Vanadium metal-organic frameworks derived VOx/Carbon nano-sheets and paperclip-like VOx/nitrogen-doped carbon nanocomposites for sodium-ion battery electrodes

SKODA, David, Tomas KAZDA, Barbora HANULIKOVA, Ondrej CECH, Vít VYKOUKAL, Jan MICHALICKA, Pavel CUDEK and Ivo KURITKA. Vanadium metal-organic frameworks derived VOx/Carbon nano-sheets and paperclip-like VOx/nitrogen-doped carbon nanocomposites for sodium-ion battery electrodes. Materials Chemistry and Physics. LAUSANNE: Elsevier, 2022, vol. 278, FEB, p. 125584-125600. ISSN 0254-0584. Available from: https://dx.doi.org/10.1016/j.matchemphys.2021.125584.

Basic information

• Original name: Vanadium metal-organic frameworks derived VOx/Carbon nano-sheets and paperclip-like VOx/nitrogen-doped carbon nanocomposites for sodium-ion battery electrodes
• Authors: SKODA, David, Tomas KAZDA, Barbora HANULIKOVA, Ondrej CECH, Vít VYKOUKAL (203 Czech Republic, guarantor, belonging to the institution), Jan MICHALICKA, Pavel CUDEK and Ivo KURITKA.
• Edition: Materials Chemistry and Physics, LAUSANNE, Elsevier, 2022, 0254-0584.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10405 Electrochemistry
• Country of publisher: Switzerland
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 4.600
• RIV identification code: RIV/00216224:14740/22:00127888
• Organization unit: Central European Institute of Technology
• Doi: http://dx.doi.org/10.1016/j.matchemphys.2021.125584
• UT WoS: 000764174500004
• Keywords in English: Vanadium; Metal-organic framework; Carbon; Nanocomposites; Sodium-ion batteries
• Tags: CF CRYO, rivok
• Tags: International impact, Reviewed

Abstract

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.

Links

• LM2018127, research and development project: Name: Česká infrastruktura pro integrativní strukturní biologii (Acronym: CIISB)

Investor: Ministry of Education, Youth and Sports of the CR

• 90110, large research infrastructures: Name: CzechNanoLab