A5069312764- Electrocatalysts for Energy Conversion
- Ammonia Synthesis and Nitrogen Reduction
- Advanced Photocatalysis Techniques
- Advanced battery technologies research
- CO2 Reduction Techniques and Catalysts
- Catalytic Processes in Materials Science
- Caching and Content Delivery
- Electrochemical Analysis and Applications
- Copper-based nanomaterials and applications
- Chemical Reactions and Isotopes
- Nanomaterials for catalytic reactions
- Fuel Cells and Related Materials
- Hydrogen Storage and Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Asymmetric Hydrogenation and Catalysis
- Molecular Junctions and Nanostructures
- Covalent Organic Framework Applications
- Advanced Memory and Neural Computing
- Radical Photochemical Reactions
- Quantum Dots Synthesis And Properties
- Advancements in Battery Materials
- Catalysis and Oxidation Reactions
- Electrodeposition and Electroless Coatings
- Solar-Powered Water Purification Methods
- Machine Learning in Materials Science
Tianjin University
2019-2025
Tianjin University of Technology
2024
Ocean University of China
2022
Advanced Ceramics Manufacturing (United States)
2020
Ministry of Education Science and Technology
2020
Abstract Water electrolysis in alkaline electrolyte is an attractive way toward clean hydrogen energy via the evolution reaction (HER), whereas sluggish water dissociation impedes following evolution. Noble metal oxides possess promising capability for catalyzing and evolution; however, they are never utilized HER due to instability under reductive potential. Here it shown that compressive strain can stabilize RhO 2 clusters promote their catalytic activity. To this end, a strawberry‐like...
Electrocatalytic nitric oxide (NO) reduction represents a sustainable route from the point of view environmental protection and ammonia generation. However, conversion NO to under low concentrations is still big challenge. Herein, Ru nanosheets with coordination numbers (Ru-LCN) are prepared exhibit high performance for electrocatalytic (1% v/v) −0.2 V vs RHE (Faradaic efficiency, 65.96%; yield rate, 45.02 μmol·h–1·mgcat–1), obviously outperforming its counterpart number 37.25%; 25.57...
Electrocatalytic nitrate (NO3-) reduction to ammonia (NRA) has emerged as an alternative strategy for effluent treatment and production. Despite significant advancements that have been achieved in this field, the efficient conversion of low-concentration at low overpotential remains a formidable challenge. This challenge stems from sluggish reaction kinetics caused by limited distribution negatively charged NO3- vicinity working electrode competing side reactions. Here, pulsed potential...
Abstract Developing low‐cost and high‐activity pH‐universal hydrogen evolution reaction (HER) catalysts is very crucial to the industrialization of water electrolysis. However, high price, low yield, poor stability current HER make them difficult meet practical requirements. Herein, a plasma spraying technique employed prepare self‐supported Cu with tensile strain for first time. The upshifts d‐band Cu, improves dissociation H * adsorption, eventually intrinsic catalytic activity. As such,...
Electrocatalytic reduction of nitrate to ammonia (NRA) has emerged as an alternative strategy for sewage treatment and generation. Despite excellent performances having been achieved over cobalt-based electrocatalysts, the reaction mechanism well veritable active species across a wide potential range are still full controversy. Here, we adopt CoP, Co, Co3O4 model materials solve these issues. CoP evolves into core@shell structured CoP@Co before NRA. For Co catalysts, three-step relay is...
Heteroatom-doped carbon materials have been widely used in many electrocatalytic reduction reactions. Their structure-activity relationships are mainly explored based on the assumption that doped remain stable during electrocatalysis. However, structural evolution of heteroatom-doped is often ignored, and their active origins still unclear. Herein, taking N-doped graphite flake (N-GP) as research model, we present hydrogenation both N C atoms consequent reconstruction skeleton hydrogen...
Electrocatalytic nitrate reduction to ammonia is a promising approach in term of pollutant appreciation. Cu-based catalysts performs leading-edge advantage for due its favorable adsorption with *NO
The electrochemical NO reduction reaction (NORR) is a promising approach for both nitrogen cycle regulation and ammonia synthesis. Due to the relatively low concentration of source poor solubility in solution, mass transfer limitation serious but easily overlooked issue. In this work, porous carbon-supported ultrafine Cu clusters grown on nanowire arrays (defined as Cu@Cu/C NWAs) are prepared low-concentration NORR. A high Faradaic efficiency (93.0%) yield rate (1180.5 μg h–1 cm–2) realized...
Abstract Interfacial solar evaporation‐based seawater desalination is regarded as one of the most promising strategies to alleviate freshwater scarcity. However, evaporation rate real significantly constricted by ubiquitous salts present in seawater. In addition common issue salt accumulation on surface during evaporation, strong hydration between ions and water molecules leads a lower for compared pure water. Here facile general strategy developed reverse this occurrence, that is, making...
Carbon materials are promising electrocatalysts for renewable energy devices because of their abundant availability, tunability, and structural durability in harsh electrochemical environments. Future large-scale applications require the construction carbon with a clear doping configuration high dopant loading, but this is particularly challenging. In work, we reported molecular weaving strategy using molecules well-defined thiophene–sulfur (S) as precursors to synthesize thiophene–S-doped S...
Abstract Cost‐effective transition metal chalcogenides are highly promising electrocatalysts for both alkaline and acidic hydrogen evolution reactions (HER). However, unsatisfactory HER kinetics stability have severely hindered their applications in industrial water electrolysis. Herein, a nanoflowers‐shaped W‐doped cubic/orthorhombic phase‐mixed CoSe 2 catalyst ((c/o)‐CoSe ‐W) is reported. The W doping induces spontaneous phase from stable cubic (c‐CoSe ) to metastable orthorhombic , which...
Abstract Ultrasmall size and abundant defects are two crucial factors for improving the performance of catalysts. However, it is a big challenge to introduce into ultrafine catalysts because surface tension self‐purification effect nanoparticles. In present work, physical laser fragmentation with chemical oxidization reaction combined synthesize Co 3 O 4 nanoparticles (L‐CO) ultrasmall (≈2.1 nm) as well oxygen vacancies, thus providing an effective solution long‐standing contradiction...
Highly effective catalysts are of great importance for artificial nitrogen fixation. Inspired by the natural nitrogenase, we biomimetically designed an inorganic catalyst, Mo(IV)-doped FeS2, electroreduction dinitrogen to ammonia. The Mo(IV) ions favor adsorption and activation N2, while FeS2 substrate depresses competitive hydrogen evolution reaction, two factors jointly endow catalyst with a high Faraday efficiency 14.41% at −0.2 V versus RHE.
Electrocatalytic oxygen evolution in acidic media is crucial for promoting water splitting. Herein, we report an Ag1/IrOx single atom catalyst (SAC) with Ag atoms embedded IrO2 matrix obtained through the oxidation of IrAg alloy (SAA). The SAC delivers a low overpotential 224 mV at current density 10 mA cm–2 and long-term durability better than that commercial Ir (C-Ir). DFT calculation indicates six neighboring exhibit higher-valence Irx+ (x > 4) thus lower adsorption free energy...
Clarifying the catalytic mechanism of an FeOOH/Ni<sub>3</sub>S<sub>2</sub> heterogeneous catalyst for overall water splitting.
Mn doping in NiFe layered double hydroxide causes hybridization between Ni 3d and O 2p orbitals which facilitates the formation of active Ni(<sc>iv</sc>) sites improves OER performance.
Highly chemo- and regioselective semihydrogenation of alkynes is significant challenging for the synthesis functionalized alkenes. Here, a sequential self-template method used to synthesize amorphous palladium sulfide nanocapsules (PdSx ANCs), which enables electrocatalytic terminal in H2O with excellent tolerance easily reducible groups (e.g., C–I/Br/Cl, C═O) metal center deactivating skeletons quinolyl, carboxyl, nitrile). Mechanistic studies demonstrate that specific σ-alkynyl adsorption...
The electrocatalytic nitrogen oxidation reaction (NOR) to generate nitrate is gaining increasing attention as an alternative approach the conventional industrial manufacture. But, current progress in NOR limited by difficulties activation and conversion of strong N≡N bond (941 kJ mol-1 ). Herein, we designed utilize sulfate enhance performance over Rh electrocatalyst. After addition sulfate, inert nanoparticles exhibited superior with a yield 168.0 μmol gcat-1 h-1 . 15 N isotope-labeling...
The direct electrochemical nitric oxide reduction reaction (NORR) is an attractive technique for converting NO into NH3 with low power consumption under ambient conditions. Optimizing the electronic structure of active sites can greatly improve performance electrocatalysts. Herein, we prepare body-centered cubic RuGa intermetallic compounds (i.e., bcc IMCs) via a substrate-anchored thermal annealing method. electrocatalyst exhibits remarkable NH4+ yield rate 320.6 μmol h-1 mg-1Ru...
Abstract Constructing Cu 0 –Cu + double‐active sites is significant for C–C coupling to produce multicarbon products during the CO 2 electrocatalytic reduction process. However, Cu‐based precursors (including ) are easily reduced , especially at large current densities. Thus, developing a facile stabilization method form highly desirable but challenging. Herein, fullerene (C 60 used as an electronic buffer stabilize site. Then, composite of copper oxide and C precursor designed obtain...
Abstract Large‐scale application of alkaline water electrolysis for high‐rate hydrogen production is severely hindered by high electricity cost, mainly due to difficulties acquire cost‐effective catalytic electrodes with both extremely low overpotential and long‐term durability at ultrahigh current densities (≥1 A cm −2 ). Here it demonstrated that adopting a synthetic method laser direct writing in liquid nitrogen via commercial welding machine, remarkably efficient durable electrode large...
Abstract Electrochemical reduction of nitrate waste is promising for environmental remediation and ammonia preparation. This process includes multiple hydrogenation steps, thus the active hydrogen behavior on surface catalyst crucial. The crystal phase referred to atomic arrangements in crystals has a great effect hydrogen, but influence still unclear. Herein, enzyme‐mimicking MoS 2 different phases (1T 2H) are used as models. Faradaic efficiency reaches ≈90 % over 1T‐MoS , obviously...
Decarbonizing N2 conversion is particularly challenging, but essential for sustainable development of industry and agriculture. Herein, we achieve electrocatalytic activation/reduction on X/Fe-N-C (X=Pd, Ir Pt) dual-atom catalysts under ambient condition. We provide solid experimental evidence that local hydrogen radical (H*) generated the X site can participate in adsorbed Fe site. More importantly, reveal reactivity be well adjusted by activity H* site, i.e., interaction between X-H bond....