A5030298088- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- ZnO doping and properties
- Copper-based nanomaterials and applications
- Electronic and Structural Properties of Oxides
- Supercapacitor Materials and Fabrication
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Advanced Battery Technologies Research
- Hydrogen Storage and Materials
- Semiconductor materials and devices
- Synthesis and properties of polymers
- Advanced Photocatalysis Techniques
- Hybrid Renewable Energy Systems
- Silicone and Siloxane Chemistry
- Thermal Expansion and Ionic Conductivity
- Epoxy Resin Curing Processes
- Ga2O3 and related materials
- Organic Light-Emitting Diodes Research
- Metal and Thin Film Mechanics
- Polyoxometalates: Synthesis and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Fiber-reinforced polymer composites
- Conducting polymers and applications
Xi'an Technological University
2021-2025
Xi'an Shiyou University
2020-2022
University of Electronic Science and Technology of China
2019-2022
China XD Group (China)
2020
University of Oslo
2014-2020
National Tsing Hua University
1998-2005
Abstract Non-dissociative chemisorption solid-state storage of hydrogen molecules in host materials is promising to achieve both high capacity and uptake rate, but there the lack non-dissociative theories that can guide rational design materials. Herein, we establish generalized principle such via first-principles calculations, theoretical analysis focused experimental verifications a series heteroatom-doped-graphene-supported Ca single-atom carbon nanomaterials as efficient An intrinsic...
Halide solid electrolytes have been considered as the most promising candidates for practical high-voltage all-solid-state lithium-ion batteries (ASSLIBs) due to their moderate ionic conductivity and good interfacial compatibility with oxide cathode materials. Aliovalent ion doping is an effective strategy increase of halide electrolytes. However, effects on electrochemical stability window carbon additive performance are still unclear by far. Herein, a series Zr-doped Li3-xEr1-xZrxCl6 (SEs)...
Li- and Mn-rich layered oxides (LMROs) are considered the most promising cathode candidates for next-generation high-energy lithium-ion batteries. The poor cycling stability fast voltage fading resulting from oxygen release during charging, however, severely hinders their practical application. Herein, a strategy of introducing an additional redox couple is proposed to eliminate persistent problem release. As proof concept, Li1.2 Ni0.13 Co0.13 Mn0.54 O2 , which typical LMRO cathode,...
Solid-state batteries (SSBs) have received widespread attention with their high safety and energy density characteristics. However, solid-solid contacts in the internal electrode material material/solid electrolyte (SE) interfaces, as well severe electrochemo-mechanical effects caused by stress due to volume change of active material, these problems hinder ion/electron transport within SSBs, which significantly deteriorates electrochemical performance. Applying fabrication pressures stack...
Abstract Solid‐state storage of hydrogen molecules in carbon‐based light metal single‐atom materials is promising to achieve both high capacity and uptake rate, but there a lack fundamental understanding design principles guide the rational materials. Here, theoretical relationship established between capacity/rate structures heteroatom‐doped‐graphene‐supported Li single atom for high‐efficient solid‐state storage, which verified by combining spectroscopic characterization, H 2...
Owing to their defect tolerance and phase stability, α-CsPbI3 colloidal quantum dots (CQDs) with high mobility 80–95% photoluminescence yield (PLQY) are promising candidates for next-generation photovoltaics (PVs). Recently, CQD PVs have begun show power conversion efficiencies of 13.4%, the open-circuit voltage approaching Shockley–Queisser limit. These devices stable in ambient conditions several months. However, short-circuit current density (JSC) ∼12 mA/cm2 is low, limiting mechanisms...
Poor cyclic stability and low rate performance due to dramatic volume change intrinsic electronic conductivity are the two key issues needing be urgently solved in silicon (Si)-based anodes for lithium-ion batteries. Herein, a novel tin (Sn)-bonded Si anode is proposed first time. Sn, which has high conductivity, used bond Si-anode material copper (Cu) current collector together using hot-pressed method with temperature slightly above melting point of Sn. The cycling electrode studied...
( TiO 2 ) x −( Ta O 5 1−x thin films were prepared with radio-frequency magnetron sputtering deposition in this study. The dielectric constant measured from these appears to critically depend on the amount of TiO2 incorporated into film and post-anneal condition. composition dependence was found similar that reported (TiO2)x−(Ta2O5)1−x bulk. highest value is about 55 for a content 8% annealing at 800 °C. Compared pure Ta2O5 films, significant enhancement obtained by adding small quantity TiO2.
Herein, a unique structural Si‐based anode with high electronic conductivity, compact density, and no traditional organic binder is put forward. By adding few amounts of Sn to the Si material, followed by carbonization after general preparation subsequently hot pressing, melts squeezes during bonding strongly particles, an interlayer Cu 3 Si/Cu in situ formed at interface active materials current collector, resulting metallurgical between them. The binder‐derived carbon coats on coupling...
Abstract Pseudocapacitive storage of multivalent ions, especially Ca 2+ , in heteroatom‐doped carbon nanomaterials is promising to achieve both high energy and power densities, but there the lack pseudocapacitive theories that enable rational design materials for calcium‐ion batteries. Herein, general principles are established anode batteries via density functional theory calculations experimental verifications a series graphene as an efficient anode. A novel descriptor Φ proposed correlate...
To achieve large-scale hydrogen storage for growing high energy density and long-life demands in end application, the 2LiBH4-MgH2 (LMBH) reactive hydride system attracts huge interest owing to its capacity thermodynamically favorable reversibility. The sluggish dehydrogenation kinetics unsatisfactory cycle life, however, remain two challenges. Herein, a bimetallic titanium-niobium oxide with two-dimensional nanoflake structure (2D TiNb2O7) is selected elaborately as an active precursor that...
In methylammonium lead iodide (MAPbI3) perovskite solar cells (PSCs), the device performance is strongly influenced by TiO2 electron transport layer (ETL). Typically, ETL needs to simultaneously be thin and pinhole-free have high transmittance avoid shunting. this work, we develop an "in situ solidification" process following spin coating in which titanium-based precursor (titanium(diisopropoxide) bis(2,4-pentanedionate)) dried under vacuum rapidly achieve continuous layers. We refer as...
Abstract In the realm of sodium‐ion batteries (SIBs), Mn‐based layered oxide cathodes have garnered considerable attention owing to their anionic redox reactions (ARRs). Compared other types popular cathodes, with ARRs exhibit outstanding specific capacity and energy density, making them promising for SIB applications. However, these still face some scientific challenges that need be addressed. This review systematically summarizes composition, structure, oxygen‐redox mechanism, performance...