A5046662106- Electrocatalysts for Energy Conversion
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- MXene and MAX Phase Materials
- Supercapacitor Materials and Fabrication
- Electrochemical Analysis and Applications
- Advanced Photocatalysis Techniques
- Electromagnetic wave absorption materials
- Electrochemical sensors and biosensors
- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Chemical Synthesis and Characterization
- Layered Double Hydroxides Synthesis and Applications
- Catalytic Processes in Materials Science
- CO2 Reduction Techniques and Catalysts
- Fuel Cells and Related Materials
- Extraction and Separation Processes
- Adsorption and biosorption for pollutant removal
- Enzyme Catalysis and Immobilization
- Metalloenzymes and iron-sulfur proteins
- Advanced Battery Technologies Research
- Metal-Organic Frameworks: Synthesis and Applications
- Graphene research and applications
- Polyoxometalates: Synthesis and Applications
Beijing Normal University
2016-2025
First Affiliated Hospital of Hebei Medical University
2021-2024
Hebei Medical University
2022-2024
Capital Medical University
2024
The University of Sydney
2022
University of Utah
2016-2021
Salt Lake Regional Medical Center
2018
Eindhoven University of Technology
2006-2008
Dutch Polymer Institute
2006-2008
Leiden University
2006
The design of low-cost yet high-efficiency electrocatalysts for hydrogen evolution reaction (HER) and oxygen (OER) over a wide pH range is highly challenging. We now report hierarchical co-assembly interacting MoS2 Co9S8 nanosheets attached on Ni3S2 nanorod arrays which are supported nickel foam (NF). This tiered structure endows high performance toward HER OER very broad range. By adjusting the molar ratio Co:Mo precursors, we have created CoMoNiS-NF- xy composites ( x: y means ratios...
Aqueous-phase oxygen evolution reaction (OER) is the bottleneck of water splitting. The formation O-O bond involves generation paramagnetic molecules from diamagnetic hydroxides. spin configurations might play an important role in aqueous-phase molecular electrocatalysis. However, spintronic electrocatalysis almost uncultivated land for exploration catalysis process. Herein, we present a novel magnetic FeIII site spin-splitting strategy, wherein electronic structure and states sites are...
We demonstrate fast, highly efficient concurrent removal of toxic oxoanions Se(VI) (SeO42–) and Se(IV) (SeO32–/HSeO3–) heavy metal ions Hg2+, Cu2+, Cd2+ by the MoS42– intercalated Mg/Al layered double hydroxide (MgAl-MoS4-LDH, abbr. MoS4-LDH). Using MoS4-LDH as a sorbent, we observe that presence Hg2+ greatly promotes capture SeO42–, while three (Hg2+, Cd2+) enable remarkable improvement in SeO32–/HSeO3–. For pair Se(VI)+Hg2+, exhibits outstanding rates (>99.9%) for both Se(VI), compared to...
The oxygen evolution reaction (OER) is the bottleneck limiting process of water splitting. OER involves recombination from diamagnetic singlet state OH or H2O to paramagnetic triplet O2. spin conservation for oxygenated intermediates must play an important role in OER. However, dynamic mechanism magnetic field-induced polarization still its infancy. Herein, based on spin-coupling interaction iron group elements, three typical layered double hydroxides (LDHs) were constructed study...
Electrospinning and annealing methods are applied to prepare cobalt nanoparticles decorated in N-doped carbon nanofibers (Co/N-C NFs) with solid macroporous structures. In detail, the nanocomposites synthesized by carbonization of as-electrospun polyacrylonitrile/cobalt acetylacetonate an argon atmosphere. The Co/N-C NFs have lengths up dozens microns average diameter ca. 500 nm possess abundant on both surface within fibers, nanoparticle size is about 20 nm. a hierarchical pore structure,...
Ultrathin two-dimensional metal-organic frameworks (2D MOFs) have the potential to improve performance of Li-O2 batteries with high O2 accessibility, open catalytic active sites, and large surface areas. To obtain highly efficient cathode catalysts for aprotic batteries, a facile ultrasonicated method has been developed synthesize three kinds 2D MOFs Co-MOF, Ni-MOF, Mn-MOF). Contributing from inherent sites Mn-O framework, discharge specific capacity 9464 mAh g-1 is achieved Mn-MOF cathode,...
Given the high costs and stoichiometric amounts of reduced nicotinamide adenine dinucleotide (NADH) required by many oxidoreductases used for organic synthesis pharmaceutical industry, there is a need efficient reductive regeneration NADH from its oxidized form, NAD+. Bioelectrocatalytic methods involving diaphorase redox mediator have shown promise; however, strong mediators needed this system are scarce, generally unstable, require downstream separation. The immobilization in...
Abstract The new material polypyrrole/MoS 4 2− (MoS ‐Ppy), prepared by ion‐exchange of NO 3 ‐ ‐Ppy with MoS , displays high acid stability and excellent uptake for heavy metal ions such as Hg 2+ Ag + Cu Pb . different maximum adsorption capacities ( q m ) depend on the various binding modes arising from thiophilicity these ions. removals reach >99.6% within 5 min, highly toxic >98% removal achieves at 1 min. At strong limit, exceptional (Ag 725 mg g −1 places top materials removal....
Two-dimensional MXene, a significant member of the two-dimensional family, has attracted much interest in physics, energy evolution, environmental science, and nanomedicine. However, acute toxicity fluoride-based synthetic procedures remains an impediment to large-scale fabrication applications. It is urgent need develop innocuous effective protocol for MXene synthesis. Therefore, we developed facile, rapid fluoride-free electrochemical etching strategy based on selective corrosion Al layers...
Increasing greenhouse gas emissions have resulted in greater motivation to find novel carbon dioxide (CO2 ) reduction technologies, where the of CO2 valuable chemical commodities is desirable. Molybdenum-dependent formate dehydrogenase (Mo-FDH) from Escherichia coli a metalloenzyme that able interconvert and . We describe low-potential redox polymer, synthesized by facile method, contains cobaltocene (grafted poly(allylamine), Cc-PAA) simultaneously mediate electrons Mo-FDH immobilize at...
Urea, as a prospective energy source, is rarely utilized for lack of effective catalysts to overcome its sluggish kinetics during electrolysis. Exploiting low-cost and high-efficiency accelerate the urea oxidation reaction (UOR) does make sense it can relieve not only shortage but also water contamination problems. In this work, Ni3S2 nanosheets grown on Ni foam with different amounts Mn2+ doping were developed useful electrocatalysts toward UOR. The experimental computational methods...
Redox polymers have been an expanding research area over the last 30 years. The design of redox for mediated bioelectrocatalysis revolutionized glucose biosensors in early 1990s. These concepts were then applied to biofuel cells 2000s, but it was not until recently that researchers further translated these fields electrosynthesis, supercapacitors, and flow batteries. This review will give a short background work field primarily discuss recent applications
MOFs present potential application in electrocatalysis. The structure-activity of the Ni-MOFs with different morphologies, nanowires, neurons, and urchins is systemically investigated. were controllably synthesized via facile solvothermal method. Among them, Ni-MOF nanowires are endowed highest electrocatalytic activity due to unique structure, more exposed active sites, lower charge transfer resistance, fast direct electron 1D structures. typical morphology ca. 10 nm diameter several...
The new material Polypyrrole–Mo3S13 (abbr. Mo3S13–Ppy) is a prepared by ion-exchange between Ppy-NO3 and (NH4)2Mo3S13. Mo3S13–Ppy was designed to exhibit strong selectivity for Ag+ highly toxic Hg2+ in mixtures with other ions. It displays an apparent ranking of > ≥ Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Pb2+. affinity confirmed extremely high distribution coefficients (Kd) (∼107 mL/g) remarkable removal efficiencies (>99.99%), resulting <1 ppb concentrations these Furthermore, achieved excellent...
The development of high-performance, low-cost, and long-lasting electrocatalysts for both hydrogen evolution reaction (HER) oxygen (OER) is urgently needed effective electrochemical water splitting. In the present study, an engineering process was employed to prepare "Lewis base-hungry" amorphous-crystalline nickel borate-nickel sulfide (Ni3(BO3)2-Ni3S2) heterostructures, which exhibited unprecedentedly high electrocatalytic activity toward OER HER in alkaline media. optimal...
Two-dimensional MXene with high conductivity has metastable Ti atoms and inert functional groups on the surface, greatly limiting application in surface-related electrocatalytic reactions. A surface-functionalized nitrogen-doped two-dimensional TiO2/Ti3C2Tx heterojunction (N-TiO2/Ti3C2Tx) was fabricated theoretically, optimized active sites. Based conductive substrate of Ti3C2Tx, remained metallic efficiently accelerated transfer Li+ electrons electrode. More importantly, precise regulation...
Lithium oxygen (Li–O2) batteries have shown great potential as new energy-storage devices due to the high theoretical energy density. However, there are still substantial problems be solved before practical application, including large overpotential, low efficiency, and poor cycle life. Herein, we successfully synthesized a RuO2–Co3O4 nanohybrid with rich vacancy specific surface area. The Li–O2 based on obviously reduced overpotential improved circulatory property, which can stably for more...
Abstract The consumption of fossil fuels has contributed to global warming and other problems. It is urgent exploit progressive, low‐cost, environmentally friendly energy storage devices with super high density. Rechargeable lithium oxygen batteries (LOBs) a theoretical density (≈11400 Wh kg −1 ) are one the most promising chemical power supplies. MXenes have recently emerged in conversion due their superior conductivity adjustable structural properties. Here, this paper summarizes latest...
Abstract Due to the low economic benefits and environmental pollution of traditional recycling methods, disposal spent LiFePO 4 (SLFP) presents a significant challenge. The capacity fade SLFP cathode is primarily caused by lithium loss formation Fe (III) phase. Herein, synergistic repair effect proposed achieve defect multi‐functional interface construction for direct regeneration SLFP. Tannic acid (TA) forms compact coating precursor carbon layer on with abundant functional groups creates...
The side reactions accompanying the charging and discharging process, as well difficulty in decomposing discharge product lithium peroxide, have been important issues research field of lithium-oxygen batteries for a long time. Here, single atom Ta supported by Co3O4 hollow sphere was designed synthesized cathode catalyst. forms an electron transport channel through Ta-O-Co structure to stabilize octahedral Co sites, forming strong adsorption with reaction intermediates ultimately film-like...