A5100644544- Ammonia Synthesis and Nitrogen Reduction
- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Advanced battery technologies research
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Caching and Content Delivery
- Covalent Organic Framework Applications
- CO2 Reduction Techniques and Catalysts
- Supercapacitor Materials and Fabrication
- Fuel Cells and Related Materials
- Advanced Battery Technologies Research
- Catalytic Processes in Materials Science
- Hydrogen Storage and Materials
- Nanomaterials for catalytic reactions
- Advanced Wireless Communication Techniques
- Geotechnical Engineering and Soil Stabilization
- Tree Root and Stability Studies
- PAPR reduction in OFDM
- Wireless Communication Networks Research
- Metal-Organic Frameworks: Synthesis and Applications
- Muon and positron interactions and applications
- Chemical Synthesis and Characterization
- High Entropy Alloys Studies
- Carbon dioxide utilization in catalysis
Nantong University
2022-2025
Xiangtan University
2024-2025
Central South University
2021-2024
South China Normal University
2024
Northeast Agricultural University
2024
Central South University of Forestry and Technology
2021-2024
Beijing University of Chemical Technology
2022-2024
Soochow University
2017-2023
Shanghai University of Medicine and Health Sciences
2022
Hebei North University
2022
Abstract Ambient electrochemical N 2 reduction is emerging as a highly promising alternative to the Haber–Bosch process but typically hampered by high reaction barrier and competing hydrogen evolution, leading an extremely low Faradaic efficiency. Here, we demonstrate that under ambient conditions, single-atom catalyst, iron on nitrogen-doped carbon, could positively shift ammonia synthesis onset potential of 0.193 V, enabling dramatically enhanced efficiency 56.55%. The only doublet...
Abstract Covalent organic frameworks with abundant active sites are potential metal-free catalysts for the nitrogen reduction reaction. However, utilization ratio of is restricted in an actual reaction process due to limited transport. Here, we demonstrate that facilitating N 2 accessibility boron-rich covalent through electrochemical excitation can achieve highly efficient activity. Simulations show boron bonded nitrogenous species under condition and resultant amorphous phase has much...
The electroreduction of nitrogen to ammonia offers a promising alternative the energy-intensive Haber-Bosch process. Unfortunately, reaction suffers from low activity and selectivity, owing competing hydrogen evolution poor accessibility electrocatalyst. Here, we report that deliberately triggering salting-out effect in highly concentrated electrolyte can simultaneously tackle above challenges achieve efficient synthesis. solute ions exhibit strong affinity for surrounding H2O molecules,...
Abstract The electrochemical nitrate reduction reaction (NO 3 RR) is a promising approach for removal and NH synthesis at ambient conditions. As complex eight‐electron/nine‐proton transfer process, its performance relies heavily on the adsorption ability of intermediates catalyst surface, which determined by geometric electronic configurations active sites. In this work, heteroatom ensemble effect deliberately triggered over RuFe bimetallic alloy to optimize intermediate NO RR. A record‐high...
Electrochemical conversion of nitrate, a widespread water pollutant, into high-value-added ammonia is renewable and delocalized route to restore the globally perturbed nitrogen cycle. However, premature desorption catalytic intermediates competitive reaction hydrogen evolution make current performance still far from suitable for practical applications. In this work, Zr-based metal–organic framework (MOF) in situ constructed at interface serve as smart channel highly selective...
Photocatalytic nitrogen reduction reaction (PNRR) is emerging as a sustainable ammonia synthesis approach to meet global carbon neutrality. Porous framework materials with well-designed structures have great opportunities in PNRR; however, they suffer from unsatisfactory activity the conventional gas-in-solvent system (GIS), owing hindrance of utilization and strong competing hydrogen evolution caused by overwhelming solvent. In this study, porous are combined novel "solvent-in-gas" system,...
Abstract Electrochemical reduction of CO 2 (CO RR) and nitrogen (NRR) constitute alternatives to fossil fuel‐based technologies for the production high‐value‐added chemicals. Yet their practical application is still hampered by low energy Faradaic efficiencies although numerous efforts have been paid overcome fatal shortcomings. To date, most studies focused on designing developing advanced electrocatalysts, while understanding electrolyte, which would significantly influence reaction...
Electrochemical reduction of nitrate (NO3RR), a widespread water pollutant, to high-valued ammonia is encouraging for sustainable artificial nutrient recycling and environmental-friendly pollution management. However, the limited available catalytic active sites competitive hydrogen evolution make performance still unsatisfactory. In this work, interfacial defect engineering via single atom doping was conducted achieve highly efficient electrocatalytic NO3RR. Upon introduction isolated Fe...
Abstract As the core of low‐temperature direct ammonia fuel cell (DAFC) technology, electrocatalytic oxidation reaction (AOR) has proven to be most active on platinum‐based catalysts. However, AOR is extremely surface sensitive that only Pt (200) facet exhibits high activity, whereas other facets usually do not make contributions. Herein, inert (220) PtMo nano‐alloy successfully awakened as one more in addition via directional single‐atom Ni‐doping. The introduction Ni triggers a targeted...
Electrochemical nitrogen reduction reaction (NRR) is a burgeoning field for green and sustainable ammonia production, in which numerous potential catalysts emerge endlessly. However, satisfactory performances are still not realized under practical applications due to the limited solubility sluggish diffusion of at interface. Herein, molecular imprinting technology adopted construct an adlayer with abundant imprints on electrocatalyst, capable selectively recognizing proactively aggregating...
Abstract Photoelectrochemical (PEC) technology offers new opportunities for pushing the renewable energy‐driven ammonia synthesis toward a practical level, while still facing unsatisfactory efficiency due to obstacle of dissociating inert nitrogen triple‐bonds. Herein, novel donor‐site‐acceptor system is constructed in covalent organic frameworks tackle this challenge highly efficient PEC synthesis. Highly active boron site elaborately embedded between donor and acceptor units, which can be...
Driven by the intensified demand for energy storage systems with high-power density and safety, all-solid-state zinc-air batteries have drawn extensive attention. However, electrocatalyst active sites underlying mechanisms occurring in remain confusing due to lack of situ analytical techniques. In this work, observations, including X-ray diffraction Raman spectroscopy, a heteroatom-doped carbon air cathode are reported, which chemisorption oxygen molecules oxygen-containing intermediates on...
A boron dopant is experimentally and theoretically confirmed to effectively modulate the d-band center of a single-atom catalyst, enabling favorable adsorption kinetics oxygen intermediates thus greatly improving ORR performance.
A lithium-ion polymer battery using the lithiated perfluorinated sulfonic ion-exchange membranes swollen with organic non-aqueous solvent as both separator and electrolyte is demonstrated, shows very good capacity retention compared conventional liquid electrolyte.
Abstract Zinc‐air battery is of great interest but its wide‐ranging application impeded by the sluggish cathodic reactions, especially oxygen reduction reaction. Despite blooming development in past decades, achieving further breakthroughs activity improvement still appears challenging. Herein, critical role bimetal sites boosting identified with combination theoretical calculations and electrochemical experiments. Density functional theory suggest elongation OO bond over dual‐atom system,...
Activation of high-energy triple-bonds N2 is the most significant bottleneck ammonia synthesis under ambient conditions. Here, by importing cobalt single clusters as strong electron-donating promoter into catalyst, rate-determining step altered to subsequent proton addition so that barrier dissociation can be successfully overcome. As revealed density functional theory calculations, becomes exothermic over cluster upon electron backdonation from metal antibonding orbitals. The energy...
Abstract The extremely low nitrogen (N 2 ) solubility in aqueous solution greatly limits the gas reactant supply to catalysts resulting a bottleneck establishing efficient electrocatalytic N reduction reaction (NRR). Here, aiming at fairly few dissolving electrolyte, an ‐microextractor (NME) that can extract from water, then feed it on electrodes, is reported. NME consists of polymer framework and extractant possess high for , which serves as ultra‐thin interfacial system wrapping around...
Abstract Nowadays, gas‐involved electrochemical reactions, such as carbon dioxide reduction reaction (CO 2 RR), nitrogen (NRR), and hydrogen evolution (HER), have gradually become viable solutions to the global environmental pollution energy crisis. However, their further development is inseparable from in‐depth understanding of mechanisms, which are incredibly complicated cannot be satisfied by experiments alone. In this context, theoretical calculations simulations great significance in...