A5102515434- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Electrocatalysts for Energy Conversion
- Dielectric materials and actuators
- MXene and MAX Phase Materials
- Catalytic Processes in Materials Science
- Metal-Organic Frameworks: Synthesis and Applications
- Synthesis and properties of polymers
- Graphene research and applications
- Nanomaterials for catalytic reactions
- Electromagnetic wave absorption materials
- Silicone and Siloxane Chemistry
- Layered Double Hydroxides Synthesis and Applications
- Catalysis and Oxidation Reactions
- Advanced Nanomaterials in Catalysis
- Advanced Sensor and Energy Harvesting Materials
- High voltage insulation and dielectric phenomena
- Advanced Battery Technologies Research
- Copper Interconnects and Reliability
- Bone Tissue Engineering Materials
- Wireless Sensor Networks and IoT
- Nanocluster Synthesis and Applications
- Hydrogen Storage and Materials
China University of Petroleum, East China
2021-2024
Jilin University
2017-2024
Central South University of Forestry and Technology
2024
Central South University
2024
Civil Aviation Flight University of China
2024
China Energy Engineering Corporation (China)
2023-2024
State Key Laboratory of Automotive Simulation and Control
2017-2021
Jilin Medical University
2013-2021
Materials Science & Engineering
2020-2021
Southern Medical University
2018-2020
Abstract Cobalt hydroxide is a promising electrode material for supercapacitors due to the high capacitance and long cyclability. However, energy storage/conversion mechanism of cobalt still vague at atomic level. Here we shed light on how functions as supercapacitor operando conditions. We find that specific cycling life involve complete modification morphology, which usually believed be unfavourable but in fact has little influence performance. The conversion during charge/discharge...
Abstract Metal organic frameworks (MOFs) are considered as promising candidates for supercapacitors because of high specific area and potential redox sites. However, their shuffled orientations low conductivity nature lead to severely‐degraded performance. Designing an accessibly‐manipulated efficient method address those issues is outmost significance MOF application in supercapacitors. It the common way that MOFs scarify themselves templates or precursors prepare target products. But...
Achieving an effective nitrogen reduction reaction (NRR) under mild conditions is a great challenge for industrial ammonia synthesis. NRR often accompanied by competing hydrogen evolution (HER), which causes extremely low Faraday efficiency. We systematically investigated the reactivity of atom-pair catalysts (APCs) formed 20 transition metal (TM) elements supported N-doped graphene via three pathways. By analyzing correlation among limiting potential, Gibbs free energy, and d-band center,...
This work presents the architecture and mechanistic clarification of oriented bimetallic CoNi-MOF electrode materials for high-performance supercapacitors.
Abstract Due to the difficulty in fabricating bioceramic scaffolds with smaller pore sizes by current 3D printing technique, effect of (below 400 µm) printed on bone regeneration and biomechanical behavior is never studied. Herein beta‐tricalcium phosphate (β‐TCP) interconnected pores three different (100, 250, are fabricated plotting. The resultant then implanted into rat critical‐sized calvarial defects without any seeded cells. A custom‐designed device developed investigate properties...
Abstract Metal–organic frameworks (MOFs) are promising materials for batteries and supercapacitors. However, random crystal orientations low conductivity can result in poor performance. Designing a convenient method to address these issues is therefore an important challenge. Here we describe efficient strategy fabricate self-supported MOF wall-like architectures with uniform orientation on carbon nanowalls (CNWs) as seedbeds. In addition, gain molecular-level insight into the interface...
Metal oxides as electrode materials are of great potential for rechargeable aqueous batteries. However, they suffer from inferior cycle stability and rate capability because poor electronic ionic conductivities. Herein, taking vertically orientated Bi2O3 nanoflakes on Ti substrates examples, we find that the δ-Bi2O3 with plenty positively charged oxygen defects show remarkably higher specific capacity (264 mA h g-1) far superior than α-Bi2O3 less vacancies. Through pinpointing existence form...
This review systematically sums up the design principles and strategies for MOF precursors discusses relationship between target porous carbon accurate architecture of high-performance supercapacitors.
Aqueous zinc-iodine batteries (AZIBs) are attracting increasing attention because of their high safety and abundance resources. However, the performance AZIBs is compromised by inadequate confinement soluble polyiodides, undesired shuttle effect, slow reaction kinetics. In this study, a porous aromatic framework (PAF) with abundant benzene motifs well-organized pore structure adopted as iodine host, which exhibits adsorption capacity robust polyiodide confinement. Both experimental...
Nickel-cobalt (NiCo) phosphides (NCPs) possess high electrochemical activity, which makes them promising candidates for electrode materials in aqueous energy storage devices, such as supercapacitors and zinc (Zn) batteries. However, the actual specific capacitance rate capability of NCPs require further improvement, can be achieved through reasonable heterostructural design loading conditions active on substrates. Herein, novel hierarchical Bi-NCP heterogeneous structures with built-in...
Ni/CeO2 enables either methane decomposition or water electrolysis for pure hydrogen production. , prepared by a sol-gel method with only one heat treatment step, was used to catalyze the generation of H2 . The solid byproduct, /carbon nanotube (CNT), further employed as an electrocatalyst in evolution reaction (HER) catalyst exhibits excellent activity because CeO2 prevents carbon encapsulation Ni nanoparticles during preparation process and forms special metal-support interface Ni. derived...
To improve cell attachment and to understand the effects of positive charge on behavior osteoblasts, 2-(methacryloyloxy)ethyl-trimethylammonium chloride (MAETAC), a positively charged monomer, was incorporated into poly(ethylene glycol)-diacrylate (PEGDA) hydrogel. The physicochemical properties resultant polymers, including degree acrylation PEGDA, pKa MAETAC, swelling ratio, zeta potential, protein adsorption were investigated. Meanwhile, osteoblast-like MC3T3-E1 cells seeded hydrogel...
Abstract A high cycling stability of dual‐ion batteries is greatly challenging, as the size required for inserting anions matches only insufficiently with interlayer spacing graphite which often used positive electrode. Herein, an activated expanded (AEG) electrode successfully prepared via KOH treatment. The loose structure AEG accommodates volume expansion caused by anion intercalation, and large specific surface area facilitates immersion electrolyte ions to afford more energy density....
Energy density can be substantially raised and even maximized if the bulk of an electrode material is fully utilized. Transition metal oxides based on conversion reaction mechanism are imperative choice due to either constructing nanostructure or intercalation pseudocapacitance with their intrinsic limitations. However, utilization transition hindered by poor understanding atomic‐level mechanism, particularly it largely missing at clarifying how phase transformation (conversion reaction)...
Polymer-based dielectrics are extensively applied in various electrical and electronic devices such as capacitors, power transmission cables microchips, which a variety of distinct performances the dielectric thermal properties desired. To fulfil these properties, emerging machine learning (ML) technique has been used to establish surrogate model for structure–property linkage analysis, provides an effective tool rational design chemical morphological structure polymers/nanocomposites. In...
Abstract The structural details of carbon materials directly affect their properties as an electrode material, such specific capacitance and coulomb efficiency. Therefore, the analysis has always been important step in mechanistic insight into roles electrochemical energy storage. Raman spectroscopy, molecular spectroscopy technique, widely used understanding lattice vibration mechanics providing information on chemical structure at level, well microstructure materials. In addition,...
Layered double hydroxides (LDHs) are one class of two-dimensional materials, with tunable chemical composition and large interlayer spacing, that is a potential cathode material candidate for aqueous zinc-ion batteries (AZIBs). Nevertheless, the low conductivity fragile structure LDH have impeded their practical application in AZIBs. Herein, ternary CoMnAl synthesized via facile coprecipitation method as AZIB. The interaction between trivalent Al3+ Mn3+ not only lowers redox energy barrier...