A5100382892- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Supercapacitor Materials and Fabrication
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Advancements in Battery Materials
- Fuel Cells and Related Materials
- Advanced Battery Materials and Technologies
- Layered Double Hydroxides Synthesis and Applications
- Electrochemical Analysis and Applications
- Nanomaterials for catalytic reactions
- Gas Sensing Nanomaterials and Sensors
- CO2 Reduction Techniques and Catalysts
- Conducting polymers and applications
- Graphene research and applications
- Advanced Sensor and Energy Harvesting Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Copper-based nanomaterials and applications
- Quantum Dots Synthesis And Properties
- Ionic liquids properties and applications
- Graphene and Nanomaterials Applications
- ZnO doping and properties
- Nanoparticle-Based Drug Delivery
- Carbon Nanotubes in Composites
- Advanced Battery Technologies Research
Beijing University of Chemical Technology
2016-2025
State Key Laboratory of Chemical Engineering
2011-2025
Guangzhou University of Chinese Medicine
2022-2025
Hubei University of Medicine
2024-2025
Suzhou Guangji Hospital
2025
Soochow University
2025
University of Science and Technology of China
2023-2024
Tsinghua University
2003-2024
Harbin University of Science and Technology
2023-2024
Peking University
2001-2024
It is known that many potent, often aromatic drugs are water insoluble, which has hampered their use for disease treatment. In this work, we functionalized nanographene oxide (NGO), a novel graphitic material, with branched polyethylene glycol (PEG) to obtain biocompatible NGO−PEG conjugate stable in various biological solutions, and used them attaching hydrophobic molecules including camptothecin (CPT) analogue, SN38, noncovalently via π−π stacking. The resulting NGO−PEG−SN38 complex...
Two-dimensional graphene offers interesting electronic, thermal, and mechanical properties that are currently being explored for advanced electronics, membranes, composites. Here we synthesize explore the biological applications of nano-graphene oxide (NGO), i.e., single-layer sheets down to a few nanometers in lateral width. We develop functionalization chemistry order impart solubility compatibility NGO environments. obtain size separated pegylated soluble buffers serum without...
Although biomedical applications of carbon nanotubes have been intensively studied in recent years, its sister, graphene, has rarely explored biomedicine. In this work, for the first time we study vivo behaviors nanographene sheets (NGS) with polyethylene glycol (PEG) coating by a fluorescent labeling method. fluorescence imaging reveals surprisingly high tumor uptake NGS several xenograft mouse models. Distinctive from PEGylated nanotubes, shows interesting including highly efficient...
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.
We show that large surface areas exist for supramolecular chemistry on single-walled carbon nanotubes (SWNTs) prefunctionalized noncovalently or covalently by common surfactant acid-oxidation routes. Water-soluble SWNTs with poly(ethylene glycol) (PEG) functionalization via these routes allow surprisingly high degrees of π-stacking aromatic molecules, including a cancer drug (doxorubicin) ultrahigh loading capacity, widely used fluorescence molecule (fluorescein), and combinations molecules....
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...
The adhesion of as-formed gas bubbles on the electrode surface usually impedes mass-transfer kinetics and subsequently decreases electrolysis efficiency. Here it is demonstrated that nanostructured MoS2 films conductive substrates show a faster hydrogen evolution reaction (HER), current increase, more-stable working state than their flat counterpart by significantly alleviating electrode. This study clearly reveals importance nano-porous structure for HER, which should be general beneficial...
A 3D architecture of NiFe-LDH has been found to be very active for electrochemical oxygen evolution reaction.
Significance Electrolysis of water to generate hydrogen fuel could be vital the future renewable energy landscape. Electrodes that can sustain seawater splitting without chloride corrosion address issue freshwater scarcity on Earth. Herein, a hierarchical anode consisting nickel–iron hydroxide electrocatalyst layer uniformly coated sulfide formed Ni substrate was developed, affording superior catalytic activity and resistance in electrolysis. In situ-generated polyanion-rich passivating...
Tungsten carbide is one of the most promising electrocatalysts for hydrogen evolution reaction, although it exhibits sluggish kinetics due to a strong tungsten-hydrogen bond. In addition, tungsten carbide's catalytic activity toward oxygen reaction has yet be reported. Here, we introduce superaerophobic nitrogen-doped nanoarray electrode exhibiting high stability and as well driving efficiently in acid. Nitrogen-doping structure accelerate gas release from electrode, realizing current...
Abstract Binary NiFe layer double hydroxide (LDH) serves as a benchmark non‐noble metal electrocatalyst for the oxygen evolution reaction, however, it still needs relatively high overpotential to achieve threshold current density. Herein catalyst's electronic structure is tuned by doping vanadium ions into LDHs laminate forming ternary NiFeV reduce onset potential, achieving unprecedentedly efficient electrocatalysis water oxidation. Only 1.42 V (vs reversible hydrogen electrode (RHE), ≈195...
Abstract Single atom catalyst, which contains isolated metal atoms singly dispersed on supports, has great potential for achieving high activity and selectivity in hetero-catalysis electrocatalysis. However, the stability of single their interaction with support still remains a mystery. Here we show stable atomic ruthenium catalyst anchoring surface cobalt iron layered double hydroxides, possesses strong electronic coupling between hydroxides. With 0.45 wt.% loading, exhibits outstanding...
In this paper, we describe how WO3 hollow spheres have been synthesized in solution phase by the controlled hydrolysis of WCl6 using novel carbon microspheres as templates. All products were characterized X-ray powder diffraction (XRD), scanning electronic microscopy (SEM), and transmission electron (TEM). The as-synthesized had large diameters about 400 nm thin shells 30 composed numerous small nanocrystals. Prompted porous structure crystal size shell wall, constructed hollow-sphere gas...
Silver nanowires with different diameters were synthesized by a hydrothermal chemical method. The elastic properties of the outer ranging from 20 to $140\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ measured using contact atomic force microscopy. apparent Young modulus is found decrease increase diameter. When diameter silver larger than $100\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$, approaches constant value. size dependence attributed surface effect, which includes effects stress, oxidation layer,...
Great attention has been focused on the design of electrocatalysts to enable electrochemical water splitting-a technology that allows energy derived from renewable resources be stored in readily accessible and non-polluting chemical fuels. Herein we report a bifunctional nanotube-array electrode for splitting alkaline electrolyte. The requires overpotentials 58 mV 184 hydrogen oxygen evolution reactions respectively, meanwhile maintaining remarkable long-term durability. prominent...
Carbon spheres are used as templates to prepare semiconductor hollow of Ga2O3 (depicted) and GaN. The thickness uniformity the final products predetermined by active layer carbon spheres. diameter can be adjusted in range 100 nm 1.5 μm, which covers band gaps spectral regime from UV near infrared.
ConspectusGas-involving electrochemical reactions, including gas evolution reactions and consumption are essential components of the energy conversion processes gathering elevating attention from researchers. Besides development highly active catalysts, management during gas-involving is equally critical for industrial applications to achieve high reaction rates (hundreds milliamperes per square centimeter) under practical operation voltages. Biomimetic surfaces, which generally show regular...
The development of highly efficient bifunctional electrocatalysts for both hydrogen evolution reaction (HER) and oxygen (OER) is crucial improving the efficiency overall water splitting, but still remains challenging issue. Herein, 3D self‐supported Fe‐doped Ni 2 P nanosheet arrays are synthesized on foam by hydrothermal method followed in situ phosphorization, which serve as splitting. as‐synthesized (Ni 0.33 Fe 0.67 ) with moderate doping shows an outstanding OER performance, only requires...
Abstract The role of vacancy defects is demonstrated to be positive in various energy‐related processes. However, introducing into single‐crystalline nanostructures with given facets and studying their defect effect on electrocatalytic properties remains a great challenge. Here this study deliberately introduces oxygen ultrathin Co 3 O 4 nanosheets O‐terminated {111} by mild solvothermal reduction using ethylene glycol under alkaline condition. As‐prepared defect‐rich show low overpotential...