97 Result(s)
within
Metallic Materials
Yu-**n Gao
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Visible-light-driven photocatalysis degradation of antibiotic pollutants by La-doped CeO2 nanorods: synergy of La do** and oxygen vacancy
Elemental do** is an effective strategy to enhance photocatalytic activity and extend the light absorption range of single-component photocatalysts. In this work, a series of La-doped CeO2 nanorods (La-CeO2-x) ...
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Highly reversible Zn anode enabled by anticatalytic carbon layer with suppressed hydrogen evolution
Aqueous zinc-ion batteries (AZIBs) have emerged as a promising high-efficiency energy storage system due to the high energy density, low-cost and environmental friendliness. However, the practical application ...
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Enhanced activation of peroxymonosulfate on layered molybdenum disulfide loaded with Co–La bimetallic oxide for efficient degradation of chloramphenicol
The use of transition metal-activated peroxymonosulfate (PMS) as an advanced oxidation technology has gained recognition. This study developed a catalyst using cobalt–lanthanum bimetallic oxide supported on la...
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Engineering CuMn Prussian blue analog-shelled nanobox for efficient electrochemical reduction of nitrate to ammonia
Electrocatalytic nitrate reduction reaction (ENRR) for ammonia synthesis is a promising strategy to relieve nitration contamination, as well as an alternative to the Haber–Bosch process. Prussian blue analogs ...
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Ethanol-assisted synthesis of a Ni single-atom catalyst with poriferous 3D framework for efficient cascade CO2 electroreduction
电催化二氧化碳还原反应生产多碳产品对实现碳中和经济具有重要意义。然而，多碳产品的选择性面临诸多挑战，例如多步加氢的复杂性、缓慢的动力学过程，以及碳酸氢盐沉淀问题。这些因素阻碍了该反应的广泛应用。在此，我们成功开发了串联电解器，以分离和优化多碳产物过程中涉及的复杂基元反应。这种方法使我们能够提高每一步的法拉第效率，从而改善系统的整体性能。我们采用乙醇辅助的离子交换方法合成了一种镍单原子催化剂，该催化剂嵌入多孔3D框架...
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Metallic Sb-stabilized porous silicon with stable SEI and high electron/ion conductivity boosting lithium-ion storage performance
Silicon (Si) has mild discharge potential and high theoretical capacity, making it a highly desirable material for lithium-ion batteries (LIBs). Nevertheless, the excessive volume expansion, poor ion/electron ...
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A backfill material without cementitious material: Carbonation curing magnesium slag based full solid waste backfill material
In view of the two major problems of the rapid growth of global CO2 emissions and the high cost of mine backfill materials (cement). In this study, a new method of mixing coal gangue (CG), magnesium slag (MS) and...
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Unraveling magnetic properties and martensitic transformation in Mn-rich Ni–Mn–Sn alloys: first-principles calculations and experiments
We have investigated the phase stability, magnetic properties, and martensitic transformation thermodynamics/kinetics of the Ni24-xMn18+x+ySn6-y (x, y = 0, 1, 2) system by combining the first-principles calculati...
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Resourceful preparation of Sb2O3 in hazardous As-Sb dust from typical lead smelter
Hazardous arsenic antimony dust (HAAD), a perilous by-product with significant antimony and arsenic concentrations generated in lead smelters, poses a substantial environmental threat. The imperative of resour...
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Aerodynamic effects of trains circulating through a bifurcated tunnel
In practice, bifurcated railway tunnels are occasionally employed in the construction of long tunnels due to specific geological reasons. However, the aerodynamic behaviors of trains moving through such comple...
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Lignin-reinforced PVDF electrolyte for dendrite-free quasi-solid-state Li metal battery
Quasi-solid-state lithium metal batteries (QSSLMBs) assembled with polyvinylidene fluoride (PVDF) are a promising class of next-generation rechargeable batteries due to their safety, high energy density, and s...
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Instability mechanism and energy evolution of surrounding rock at intersections of deep multi-form application
As mining progresses into deep strata, severe damage occurs at various long-life roadway intersections. To guide targeted repair and reinforcement operations, it is necessary to investigate the failure mechani...
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Enhanced red luminescence of Ca3Si2−xMxO7:Eu3+ (M = Al, P) phosphors via partial substitution of Si4+ for applications in white light-emitting diodes
A red-emitting phosphor Ca2.91Si2O7:0.09Eu3+ with partial Al3+/P5+ substitution on Si4+ was synthesized via a simple solid-state method, and the effects of the introduction of the M3+/5+ (M = Al, P) ions on the c...
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Introduction of rare-earth element Sc in alloy design to modify wear features of dual-phase high-entropy alloy
Tailoring the alloy composition, which induces the hard secondary phase to increase hardness and strength to improve the wear features, is a feasible approach for develo** wear-resistant metal materials. Her...
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A Hf-doped dual-phase high-entropy alloy: phase evolution and wear features
Initially defined high entropy alloys (HEAs) usually exhibit a single-phase solid-solution structure. However, two and/or more types of phases in HEAs possibly induce the desired microstructure features, which...
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Unveiling the Contribution of Lactic Acid to the Passivation Behavior of Ti–6Al–4V Fabricated by Laser Powder Bed Fusion in Hank’s Solution
In actual physiological environments, bacteria can activate the immune system and release lactic acid. However, the detailed contribution of lactic acid to the passivation behavior of titanium (Ti) alloys is s...
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Emerging WS2/WSe2@graphene nanocomposites: synthesis and electrochemical energy storage applications
In recent years, tungsten disulfide (WS2) and tungsten selenide (WSe2) have emerged as favorable electrode materials because of their high theoretical capacity, large interlayer spacing, and high chemical activit...
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Modulating p-d orbital hybridization by CuO/Cu nanoparticles enables carbon nanofibers high cycling stability as anode for sodium storage
Carbon nanofibers (CNFs) have been extensively studied as anode materials for sodium-ion batteries due to their high conductivity, large aspect ratio and good electrochemical stability. The low specific capaci...
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Drop strength measurement of green pellet based on drop-rebound mechanism
The construction of blast furnace charge structure based on pellet and the development of short process from non-blast furnace to electric furnace will be an efficient way to accomplish “carbon peak, carbon ne...
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MOF-derived nitrogen-doped iron–nickel oxide carbon nanotubes as efficient oxygen electrocatalyst for long-life rechargeable zinc–air batteries
具有高活性的电催化剂对于高能量密度的锌-空气电池至关重要。然而，电催化剂中析氧反应（OER）和氧还原反应（ORR）的缓慢动力学阻碍了锌-空气电池的发展。本文报道了一类通过简单热解策略制备的MOF衍生氮掺杂双金属氧化物封装的碳纳米管材料（FeNiO@NCNT）。FeNiO@NCNT对OER和ORR都表现出高催化活性。特别是，FeNiO@NCNT中的晶格氧和OH-为OER提供了更多的活性位点（金属活性位点除外），使FeNiO...
