A5085642188- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Supercapacitor Materials and Fabrication
- Electrocatalysts for Energy Conversion
- Advanced Battery Technologies Research
- CO2 Reduction Techniques and Catalysts
- Catalytic Processes in Materials Science
- Fuel Cells and Related Materials
- Graphene research and applications
- High Entropy Alloys Studies
- Ionic liquids properties and applications
- Covalent Organic Framework Applications
- Advanced Memory and Neural Computing
- Carbon dioxide utilization in catalysis
- Semiconductor materials and interfaces
- Electronic and Structural Properties of Oxides
- Advanced Photocatalysis Techniques
- Nanowire Synthesis and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Optimization and Packing Problems
- MXene and MAX Phase Materials
- Transition Metal Oxide Nanomaterials
- 2D Materials and Applications
- Conducting polymers and applications
Shanghai University
2022-2025
Peking University
2018-2023
Jiangxi Normal University
2014-2017
Huanggang Normal University
2017
Computational Physics (United States)
2017
Zhejiang Sci-Tech University
2015
The development of sufficiently effective catalysts with extremely superior performance for electrocatalytic hydrogen production still remains a formidable challenge, especially in acidic media. Here, we report ultrasmall high-entropy alloy (us-HEA) nanoparticles (NPs) the best-level evolution reaction (HER). us-HEA (NiCoFePtRh) NPs show an average diameter 1.68 nm, which is smallest size reported HEAs. atomic structure, coordinational and electronic structure us-HEAs were comprehensively...
Layered Li-rich cathode materials with high reversible energy densities are becoming prevalent. However, owing to the activation of low-potential redox couples and progressively irreversible structural transformation caused by local adjustment transition-metal ions in intra/interlayer driven anionic redox, continuous capacity degradation, voltage decay emerge, thus greatly reducing density increasing difficulty battery system management. Herein, layered higher intralayer configuration...
Owing to the inherent properties of aqueous electrolytes, zinc-ion batteries are considered be a promising energy storage system. Unfortunately, water-induced issues, such as hydrogen evolution and corrosion reaction, inevitably occur on Zn anode surface during cycling, which leads poor electrochemical performance. The gel polymer electrolyte would reduce parasitic reactions associated with water. However, nondegradable is harmful environment. Herein, aim alleviate serious issues derived...
Abstract Zn‐ion batteries (ZIBs) have long suffered from the unstable Zn metal anode, which faces numerous challenges concerning dendrite growth, corrosion, and hydrogen evolution reaction. The absence of H 2 O adsorption control techniques has become a bottleneck for further development ZIBs. Using stearic acid (SA)‐modified Cu@Zn (SA‐Cu@Zn) anode as an example, this work illustrates how lotus effect controls energy on anode. In situ integrated Cu nanorods arrays hydrophobic long‐chain...
High-entropy solid-solution alloys have generated significant interest in energy conversion technologies. However, structurally ordered high-entropy intermetallic (HEI) nanoparticles (NPs) been rarely reported electrocatalysis applications. Here, we demonstrate PtIrFeCoCu HEI (PIFCC-HEI) NPs with extremely superior performance for both oxygen reduction reaction (ORR) and H2/O2 fuel cells. The PIFCC-HEI show an average diameter of 6 nm. Atomic structural characterizations including...
Layered Li-rich oxides (LROs) that exhibit anionic and cationic redox are extensively studied due to their high energy storage capacities. However, voltage hysteresis, which reduces the conversion efficiency of battery, is a critical limitation in commercial application LROs. Herein, using two Li2RuO3 (LRO) model materials with C2/c P21/m symmetries, we explored relationship between hysteresis electronic structure by neutron diffraction, situ X-ray powder absorption spectroscopy, macro...
Hydrogen evolution reaction (HER) has become a key factor affecting the cycling stability of aqueous Zn-ion batteries, while corresponding fundamental issues involving HER are still unclear. Herein, mechanisms on various crystalline surfaces have been investigated by first-principle calculations based density functional theory. It is found that Volmer step rate-limiting Zn (002) and (100) surfaces, while, rates (101), (102) (103) determined Tafel step. Moreover, correlation between activity...
Abstract Aqueous zinc‐ion batteries (ZIBs) hold significant promise for large‐scale energy storage. While considerable strides have been made in modifying separators, the challenge of developing dendrite‐free, corrosion‐resistant, and cost‐effective separators achieving extended cycling performance Zn anodes persists. In light this, a TiO 2 coating separator to mitigate interfacial corrosion passivation reactions, thereby facilitating high‐performance ZIBs is designed. This study delves into...
Vanadium-based oxides are considered desirable cathode materials for aqueous zinc ion batteries owing to their high theoretical specific capacity and open crystal structure.
The search for new high-performance and low-cost cathode materials Li-ion batteries is a challenging issue in research. Commonly used cobalt- or nickel-based cathodes suffer from limited resources safety problems that greatly restrict their large-scale application, especially electric vehicles energy storage. Here, novel Li-Mn-O Li-rich material with R3¯m symmetry developed via intralayer Li/Mn disordering the Mn-layer. Due to special atomic arrangement higher respect C2/m symmetry, oxygen...
Abstract Li-rich layered oxide cathode materials show high capacities in lithium-ion batteries owing to the contribution of oxygen redox reaction. However, structural accommodation this reaction usually results O–O dimerization, leading release and poor electrochemical performance. In study, we propose a new response mechanism inhibiting dimerization for by tuning local symmetry around ions. Compared with regular Li 2 RuO 3 , as-prepared local-symmetry-tuned involves telescopic O–Ru–O...
Abstract Nano-ordered intermetallic compounds have generated great interest in fuel cell applications. However, the synthesis of non-preciousearly transition metal nanoparticles remains a formidable challenge owing to extremely oxyphilic nature and very negative reduction potentials. Here, we successfully synthesized non-precious Co 3 Ta nanoparticles, with uniform size 5 nm. Atomic structural characterizations X-ray absorption fine structure measurements confirm atomically ordered...
Aqueous zinc ion battery is a potential alternative for stationary energy storage system owing to the inherent properties of Zn anode. However, anode suffers from serious dendrite due uneven plating. Thus, inspired by nano-drug delivery target site tumor cell, it would be promising strategy introduce targeted in electrolyte even Passive transport plays an important role delivery, which presents released carrier based on polymer particular site. As proof-of-concept, pseudopolyrotaxane...
Abstract Aqueous zinc‐ion batteries (AZIBs) have attracted considerable attention. However, due to the uneven distribution of charge density at Zn anode‐electrolyte interface, severe dendrites and corrosion are generated during cycling. In this work, a facile scalable strategy address above‐mentioned issues has been proposed through regulating interface. As proof concept, amidinothiourea (ATU) with abundant lone‐pair electrons is employed as an interfacial modifier for The uniform increased...
Abstract P2‐phase layered cathodes play a pivotal role in sodium‐ion batteries due to their efficient Na + intercalation chemistry. However, limited by crystal disintegration and interfacial instability, bulk failure plague electrochemical performance. To address these challenges, structural enhancement combined with surface modification is achieved through trace Y doping. Based on synergistic combination of experimental results density functional theory (DFT) calculations, the introduction...
The migration of Zn2+ ions is significantly more challenging compared to that Li+ within the same crystalline framework, leading poor rate performance zinc-ion batteries (ZIBs). Compared Li+, slower vaguely attributed stronger electrostatic interaction induced by Zn2+. Herein, rule how size channel and affect in α-V2O5 has been systematically investigated first-principle calculations. It found expanding layer spacing can facilitate migration. Once surpasses a certain threshold, further...