A5065231573- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Catalytic Processes in Materials Science
- CO2 Reduction Techniques and Catalysts
- Electrochemical Analysis and Applications
- Advancements in Battery Materials
- Advanced Photocatalysis Techniques
- Fuel Cells and Related Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Carbon dioxide utilization in catalysis
- Catalysis and Oxidation Reactions
- Gas Sensing Nanomaterials and Sensors
- Perovskite Materials and Applications
- Extraction and Separation Processes
- Ionic liquids properties and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Conducting polymers and applications
- Advanced Thermoelectric Materials and Devices
- Advanced biosensing and bioanalysis techniques
- Linguistics, Language Diversity, and Identity
- Advanced Nanomaterials in Catalysis
- Electron and X-Ray Spectroscopy Techniques
- Lubricants and Their Additives
- Advancements in Solid Oxide Fuel Cells
Chinese Academy of Sciences
2018-2025
Shanghai Institute of Applied Physics
2018-2025
Shanghai Advanced Research Institute
2019-2025
Shanghai Synchrotron Radiation Facility
2025
Jiuquan Iron & Steel (China)
2023
Xi'an International Studies University
2021-2022
Chang'an University
2021
National Synchrotron Radiation Laboratory
2017
University of Science and Technology of China
2017
While inheriting the exceptional merits of single atom catalysts, diatomic site catalysts (DASCs) utilize two adjacent atomic metal species for their complementary functionalities and synergistic actions. Herein, a DASC consisting nickel-iron hetero-diatomic pairs anchored on nitrogen-doped graphene is synthesized. It exhibits extraordinary electrocatalytic activities stability both CO
Developing highly efficient oxygen evolution reaction (OER) catalysts and understanding their activity are pivotal for electrochemical conversion technologies. Here, we report NiFe Prussian blue analogue (PBA) as a promising electrocatalyst OER in alkaline conditions. This material has an impressively low overpotential of 258 mV that reaches current density 10 mA cm–2. Post-mortem characterization showed the as-prepared catalyst is entirely transformed into amorphous nickel hydroxide after...
Unravelling the intrinsic mechanism of electrocatalytic oxygen evolution reaction (OER) by use heterogeneous catalysts is highly desirable to develop related energy conversion technologies. Albeit dynamic self-reconstruction during OER extensively observed, it still challenging operando probe reconstruction and precisely identify true catalytically active components. Here, a new class precatalyst, cobalt oxychloride (Co2 (OH)3 Cl) with unique features that allow gradual phase due etching...
Copper-based materials can reliably convert carbon dioxide into multi-carbon products but they suffer from poor activity and product selectivity. The atomic structure-activity relationship of electrocatalysts for the selectivity is controversial due to lacking systemic multiple dimensions operando condition study. Herein, we synthesized high-performance CO2RR catalyst comprising CuO clusters supported on N-doped nanosheets, which exhibited high C2+ Faradaic efficiency 73% including decent...
<italic>Operando</italic> XAS combined with DFT calculations allows us to draw a phase diagram of the surface chemical state as function applied potential, showing hydroxyl filling process and potential-dependent deprotonation process.
<italic>Operando</italic> X-ray absorption spectroscopy (XAS) technique unravels that the CoFe nanoparticles in a new type of lanthana-anchored catalyst are nearly transformed into unique (Co/Fe)O(OH) under electrochemical condition, as real active species for oxygen evolution reaction.
Precisely tailoring the electronic structures of electrocatalysts to achieve an optimum hydroxide binding energy (OHBE) is vital alkaline hydrogen oxidation reaction (HOR). As a promising alternative Pt-group metals, considerable efforts have been devoted exploring highly efficient Ni-based catalysts for HOR. However, their performances still lack practical competitiveness. Herein, based on insights from molecular orbital theory and Hammer-Nørskov d-band model, we propose ingenious surface...
Designing and synthesizing highly efficient stable electrocatalysts for hydrogen evolution reaction (HER) is important realizing the economy. Tuning electronic structure of essential to achieve optimal HER activity, interfacial engineering an effective strategy induce electron transfer in a heterostructure interface optimize kinetics. In this study, ultrafine RhP2 /Rh nanoparticles are synthesized with well-defined semiconductor-metal heterointerface embedded N,P co-doped graphene (RhP2...
Large-scale deployment of proton exchange membrane (PEM) water electrolyzers has to overcome a cost barrier resulting from the exclusive adoption platinum group metal (PGM) catalysts. Ideally, carbon-supported used at cathode should be replaced with PGM-free catalysts, but they often undergo insufficient activity and stability subjecting corrosive acidic conditions. Inspired by marcasite existed under environments in nature, we report sulfur doping-driven structural transformation...
In this work, via engineering the conformation of cobalt active center in phthalocyanine molecular catalyst, catalytic efficiency electrochemical carbon monoxide reduction to methanol can be dramatically tuned. Based on a collection experimental investigations and density functional theory calculations, it reveals that electron rearrangement Co 3d orbitals from low-spin state (S = 1/2) high-spin 3/2), induced by change, is responsible for greatly enhanced CO reaction performance. Operando...
Phytoremediation is a potentially cost-effective and environmentally friendly remediation method for environmental pollution. However, the safe treatment resource utilization of harvested biomass has become limitation in practical applications. To address this, novel manganese-carbon-based single-atom catalyst (SAC) been developed based on pyrolysis manganese hyperaccumulator, Phytolacca americana. In this method, atoms are dispersed atomically carbon matrix coordinate with N to form Mn–N4...
Layered Ni-rich cathodes, operating at high voltage with superior cyclic performance, are required to develop future high-energy Li-ion batteries. However, the worst lattice oxygen escape high-voltage region easily causes structural instability, rapid capacity fading and safety issues upon cycling. Here, we report a dual-track strategy fully restrain of from cathodes within 2.7-4.5 V by one-step Ta doping CeO2 coating according their different diffusion energy barriers. The doped can...
Finding highly efficient hydrogen evolution reaction (HER) catalysts is pertinent to the ultimate goal of transformation into a net-zero carbon emission society. The design principles for such HER lie in well-known structure-property relationship, which guides synthesis procedure that creates catalyst with target properties as catalytic activity. Here we report general strategy synthesize 10 kinds single-atom-doped CoSe2-DETA (DETA = diethylenetriamine) nanobelts. By systematically analyzing...
In the electrochemical CO2 reduction reaction (CO2RR), activation is always first step, followed by subsequent hydrogenation. The catalytic performance of CO2RR intrinsically restricted competition between molecular and product release. Here, we design a heteronuclear Fe1-Mo1 dual-metal pair on ordered porous carbon that features high for driving to CO. Combining real-time near-ambient pressure X-ray photoelectron spectroscopy, operando 57Fe Mössbauer in situ attenuated total reflectance...
Electrosynthesis of hydrogen peroxide (H2 O2 ) in the acidic environment could largely prevent its decomposition to water, but efficient catalysts that constitute entirely earth-abundant elements are lacking. Here we report experimental demonstration narrowing interlayer gap metallic cobalt diselenide (CoSe2 ), which creates high-performance catalyst selectively drive two-electron oxygen reduction toward H2 an electrolyte. The enhancement coupling between CoSe2 atomic layers offers a...
A significant buffer effect from manganese ions is discovered to tune the atomic structure and valence state of an electrode material, resulting in a high-performance zinc battery.
Abstract Unveiling the structural evolution and working mechanism of catalysts under realistic operating conditions is crucial for design efficient electrocatalysts CO2 electroreduction, yet remains highly challenging. Here, by virtue operando measurements at multiscale levels, it identified electroreduction that an as-prepared CeO2/BiOCl precatalyst gradually evolves into CeOx/Bi interface structure with enriched Ce3+ species, which serves as real catalytically active phase. The derived...
Urinary tract infections (UTIs), which can lead to pyelonephritis, urosepsis, and even death, are among the most prevalent infectious diseases worldwide, with a notable increase in treatment costs due emergence of drug-resistant pathogens. Current diagnostic strategies for UTIs, such as urine culture flow cytometry, require time-consuming protocols expensive equipment. We present here machine learning-assisted colorimetric sensor array based on recognition ligand-functionalized Fe...
Developing an efficient photocatalytic system for hydrogen peroxide (H