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Article
Open AccessLow-energy electronic states of carbon nanocones in an electric field
The low-energy electronic states and energy gaps of carbon nanocones in an electric field are studied using a single-π-band tight-binding model. The analysis considers five perfect carbon nanocones with discli...
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Article
Open AccessOrdered SrTiO3 Nanoripples Induced by Focused Ion Beam
Ordered nanoripples on the niobium-doped SrTiO3 surfaces were fabricated through focused ion beam bombardment. The surface morphology of the SrTiO3 nanoripples was characterized using in situ focused ion beam/sca...
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Article
Open AccessProgress of Microfluidics for Biology and Medicine
Microfluidics has been considered as a potential technology to miniaturize the conventional equipments and technologies. It offers advantages in terms of small volume, low cost, short reaction time and highthr...
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Article
Open AccessNovel Evolution Process of Zn-Induced Nanoclusters on Si(111)-(7×7) Surface
A tiny number of Zn atoms were deposited on Si(111)-(7×7) surface to study the evolution process of Zn-induced nanoclusters. After the deposition, three types (type I, II, and III) of Zn-induced nanoclusters w...
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Article
Open AccessEffect of rGO Coating on Interconnected Co3O4 Nanosheets and Improved Supercapacitive Behavior of Co3O4/rGO/NF Architecture
In this study, the effect of reduced graphene oxide (rGO) on interconnected Co3O4 nanosheets and the improved supercapacitive behaviors is reported. By optimizing the experimental parameters, we achieved a specif...
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Article
Open AccessCuCr2O4@rGO Nanocomposites as High-Performance Cathode Catalyst for Rechargeable Lithium–Oxygen Batteries
Rechargeable lithium–oxygen batteries have been considered as a promising energy storage technology because of their ultra-high theoretical energy densities which are comparable to gasoline. In order to improv...
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Article
Open AccessFinite element simulation and experimental test of the wear behavior for self-lubricating spherical plain bearings
In this study, based on the classical Archard adhesion wear theory, a three-dimensional finite element model was established, with the aim of simulating the failure process of self-lubricating spherical plain ...
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Article
Open AccessDevelopment of a novel cycling impact–sliding wear rig to investigate the complex friction motion
In many industrial devices, impact-sliding wear is caused by a variety of complex vibrations between the contacted interfaces. Under actual conditions, impact and sliding motions do not occur in only one direc...
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Article
Open AccessIntegrated System of Solar Cells with Hierarchical NiCo2O4 Battery-Supercapacitor Hybrid Devices for Self-Driving Light-Emitting Diodes
Integration of solar cells, BSHs, and LEDs was developed for energy conversion, storage, and utilization in one system.
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Article
Open AccessExperimental investigation of EHD grease lubrication in finite line contacts
The objective of this study was to investigate the grease-lubricated film-forming mechanisms in the finite line contact and to improve the grease-lubricated finite line contact’s film-forming capacity. An elas...
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Article
Open AccessAtomic Layer Deposition-Assisted Construction of Binder-Free Ni@N-Doped Carbon Nanospheres Films as Advanced Host for Sulfur Cathode
Construct binder-free Ni@N-doped carbon nanospheres (Ni@N-CNSs) films were prepared and used as sulfur host.
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Article
Open Access2D MXenes as Co-catalysts in Photocatalysis: Synthetic Methods
Two-dimensional transition metal carbides/nitrides (MXenes) as co-catalysts were summarized and classified according to the different synthesis methods use...
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Article
Open AccessIn Situ Electrochemical Mn(III)/Mn(IV) Generation of Mn(II)O Electrocatalysts for High-Performance Oxygen Reduction
MnO rich in oxygen vacancies has been synthesized.
The synthesized MnO demonstrates e...
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Article
Open AccessA Bulk-Heterostructure Nanocomposite Electrolyte of Ce0.8Sm0.2O2-δ–SrTiO3 for Low-Temperature Solid Oxide Fuel Cells
Bulk-heterostructure electrolytes based on Ce0.8Sm0.2O2-δ and SrTiO3 are developed for solid oxide fuel cells
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Article
Open AccessEfficient Catalytic Conversion of Polysulfides by Biomimetic Design of “Branch-Leaf” Electrode for High-Energy Sodium–Sulfur Batteries
3D “branch-leaf” biomimetic design is proposed for high-performance Na-S batteries.
The conductiv...
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Article
Open AccessA General Self-Sacrifice Template Strategy to 3D Heteroatom-Doped Macroporous Carbon for High-Performance Potassium-Ion Hybrid Capacitors
A newly versatile self-sacrifice method to fabricate selenium and nitrogen co-doped 3D macroporous carbon was developed.
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Article
Open AccessHydrogen Production via Hydrolysis and Alcoholysis of Light Metal-Based Materials: A Review
An overview of the recent advances in hydrogen production from light metal-based materials is presented, including hydrolysis of Mg-based alloys and hydrid...
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Article
Open AccessPorous Carbon Architecture Assembled by Cross-Linked Carbon Leaves with Implanted Atomic Cobalt for High-Performance Li–S Batteries
SiO2-mediated ZIF-L is developed to prepare Co–N4@2D/3D carbon.
Co–N4@2D/3D integrates the advant...
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Article
Open AccessWater-Dispersible CsPbBr3 Perovskite Nanocrystals with Ultra-Stability and its Application in Electrochemical CO2 Reduction
Water-dispersible CsPbBr3 nanocrystals (NCs) exhibit ultra-stability (>200 days) in water with only ~20% decline of the initial photoluminescence intensity...
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Article
Open AccessA low-to-high friction transition in gradient nano-grained Cu and Cu-Ag alloys
A unique low-to-high friction transition is observed during unlubricated sliding in metals with a gradient nano-grained (GNG) surface layer. After persisting in the low-friction state (0.2–0.4) for tens of tho...