A5102937378- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Electrochemical Analysis and Applications
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- Nanomaterials for catalytic reactions
- CO2 Reduction Techniques and Catalysts
- Metal-Organic Frameworks: Synthesis and Applications
- Supercapacitor Materials and Fabrication
- Advanced Memory and Neural Computing
- MXene and MAX Phase Materials
- Molecular Junctions and Nanostructures
- Electronic and Structural Properties of Oxides
- Advancements in Battery Materials
- Hydrogen Storage and Materials
- Ammonia Synthesis and Nitrogen Reduction
Nanjing University of Aeronautics and Astronautics
2022-2025
Hebei University of Technology
2020-2021
Designing stable single-atom electrocatalysts with lower energy barriers is urgent for the acidic oxygen evolution reaction. In particular, atomic catalysts are highly dependent on kinetically sluggish acid-base mechanism, limiting reaction paths of intermediates. Herein, we successfully manipulate steric localization Ru single atoms at Co3O4 surface to improve by precise control anchor sites. The delicate structure design can switch mechanism from lattice (LOM) optimized adsorbate (AEM)....
Rational regulation of electrochemical reconfiguration and exploration activity origin are important foundations for realizing the optimization electrocatalyst activity, but rather challenging. Herein, we potentially develop a rapid complete strategy heterostructures CoC2O4 coated by MXene nanosheets (CoC2O4@MXene) during hydrogen evolution reaction (HER) process. The self-assembled CoC2O4@MXene nanotubular structure has high electronic accessibility abundant electrolyte diffusion channels,...
The ultrafast solution combustion synthesis of heterogeneous interface is developed to boost anodic organic upgrading reaction, which exhibits remarkable current density and faradaic efficiency benefiting from the strong electronic interaction.
The continuous oxidation and leachability of active sites in Ru-based catalysts hinder practical application proton-exchange membrane water electrolyzers (PEMWE). Herein, robust inter-doped tungsten-ruthenium oxide heterostructures [(Ru-W)Ox ] fabricated by sequential rapid metal thermomigration processes are proposed to enhance the activity stability acidic oxygen evolution reaction (OER). introduction high-valent W species induces valence oscillation Ru during OER, facilitating cyclic...
Abstract Coupling urea oxidation reaction (UOR) with hydrogen evolution (HER) is an effective energy‐saving technique for generation. However, exploring efficient bifunctional electrocatalysts under high current density still challenging. Herein, hierarchical Fe doped cobalt selenide coupled FeCo layered double hydroxide (Fe‐Co 0.85 Se/FeCo LDH) array as a self‐supported superior heterojunction electrode rationally designed both UOR and HER. The unique heterostructure facilitates electron...
The scalable production of inexpensive, efficient, and robust catalysts for oxygen evolution reaction (OER) that can deliver high current densities at low potentials is critical the industrial implementation water splitting technology. Herein, a series metal oxides coupled with Fe
Abstract Neutral oxygen evolution reaction (OER) with unique reactive environments exhibits extremely slow kinetics, posing significant challenges in the design of catalysts. Herein, a built‐in electric field between tungstate (Ni‐FeWO 4 ) adjustable work function and Lewis acid WO 3 is elaborately constructed to regulate asymmetric interfacial electron distribution, which promotes accumulation Fe sites tungstate. This decelerates rapid dissolution under OER potentials, thereby retaining...
Abstract Developing ruthenium‐based heterogeneous catalysts with an efficient and stable interface is essential for enhanced acidic oxygen evolution reaction (OER). Herein, we report a defect‐rich ultrathin boron nitride nanosheet support relatively independent electron donor acceptor sites, which serves as reservoir receiving station RuO 2 , realizing the rapid supply reception of electrons. Through precisely controlling interface, low OER overpotential only 180 mV (at 10 mA cm −2 )...
Demetalation caused by the electrochemical dissolution of metallic Fe atoms is a major challenge for practical application Fe─N─C catalysts. Herein, an efficient single Mn active site constructed to improve strength Fe─N bond, inhibiting demetalation effect Fe─N─C. acts as electron donor inducing more delocalized electrons reduce oxidation state increasing density, thereby enhancing bond and Fe. The oxygen reduction reaction pathway dissociation Fe─Mn dual sites can overcome high energy...
Realizing an efficient turnover frequency in the acidic oxygen evolution reaction by modifying configuration is crucial designing high-performance single-atom catalysts. Here, we report a "single atom-double site" concept, which involves activatable inert manganese atom redox chemistry Ru-Mn dual-site platform with tunnel Ni ions as trigger. In contrast to conventional catalysts, proposed allows direct intramolecular coupling driven intercalation effect, bypassing secondary deprotonation...
The space charge effect induced by high-quality heterojunctions is essential for efficient electrocatalytic processes. Herein, we delicately manipulate intermolecular transfer modifying substituents (-g = -CH3, -H, -NO2) with various electron donating/withdrawing capabilities in CoPc-g/CoS organic-inorganic heterostructures. CoPc-CH3, as a typical donor, transfers more electrons to CoS due the presence of forming strongest electric field and thus regulating dual active sites at interface....
Abstract Developing ruthenium‐based heterogeneous catalysts with an efficient and stable interface is essential for enhanced acidic oxygen evolution reaction (OER). Herein, we report a defect‐rich ultrathin boron nitride nanosheet support relatively independent electron donor acceptor sites, which serves as reservoir receiving station RuO 2 , realizing the rapid supply reception of electrons. Through precisely controlling interface, low OER overpotential only 180 mV (at 10 mA cm −2 )...
The neutral oxygen catalysis is an electrochemical reaction of the utmost importance in energy generation, storage application, and chemical synthesis. However, restricted availability protons poses a challenge to achieving kinetically favorable catalytic reactions. Here, we alter interfacial water orientation by adjusting Brønsted acidity at catalyst surface, break proton transfer limitation electrocatalysis. An unexpected role molecules improving activity revealed, namely, increasing...
The space charge effect induced by high‐quality heterojunctions is essential for efficient electrocatalytic processes. Herein, we delicately manipulate intermolecular transfer modifying substituents (‐g = ‐CH3, ‐H, ‐NO2) with various electron donating/withdrawing capabilities in CoPc‐g/CoS organic‐inorganic heterostructures. CoPc‐CH3, as a typical donor, transfers more electrons to CoS due the presence of forming strongest electric field and thus regulating dual active sites at interface....
Molecular catalysts play a critical role in regulating the selectivity of electrocatalytic CO2 reduction reaction (CO2RR), yet understanding ligand function is largely restricted to modulating electronic structure metal and kinetics. Herein, hydroxyl (-OH) introduced into sterically hindered amino-porphyrin (o-TAPP) synthesize atropisomers porphyrin- salicylimine-Cu (o-Cu-Por-Sa) with hydrogen-bonding interactions (O-H···O), enabling efficient selection CO CH4 under dual effects. Detailed...
Molecular catalysts play a critical role in regulating the selectivity of electrocatalytic CO2 reduction reaction (CO2RR), yet understanding ligand function is largely restricted to modulating electronic structure metal and kinetics. Herein, hydroxyl (‐OH) introduced into sterically hindered amino‐porphyrin (o‐TAPP) synthesize atropisomers porphyrin‐ salicylimine‐Cu (o‐Cu‐Por‐Sa) with hydrogen‐bonding interactions (O‐H···O), enabling efficient selection CO CH4 under dual effects. Detailed...
RuO 2 supported metal-deficient TiO substrate presents superior electrocatalytic activity for OER in acidic media, which is attributed to the introduction of Ti defects modulated local electronic structures Ru sites and substrate.
Abstract Transition‐metal oxides with a strain effect have attracted immense interest as cathode materials for fuel cells. However, owing to the introduction of heterostructures, substrates, or large number defects during synthesis strain‐bearing catalysts, not only is structure–activity relationship complicated but also their performance mediocre. In this study, mode reported. ions different electronegativities are intercalated into cryptomelane‐type manganese oxide octahedral molecular...
Abstract Doping engineering is an effective strategy to improve the electrocatalytic activity of manganese oxides by enhancing their poor electrical conductivity and oxygen adsorption capacity. Herein, p‐block aluminum group metal ions (Al 3+ , Ga In ) are introduced into cryptomelane‐type oxide octahedral molecular sieves (OMS‐2), leading p−d orbital hybridization between p‐orbitals metals d‐orbitals Mn, facilitating reduction reaction. The metal‐doped OMS‐2 exhibits excellent catalytic...