A5003027404- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Catalysis for Biomass Conversion
- MXene and MAX Phase Materials
- Advanced battery technologies research
- Biofuel production and bioconversion
- Electrocatalysts for Energy Conversion
- Advanced Battery Technologies Research
- Transition Metal Oxide Nanomaterials
- Catalysis and Hydrodesulfurization Studies
- Graphene research and applications
- Extraction and Separation Processes
- Catalytic C–H Functionalization Methods
- Bone health and osteoporosis research
- X-ray Diffraction in Crystallography
- Asymmetric Hydrogenation and Catalysis
- Crystallization and Solubility Studies
- Catalysis and Oxidation Reactions
- Porphyrin and Phthalocyanine Chemistry
- Physics of Superconductivity and Magnetism
- Catalytic Cross-Coupling Reactions
- Ionic liquids properties and applications
- Conducting polymers and applications
- Metal-Organic Frameworks: Synthesis and Applications
SUNY Brockport
2024
Shaanxi University of Science and Technology
2015-2024
Health Center
2023-2024
Dalian National Laboratory for Clean Energy
2014-2022
Dalian Institute of Chemical Physics
1994-2022
Chinese Academy of Sciences
2005-2022
National Institute for Nanotechnology
2012-2020
Dalian University
2008-2020
The University of Texas at Austin
2020
China XD Group (China)
2015-2018
In this work we demonstrate that biomass-derived proteins serve as an ideal precursor for synthesizing carbon materials energy applications. The unique composition and structure of the carbons resulted in very promising electrochemical storage performance. We obtained a reversible lithium capacity 1780 mA h g−1, which is among highest ever reported any carbon-based electrode. Tested supercapacitor, exhibited capacitance 390 F with excellent cycle life (7% loss after 10 000 cycles). Such...
We created unique interconnected partially graphitic carbon nanosheets (10–30 nm in thickness) with high specific surface area (up to 2287 m2 g–1), significant volume fraction of mesoporosity 58%), and good electrical conductivity (211–226 S m–1) from hemp bast fiber. The are ideally suited for low (down 0 °C) through (100 temperature ionic-liquid-based supercapacitor applications: At °C a current density 10 A g–1, the electrode maintains remarkable capacitance 106 F g–1. 20, 60, 100 an...
We demonstrate that peat moss, a wild plant covers 3% of the earth's surface, serves as an ideal precursor to create sodium ion battery (NIB) anodes with some most attractive electrochemical properties ever reported for carbonaceous materials. By inheriting unique cellular structure moss leaves, resultant materials are composed three-dimensional macroporous interconnected networks carbon nanosheets (as thin 60 nm). The tissue is highly cross-linked, being rich in lignin and hemicellulose,...
Abstract Supercapacitor electrode materials are synthesized by carbonizing a common livestock biowaste in the form of chicken eggshell membranes. The carbonized membrane (CESM) is three‐dimensional macroporous carbon film composed interwoven connected fibers containing around 10 wt% oxygen and 8 nitrogen. Despite relatively low surface area 221 m 2 g −1 , exceptional specific capacitances 297 F 284 achieved basic acidic electrolytes, respectively, 3‐electrode system. Furthermore, electrodes...
Anatase TiO2 nanocrystals were successfully employed as anodes for rechargeable Na-ion batteries the first time. The mesoporous electrodes exhibited a highly stable reversible charge storage capacity of ∼150 mA h g−1 over 100 cycles, and able to withstand high rate cycling, fully recovering this after being cycled at rates 2 A g−1.
It is a challenge to meld the energy of secondary batteries with power supercapacitors. Herein, we created electrodes finely tuned for this purpose, consisting monolayer MnO nanocrystallites mechanically anchored by pore-surface terminations 3D arrays graphene-like carbon nanosheets ("3D-MnO/CNS"). The biomass-derived should offer synthesis cost advantage over comparably performing designer nanocarbons, such as graphene or nanotubes. High Li storage capacity achieved bulk conversion and...
Molybdenum disulfide (MoS2 ), a 2D-layered compound, is regarded as promising anode for sodium-ion batteries (SIBs) due to its attractive theoretical capacity and low cost. The main challenges associated with MoS2 are the rate capability suffering from sluggish kinetics of Na+ intercalation poor cycling stability owning stack sheets. In this work, unique architecture bundled defect-rich (BD-MoS2 ) that consists large vacancies by ultrathin MoO3 achieved via facile quenching process. When...
We employed a microwave synthesis process of cobalt phthalocyanine molecules templated by acid-functionalized multiwalled carbon nanotubes to create three-dimensional sponge-like graphene nanoarchitectures suited for ionic liquid-based electrochemical capacitor electrodes that operate at very high scan rates. The sequential "bottom-up" molecular and subsequent carbonization took less than 20 min complete. 3D are able deliver an energy density 7.1 W·h kg(-1) even extra power 48 000 W kg(-1)....
Capacitive storage has been considered as one type of Li-ion with fast faradaic surface redox reactions to offer high power density for electrochemical applications. However, it is often limited by low extent energy contribution during the charge/discharge process, providing insufficient influences total capacity in electrodes. In this work, we demonstrate a pseudocapacitance predominated (contributes 82% capacity) from an in-situ pulverization process FeOOH rods on rGO (reduced graphene...
Cobalt molybdate (CoMoO4) nanoplatelets with a crystalline-amorphous core-shell structure anchored via multi-walled carbon nanotubes were prepared by solvent-free microwave synthesis method. The entire procedure took only 15 min. nanocomposite shows promising capacitance of 170 F g−1 potential window 0.8 V, degrading 6.8% after 1000 cycles.
We employ a sulfur-assisted decomposition process to create agglomerates of large (200–500 nm) yet highly nanoporous three-dimensional MoO2 single crystals partially covered with few atomic layers MoS2 ("MoS2/MoO2 nanonetworks"). These materials are promising as lithium ion battery anodes. At current density 100 mA g–1, the MoS2/MoO2 nanonetworks exhibit reversible discharge specific capacity 1233 mAh only 5% degradation after 80 full charge/discharge cycles. Moreover at relatively fast...
Gold nanoparticles on a number of supporting materials, including anatase TiO2 (TiO2-A, in 40 nm and 45 μm), rutile (TiO2-R), ZrO2, Al2O3, SiO2 , activated carbon, were evaluated for hydrodeoxygenation guaiacol 6.5 MPa initial H2 pressure at 300 °C. The presence gold the supports did not show distinguishable performance compared to that alone conversion level product distribution, except TiO2-A-40 nm. lack marked catalytic activity other than suggests Au are catalytically active these...
Abstract The potassium‐ion battery (PIB) is an attractive energy storage device that possesses the potential advantages of high density and low cost. Herein, a pure 1T‐MoS 2 synthesized on graphene oxide assembled into hydrogel. hydrogel further tightened to compact /graphene (CTMG) bulk by densifying strategy capillary tension. When employed as anode for PIBs, CTMG electrode can store K + through reversible intercalation conversion electrochemistry, accompanied with fast kinetics since...
Inspired by its high-active and open layered framework for fast Li+ extraction/insertion reactions, Ni-rich oxide is proposed as an outstanding Na-intercalated cathode high-performance sodium-ion batteries. An O3-type Na0.75 Ni0.82 Co0.12 Mn0.06 O2 achieved through a facile electrochemical ion-exchange strategy in which ions are first extracted from the LiNi0.82 Na+ then inserted into framework. Furthermore, reaction mechanism of during investigated detail combining ex situ X-ray...
The shuttle effect of lithium polysulfides has been an important factor limiting the practical application lithium–sulfur batteries. CNF/Co-Co 9 S 8 -NC composites with a 3D hierarchical structure were prepared as polysulfide electrocatalyst.
A trapped field of over 3 T has been measured at 17.5 K in a magnetized stack two disc-shaped bulk MgB2 superconductors diameter 25 mm and thickness 5.4 mm. The samples were fabricated by uniaxial hot pressing, which is readily scalable, industrial technique, to 91% their maximum theoretical density. macroscopic critical current density derived from the data using Biot–Savart law consistent with local From this we conclude that density, therefore performance, limited flux pinning available...