Další formáty:
BibTeX
LaTeX
RIS
@article{2245549,
author = {Skoda, David and Kazda, Tomas and Hanulikova, Barbora and Cech, Ondrej and Vykoukal, Vít and Michalicka, Jan and Cudek, Pavel and Kuritka, Ivo},
article_location = {LAUSANNE},
article_number = {FEB},
doi = {http://dx.doi.org/10.1016/j.matchemphys.2021.125584},
keywords = {Vanadium; Metal-organic framework; Carbon; Nanocomposites; Sodium-ion batteries},
language = {eng},
issn = {0254-0584},
journal = {Materials Chemistry and Physics},
title = {Vanadium metal-organic frameworks derived VOx/Carbon nano-sheets and paperclip-like VOx/nitrogen-doped carbon nanocomposites for sodium-ion battery electrodes},
url = {https://www.sciencedirect.com/science/article/pii/S0254058421013675?via%3Dihub},
volume = {278},
year = {2022}
}
TY - JOUR
ID - 2245549
AU - Skoda, David - Kazda, Tomas - Hanulikova, Barbora - Cech, Ondrej - Vykoukal, Vít - Michalicka, Jan - Cudek, Pavel - Kuritka, Ivo
PY - 2022
TI - Vanadium metal-organic frameworks derived VOx/Carbon nano-sheets and paperclip-like VOx/nitrogen-doped carbon nanocomposites for sodium-ion battery electrodes
JF - Materials Chemistry and Physics
VL - 278
IS - FEB
SP - 125584
EP - 125584
PB - Elsevier
SN - 02540584
KW - Vanadium
KW - Metal-organic framework
KW - Carbon
KW - Nanocomposites
KW - Sodium-ion batteries
UR - https://www.sciencedirect.com/science/article/pii/S0254058421013675?via%3Dihub
N2 - In this work, vanadium metal-organic framework derived VOx/carbon and VOx/N-doped carbon nanocomposites are presented. The methodology introduced here is based on a novel polyol synthesis of vanadium metal-organic frameworks (MOFs) involving a microwave-assisted solvothermal reaction of vanadyl acetylacetonate with biphenyl-4,4′-dicarboxylic acid (Bpdc) and/or 2,2′-bipyridine-4,4′-dicarboxylic acid (NBpdc) in diethylene glycol (DEG) at the temperature of 230 °C. The V-based MOFs, labeled as V-Bpdc and V-NBpdc, were used as precursors for the preparation of VOx/carbon and VOx/N-doped carbon nanocomposites with unique sponge-like nano-sheet and paperclip-like morphology, respectively. The nanocomposites were obtained via thermal transformation of as-prepared vanadium MOFs in the argon atmosphere at 600 °C. The VOx/carbon sample consists of nano-sheets with the thickness 5–20 nm while the VOx/N-doped carbon paperclip-like nanocomposite has a rod diameter 35–70 nm. It was found that the approach reported here provides an effective and simple preparation pathway of carbon-based nanocomposites containing homogeneously distributed VOx species. Both V-MOFs and V-MOF-derived nanocomposites were characterized by the variety of physicochemical methods. In the following step, the obtained nanocomposites were investigated as electrode materials in sodium-ion batteries. Based on the obtained results, high electrochemical activities of VOx/carbon and VOx/N-doped carbon nanocomposites were evidenced. Particularly, in the case of VOx/N-doped carbon-based electrode, high capacity and low irreversible capacity were achieved. Therefore, reported materials are found to be promising candidates for electrode materials in sodium-ion batteries.
ER -
SKODA, David, Tomas KAZDA, Barbora HANULIKOVA, Ondrej CECH, Vít VYKOUKAL, Jan MICHALICKA, Pavel CUDEK a Ivo KURITKA. Vanadium metal-organic frameworks derived VOx/Carbon nano-sheets and paperclip-like VOx/nitrogen-doped carbon nanocomposites for sodium-ion battery electrodes. \textit{Materials Chemistry and Physics}. LAUSANNE: Elsevier, 2022, roč.~278, FEB, s.~125584-125600. ISSN~0254-0584. Dostupné z: https://dx.doi.org/10.1016/j.matchemphys.2021.125584.
|
