A5101878929- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- Electromagnetic wave absorption materials
- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Gas Sensing Nanomaterials and Sensors
- Nanocluster Synthesis and Applications
- ZnO doping and properties
- Diamond and Carbon-based Materials Research
- Conducting polymers and applications
- Adsorption and biosorption for pollutant removal
- Analytical Chemistry and Sensors
- Power Systems and Technologies
- Smart Grid and Power Systems
- Supercapacitor Materials and Fabrication
- Metal and Thin Film Mechanics
- Advanced battery technologies research
- Semiconductor materials and devices
- Electrocatalysts for Energy Conversion
- Graphene research and applications
- 2D Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Transition Metal Oxide Nanomaterials
Yellow River Institute of Hydraulic Research
2025
Henan University of Technology
2024
Academy of State Administration of Grain
2024
Northwest University
2016-2024
Shandong University
2022-2024
Qingdao University of Science and Technology
2023-2024
Hebei Medical University
2015-2024
Fourth Hospital of Hebei Medical University
2015-2024
Zhejiang University
2024
Huaibei Normal University
2022-2024
The design of efficient catalysts that synergistically promote *H2O decomposition, H2 formation, and desorption is critical to accelerate hydrogen evolution reaction (HER) kinetics but remains a significant challenge. Herein, we an catalyst Pt/FeOOH@NiFe LDHs with Pt single-atom cluster distribution induced by amorphous FeOOH. low content 2 wt % exhibit ultralow HER overpotentials 20 85 mV in alkaline media (5 40 acidic media) achieve the current densities 10 100 mA cm–2. specific activity...
Abstract Hydrogen peroxide (H 2 O ) is a highly value‐added and environmental‐friendly chemical with various applications. The production of H by electrocatalytic 2e − oxygen reduction reaction (ORR) has emerged as promising alternative to the energy‐intensive anthraquinone process. High selectivity Catalysts combining superior activity are critical for efficient electrosynthesis . Earth‐abundant transition metal selenides (TMSs) being discovered classic stable, low‐cost, active selective...
Atomic compositions and molar extinction coefficients of PbSe semiconductor nanocrystals were determined by atomic absorption spectrometry, UV-vis-NIR spectrophotometry, transmission electron microscopy. The Pb/Se ratio was found to be size-dependent with a systematic excess Pb atoms in the nanocrystal system. Experimental results indicated that individual nonstoichiometric, consisting core an extra layer atoms. For these nonstoichiometric nanocrystals, we proposed new computational approach...
This article reports a reproducible and facile approach to synthesize faceted copper nanocrystals (Cu NCs) using an inexpensive oxide as precursor. By simply prolonging the reaction time, Cu cubes polyhedrons were successfully produced, mean size could be effectively controlled in range of 9 21 nm. The catalytic activities investigated by photometrically monitoring reduction p-nitrophenol excess NaBH4. kinetics at different temperatures determine activation parameters. Our investigations...
Coagulation/flocculation (CF) by use of alum and cationic polymer polyDADMAC, was performed as a pretreatment for remediation oil sands process-affected water (OSPW). Various factors were investigated the process optimized to improve efficiency removal organic carbon turbidity. Destabilization particles occurred through charge neutralization adsorption hydroxide precipitates. Scanning electron microscope images revealed that resultant flocs compact. The CF significantly reduced...
Pressure quenching of optical emission largely limits the potential application many materials in pressure-sensing devices, since intensity is crucially connected to performance. Boosting visible-light at high pressure is, therefore, an important goal. Here, we demonstrate that CdSe nanocrystals (NCs) can be enhanced by more than order magnitude compression. The brightest achieved pressures corresponding phase transitions different sized NCs. Very bright blue obtained exploiting increase...
A nontoxic, simple, inexpensive, and reproducible strategy, which meets the standard of green chemistry, is introduced for synthesis copper nanocrystals (Cu NCs) with olive oil as both reducing agent capping agent. By changing reaction parameters, shape, size surface structure Cu NCs can be well controlled. The obtained nanocubes show excellent catalytic properties reduction dyes CO oxidation. Moreover, prepared substrates exhibit enhanced Raman scattering (SERS) activity 4-mercaptopyridine...
This review is focused on the recent developments of synthesis, mechanism and applications IV–VI semiconductor nanocrystals (NCs), including germanium-, tin- lead-based chalcogenides NCs. First all, we systematically introduce a series investigations preparation with controllable size shape via wide variety methods. Corresponding growth mechanisms are also discussed. Moreover, promising potential NCs as building blocks respect to energy, sensors catalysis highlighted. For purpose enhancing...
In this paper, we introduce a facile and phosphine-free one-step solution method to synthesize size- shape-controlled bismuth sulfide (Bi2S3) with hierarchical architectures. Changing variables, such as the reaction temperature, ratio of precursors, concentration oleic acid were observed influence resultant shape Bi2S3 microstructures. For formation architectures, crystal splitting growth mechanism played dominant role. The absorption spectra recorded at room which revealed that obtained...
In this paper, we developed a one-pot solution strategy to synthesize copper selenide NCs with controllable shape and structure. By changing the precursors in reaction, (Cu2−xSe nanoparticles, nanorods CuSe nanoplates) various morphologies could be achieved. We proposed possible mechanism explain influence of on found that chemical activities played key roles crystal structures final products. Moreover, electrical transport properties as-prepared products were investigated. The have great...
1D nanoscale photodetectors have been extensively investigated for the unique geometry structure and novel physical chemical properties. The CdS materials received much attention in field due to its high photosensitivity fast response, while how achieve responsivity is still development, despite it crucial target excellent photodetector. Single crystal nanorods (NRs) are synthesized on SiO 2 /Si substrate over large scale via vapor deposition method. individual single nanorod photodetector...
Abstract Electrocatalytic oxygen reduction reaction (ORR) to prepare H 2 O in acidic medium has the advantages of green, safety, and portability, which shows broad development prospects. However, it still suffers from low catalyst activity, insufficient selectivity, high cost. Herein, Pt 1 /CoSe with ultralow 0.01 wt.% atomic distribution was synthesized by a simple hydrothermal method. The content exhibits long‐term stability for ORR ‐saturated 0.1 M HClO 4 . onset potential is as 0.75 V...
In the field of electromagnetic wave (EMW) absorption, development nonmagnetic materials with strong absorptive performance, low filling ratio, and wide bandwidth is significant importance. this work, five morphologies In2O3 nanomaterials are prepared by simple hydrothermal annealing processes. The products (including lamellar flower-, lychee-, cheese-, nanocube-, urchin-like In2O3) obtained using different surfactants. experimental results indicate that flower-like has a minimum reflection...