure. Treated samples have characterized high-resolution transmission electron microscopy IR Raman spectroscopy. Comparison between the purification standard nitric acid shows that is less aggressive toward damage to tubular nanotube wall structure forms fewer functional groups.
More than scratching the surface: The mechanism by which supported Pd nanoparticles (PdNPs) catalyze cross-coupling reactions is subject of debate. changes in PdNPs during coupling are studied exploiting modified carbon nanotubes (CNTs) as support materials. After catalysis, CNTs with scratched walls and surface crystalline distortions were discovered, offering insights into catalytic mechanism.
Purification and shortening of single-walled carbon nanotubes (SWNTs) is carried out by treatment with steam. During the steam purification graphitic shells coating catalytic metal particles are removed. Consequently, exposed can be easily dissolved hydrochloric acid. No damage to nanotube tubular structure observed, even after prolonged Samples characterized HRTEM, TGA, magnetic measurements, Raman spectroscopy, AFM, XPS.
Abstract The cyclic voltammetric responses of individual palladium‐coated carbon nanotubes are reported. Upon impact—from the solution phase—with electrified interface, nanoparticles act as nanoelectrodes catalyzing hydrogen‐oxidation reaction. At high overpotentials current is shown to reach a quasi‐steady‐state diffusion limit, allowing determination tube length. electrochemical response also reveals system be modulated by electrical contact between electrode and nanotube. This modulation...
Palladium dynamics: Under hydrogenation conditions, saturating over-active palladium by carbon diffusion leads to a stable and selective particle surface. By choosing supports with suitable geometric structures establishing strong interaction between metal particles, accumulated species can be regularly rearranged reaction-selective phases exposed (see figure). Detailed facts of importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not...
Palladium (Pd)-catalyzed selective hydrogenation of alkynes has been one the most studied reactions in last century. However, kinetic studies conducted to reveal catalyst's active centers have hindered because dynamic surface changes on Pd during reaction. In present study, bimetallic Pd-Au nanoparticles supported carbon nanotubes synthesized at room temperature as catalysts for phenylacetylene, which show effectively enhanced selectivity compared their monometallic counterparts. Structural...
Ni/NiO nanoparticles on phosphorus oxide-incorporated holey graphene sheets showed efficient catalytic activity and stability for hydrogen evolution reaction.