A5080236384- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- CO2 Reduction Techniques and Catalysts
- Advanced Photocatalysis Techniques
- Fuel Cells and Related Materials
- Ammonia Synthesis and Nitrogen Reduction
- Catalytic Processes in Materials Science
- Advanced Memory and Neural Computing
- Nanomaterials for catalytic reactions
- Ferroelectric and Negative Capacitance Devices
- Ionic liquids properties and applications
- Carbon dioxide utilization in catalysis
- Neural Networks and Reservoir Computing
- Advanced Neural Network Applications
- Electrochemical Analysis and Applications
- Advanced Battery Materials and Technologies
- Optical Network Technologies
- Machine Learning and ELM
- Advancements in Battery Materials
- Catalysts for Methane Reforming
- Catalysis and Hydrodesulfurization Studies
- Caching and Content Delivery
- Indoor and Outdoor Localization Technologies
- Hydrogen Storage and Materials
- Wastewater Treatment and Nitrogen Removal
Qufu Normal University
2022-2025
Guangzhou University
2023-2025
University at Buffalo, State University of New York
2020-2024
Zhejiang University
2005-2024
Duke University
2020-2024
Zhengzhou University
2022-2024
Henan University of Science and Technology
2024
Qinghai University
2024
Chongqing University of Technology
2024
University of Virginia
2023-2024
Single-metal site catalysts have exhibited highly efficient electrocatalytic properties due to their unique coordination environments and adjustable local structures for reactant adsorption electron transfer. They been widely studied many electrochemical reactions, including oxygen reduction reaction (ORR) evolution (OER). However, it remains a significant challenge realize high-efficiency bifunctional catalysis (ORR/OER) with single-metal-type active sites. Herein, we report atomically...
Increasing catalytic activity and durability of atomically dispersed metal-nitrogen-carbon (M-N-C) catalysts for the oxygen reduction reaction (ORR) cathode in proton-exchange-membrane fuel cells remains a grand challenge. Here, high-power durable Co-N-C nanofiber catalyst synthesized through electrospinning cobalt-doped zeolitic imidazolate frameworks into selected polyacrylonitrile poly(vinylpyrrolidone) polymers is reported. The distinct porous fibrous morphology hierarchical structures...
Abstract Ammonia (NH 3 ) electrosynthesis gains significant attention as NH is essentially important for fertilizer production and fuel utilization. However, electrochemical nitrogen reduction reaction (NRR) remains a great challenge because of low activity poor selectivity. Herein, new class atomically dispersed Ni site electrocatalyst reported, which exhibits the optimal yield 115 µg cm −2 h −1 at –0.8 V versus reversible hydrogen electrode (RHE) under neutral conditions. High faradic...
Atomically dispersed and nitrogen coordinated single metal sites (M-N-C, M=Fe, Co, Ni, Mn) are the popular platinum group-metal (PGM)-free catalysts for many electrochemical reactions. Traditional wet-chemistry catalyst synthesis often requires complex procedures with unsatisfied reproducibility scalability. Here, we report a facile chemical vapor deposition (CVD) strategy to synthesize promising M-N-C catalysts. The of gaseous 2-methylimidazole onto M-doped ZnO substrates, followed by an in...
Carbon supported and nitrogen coordinated single Mn site (Mn–N–C) catalysts are the most desirable platinum group metal (PGM)-free cathode for proton-exchange membrane fuel cells (PEMFCs) due to their insignificant Fenton reactions (vs. Fe), earth abundances Co), encouraging activity stability. However, current Mn–N–C suffer from high overpotential low intrinsic less dense MnN4 sites. Herein, we present a sulfur-doped catalyst (Mn–N–C–S) synthesized through an effective adsorption-pyrolysis...
Single metal site catalysts are the most promising candidates to replace platinum-group-metal (PGM) for oxygen reduction reaction (ORR), yet insufficient performance and scalable preparation approaches remain great challenges. Here, we report a nitrogen (N)/sulfur (S) codoped single Fe catalyst (Fe–N/S–C) through chemical vapor deposition (CVD) strategy. Using cyclopentadiene-shielded atom ferrocene (Fc) as precursor, atomically dispersed sites were successfully embedded into N, S 2D carbon...
Carbon-supported nitrogen-coordinated single-metal site catalysts (i.e., M-N-C, M: Fe, Co, or Ni) are active for the electrochemical CO2 reduction reaction (CO2 RR) to CO. Further improving their intrinsic activity and selectivity by tuning N-M bond structures coordination is limited. Herein, we expand environments of M-N-C designing dual-metal sites. The Ni-Fe catalyst exhibited most efficient CO2RR promising stability compared other combinations. Advanced structural characterization...
Developing highly active and stable nitrogen reduction reaction (NRR) catalysts for NH3 electrosynthesis remains challenging. Herein, an unusual NRR electrocatalyst is reported with a single Zn(I) site supported on hollow porous N-doped carbon nanofibers (Zn1 N-C). The Zn1 N-C exhibit outstanding activity high yield rate of ≈16.1 µg h-1 mgcat-1 at -0.3 V Faradaic efficiency (FE) 11.8% in alkaline media, surpassing other previously carbon-based electrocatalysts transition metals atomically...
As the limits of transistor technology are approached, feature size in integrated circuit transistors has been reduced very near to minimum physically-realizable channel length, and it become increasingly difficult meet expectations outlined by Moore's law. one most promising devices replace transistors, memristors have many excellent properties that can be leveraged develop new types neural non-von Neumann computing systems, which expected revolutionize information-processing technology....
Ammonia, as a promising hydrogen carrier, can be decomposed on Ru-free catalyst at economically feasible temperatures for on-site carbon-free generation.
As a raw material for producing chemical fertilizers, ammonia plays an essential role in human production and life. Due to the severe energy consumption pollution caused by industrial Haber–Bosch process of NH 3 synthesis, developing synthesis reaction under ambient conditions is vital. Electrochemical nitrogen reduction (NRR) has recently emerged as potential method. However, its limited yield selectivity are unsatisfactory. NO − , oxidized form nitrogen, universally exists drinking water...
Abstract Electrochemical CO 2 reduction offers a compelling route to mitigate atmospheric concentration and store intermittent renewable energy in chemical bonds. Beyond C 1 , 2+ feedstocks are more desirable due their higher density significant market need. However, the ‐to‐C suffers from barriers of CC coupling complex reaction pathways. Due remarkable tunability over morphology/pore architecture along with great feasibility functionalization modify electronic geometric structures, carbon...
The atomically dispersed iron site and nitrogen co-doped carbon catalysts (Fe–N–C) have demonstrated promising performance in replacing Pt toward the oxygen reduction reaction (ORR) acids for proton exchange membrane fuel cells. However, insufficient durability of Fe–N–C prohibitively hinders their practical applications. Herein, we report that co-doping Zr Fe dual metal sites into a ZIF-8-derived mesoporous exhibited significantly improved ORR. Especially, electrode assembly from ORR...
Two-dimensional metal-organic frameworks (MOFs) have served as favorable prototypes for electrocatalytic oxygen evolution reaction (OER). Despite promising catalytic activity, their OER kinetics are still limited by the sluggish four-electron transfer process. Herein, we develop a ferrocene carboxylic acid (FcCA) partially substituted cobalt-terephthalic (CoBDC) catalyst with bifunctional microreactor composed of two species Co active sites and ligand FcCA (CoBDC FcCA). Benefiting from...
Abstract Electrocatalysts play a vital role in electroreduction of N 2 to NH 3 (NRR); however, large‐scale industrial application electrochemical NRR is still limited by low selectivity and poor activity, owing the sluggish reaction kinetics. Herein, high‐performance catalyst consisting atomically dispersed iron single site embedded porous nitrogen‐doped carbon nanofibers with abundant defects (D‐FeN/C) reported. The D‐FeN/C achieves remarkably high yield rate ≈24.8 µg h −1 mg cat Faradaic...
Cu-based catalysts have been widely applied in electroreduction of carbon dioxide (CO2 ER) to produce multicarbon (C2+ ) feedstocks (e.g., C2 H4 ). However, the high energy barriers for CO2 activation on Cu surface is a challenge catalytic efficiency and product selectivity. Herein, we developed an situ *CO generation spillover strategy by engineering single Ni atoms pyridinic N-enriched support with sodalite (SOD) topology (Ni-SOD/NC) that acted as donor feed adjacent nanoparticles (NPs)...
Abstract Designing hydrogen evolution reaction (HER) electrocatalysts for facilitating its sluggish adsorption kinetics is crucial in generating green via sustainable water electrolysis. Herein, a high‐performance ultra‐low Ruthenium (Ru) catalyst developed consisting of atomically‐layered Ru nanoclusters with adjacent single sites, which executs bridging‐Ru‐H activation strategy to kinetically accelerate the HER elementary steps. Owing optimal electronic structure and unique configuration,...
Cu-based catalysts hold promise for electrifying CO2 to produce methane, an extensively used fuel. However, the activity and selectivity remain insufficient due lack of catalyst design principles steer complex reduction pathways. Herein, we develop a concept carbon-supported Cu by regulating active sites' atomic-scale structures engineering carbon support's mesoscale architecture. This aims provide favorable local reaction microenvironment selective pathway methane. In situ X-ray absorption...
Electrochemical oxygen evolution reaction (OER) kinetics are heavily correlated with hybridization of the transition metal d-orbital and intermediate p-orbital, which dictates barriers adsorption/desorption on active sites catalysts. Herein, a strategy is developed involving strain engineering coordination regulation to enhance Ni 3d O 2p orbitals, as-synthesized Ni-2,6-naphthalenedicarboxylic acid metal-organic framework (DD-Ni-NDA) nanosheets deliver low OER overpotential 260 mV reach 10...