A5101630709- Advancements in Battery Materials
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Advanced Battery Materials and Technologies
- Nanomaterials for catalytic reactions
- CO2 Reduction Techniques and Catalysts
- Copper-based nanomaterials and applications
- Metal Forming Simulation Techniques
- Ammonia Synthesis and Nitrogen Reduction
- Carbon and Quantum Dots Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Condensed Matter Physics
- Nanocluster Synthesis and Applications
- Ionic liquids properties and applications
- Organic and Molecular Conductors Research
- Fuel Cells and Related Materials
- Magnetism in coordination complexes
- Conducting polymers and applications
- Metallurgy and Material Forming
- Carbon dioxide utilization in catalysis
- Microstructure and mechanical properties
- Graphene research and applications
Chinese Academy of Sciences
2015-2024
High Magnetic Field Laboratory
2015-2024
Hefei Institutes of Physical Science
2015-2024
Xi'an Technological University
2018-2024
Shanghai Jiao Tong University
2024
Ruijin Hospital
2024
Shaanxi Coal Chemical Industry Technology Research Institute
2024
Huaneng Clean Energy Research Institute
2023
University of Central Florida
2018-2022
Chongqing Technology and Business University
2022
Electrochemical reduction of N2 to NH3 provides an alternative the Haber-Bosch process for sustainable, distributed production when powered by renewable electricity. However, development such has been impeded lack efficient electrocatalysts reduction. Here we report electroreduction on palladium nanoparticles in phosphate buffer solution under ambient conditions, which exhibits high activity and selectivity with yield rate ~4.5 μg mg-1Pd h-1 a Faradaic efficiency 8.2% at 0.1 V vs. reversible...
Electroreduction of carbon dioxide (CO
Co3O4 nanoparticles have been prepared by a facile strategy, which involves the thermal decomposition of cobalt-based Prussian blue analogues at different temperatures. The 450, 550, 650, 750, and 850 °C exhibited high discharge capacity 800, 970, 828, 854, 651 mAhg–1, respectively, after 30 cycles current density 50 mAg–1. nanocages produced 550 show highest lithium storage capacity. It is found that display nanosize grains, hollow structure, porous shell, large specific surface area. At...
The high theoretical capacity and low discharge potential of silicon have attracted much attention on Si-based anodes. Herein, hollow porous SiO2 nanocubes been prepared via a two-step hard-template process evaluated as electrode materials for lithium-ion batteries. exhibited reversible 919 mAhg−1 over 30 cycles. reasonable property could be attributed to the unique nanostructure with large volume interior numerous crevices in shell, which accommodate change alleviate structural strain...
Buildup of a porous layer nanoparticles on the heated surface occurs upon boiling nanofluids containing alumina, zirconia, or silica nanoparticles. This significantly improves wettability, as shown by reduction static contact angle nanofluid-boiled surfaces compared with pure-water-boiled surfaces. The is attributed to changes in energy and morphology brought about presence nanoparticle layer. high wettability can plausibly explain critical heat flux enhancement nanofluids.
Novel CuO/Cu2O hollow polyhedrons with porous shells were fabricated by thermal decomposition of coordination compound [Cu3(btc)2]n (btc = benzene-1,3,5-tricarboxylate) at 350 °C. When tested as anode materials for lithium-ion batteries, these exhibited a reversible lithium storage capacity high 740 mA h g−1 100 after 250 cycles even if the charge–discharge process is stopped one week during test time.
Herein, we report the feasibility to enhance capacity and stability of CoMn2O4 anode materials by fabricating hierarchical mesoporous structure. The open space between neighboring nanosheets allows for easy diffusion electrolyte. microspheres assembled with can ensure that every nanosheet participates in electrochemical reaction, because is contacted electrolyte solution. structure well interconnected pores on surface will CoMn2O4/electrolyte contact area, shorten Li+ ion length accommodate...
Lithium-ion batteries (LIBs), owing to their high energy density, light weight, and long cycle life, have shown considerable promise for storage devices. The successful utilization of LIBs depends strongly on the preparation nanomaterials with outstanding lithium properties. Recent progress has demonstrated that hollow/porous nanostructured oxides are very attractive candidates anodes due capacities. Here, we aim provide an overview nanoscale metal-organic frameworks (NMOFs)-templated...
Electrochemical reduction of N2 to NH3 under ambient conditions can provide an alternative the Haber–Bosch process for distributed production that be powered by renewable electricity. The major challenge realizing such a is develop efficient electrocatalysts reaction (N2RR), as typical catalysts show low activity and selectivity due barrier activation competing hydrogen evolution (HER). Here we report Fe/Fe3O4 catalyst electrochemical synthesis, which was prepared oxidizing Fe foil at 300 °C...
Abstract Herein we report a novel facile strategy for the fabrication of Co 3 O 4 porous nanocages based on Kirkendall effect, which involves thermal decomposition Prussian blue analogue (PBA) [Co(CN) 6 ] 2 truncated nanocubes at 400 °C. Owing to volume loss and release internally generated CO N x y in process interdiffusion, with shells containing nanoparticles were finally obtained. When evaluated as electrode materials lithium‐ion batteries, as‐prepared displayed superior battery...
Electrochemical reduction of N2 to NH3 under ambient conditions can enable an alternative approach for sustainable, distributed production when powered by renewable electricity. However, the development such a process has been hindered lack efficient electrocatalysts reaction (NRR) because barrier activation and competing hydrogen evolution (HER). Here, we highlight some mechanistic insights into electrode–electrolyte interface electrosynthesis, where NRR HER compete available protons,...
Designing an efficient dual-metal catalyst Fe, Mn–N/C for the ORR, inspired by bio-enzymes.
The phase-controlled synthesis of metallic and ambient-stable 2D MX2 (M is Mo or W; X S) with 1T octahedral coordination will endow these materials superior performance compared their semiconducting 2H counterparts. We report a clean facile route to prepare 1T-MoS2 1T-WS2 through hydrothermal processing under high magnetic fields. reveal that the as-synthesized are for more than 1 year. Electrochemical measurements show performs much better 2H-MoS2 as anode sodium ion batteries. These...
Traditionally, magnetic field has long been regarded as an important means for studying the properties of materials. With development synthesis and assembly methods, field, similar to conventional reaction conditions such temperature, pressure, surfactant, developed a new parameter synthesizing assembling special structures. To date, fields have widely employed materials one-dimensional (1D), two-dimensional (2D) or three-dimensional (3D) aggregates. In this review, we aim provide summary on...
Heterogeneous catalysts facilitate various chemical reactions through the changing of its surface charge density.
Abstract Electrochemical CO 2 reduction reaction offers a promising pathway to transform renewable electricity into value‐added fuels and feedstocks in the form of chemical energy. However, *CO intermediates tend obtain protons or electrons generate C 1 products. The Cu + , an active catalytic site for 2+ products, is easily reduced 0 at cathodic potentials. Herein, hollow cuprous oxide protected by thin N‐doped carbon shell (H–Cu O@C/N) as efficient nanoreactor stabilize species enhance...
A composite of manganese hexacyanoferrate (MnHCF) coated by an amorphous dioxide layer was synthesized a facile co-precipitation method and further step called "deep electro-oxidation". The structure components the resulting MnHCF/MnO2 composites were characterized scanning electron microscopy, transmission X-ray diffraction photoelectron spectroscopy. Electrochemical testing showed capacitance 225.6 F g−1 at sweep rate 5 mV s−1 within voltage range 1.3 V high energy density 74.5 W h kg−1...
A facile strategy to fabricate FeCo nanocrystals with nitrogen-doped graphene shells has been designed, which involves one-step thermal decomposition of Prussian blue analogue (PBA) Fe3[Co(CN)6]2 spheres. The as-prepared product can be used as a non-precious-metal catalyst highly efficient catalytic activity and magnetically separable capability in the reduction 4-nitrophenol.
A new facile strategy has been designed to fabricate spinel Mn(x)Co(3-x)O(4) porous nanocubes, which involves a morphology-conserved and pyrolysis-induced transformation of Prussian Blue Analogue Mn(3)[Co(CN)(6)](2)⋅nH(2)O perfect nanocubes. Owing the release CO(2) N(x)O(y) in process interdiffusion, this can overcome large extent disadvantage traditional ceramic route for synthesis spinels, with foamlike nanostructure is effectively obtained. Importantly, when evaluated as an electrode...
Abstract The most active catalysts so far successful in hydrogenation reduction of CO 2 are mainly heterogeneous Cu‐based catalysts. complex coordination environments and multiple sites result low selectivity target product, while molecular with well‐defined tailorable structures allow mechanism‐based performance optimization. Herein, we firstly report a single ethylenediaminetetraacetic acid (EDTA) molecular‐level immobilized on the surface carbon nanotube as catalyst for transferring to CH...