Publication result detail

Fluorinated Transition Metal Carbides for Flexible Supercapacitors

VAGHASIYA, J.; MAYORGA-MARTINEZ, C.; PLUTNAR, J.; PUMERA, M.

Original Title

Fluorinated Transition Metal Carbides for Flexible Supercapacitors

English Title

Fluorinated Transition Metal Carbides for Flexible Supercapacitors

Type

WoS Article

Original Abstract

The mixed, hexagonal, layered carbides and nitrides known as the MAX phases are utilized in diverse electrochemical devices, in similar ways as graphite is used. Fluorinated graphite shows significantly improved electrochemical energy storage performance when compared to graphite, and while the carbides MAX phases are extensively studied, fluorine-doped MAX phases are yet to be examined. Herein, a series of fluorinated MAX phase materials suitable as a viable electrode material for flexible supercapacitors (FSCs) were prepared by using a fluorination route. The insertion of fluorine as a heteroatom into the MAX phase structures leads to a significant improvement of their structural, wettability, and electrochemical properties. Various electrochemical and morphological characterizations were performed to investigate the influence of various metal (M) elements (e.g., Ti, Ta, V, Cr, and Mo) on the fluorinated MAX phase electrodes. Moreover, the electrochemical outcomes demonstrate that the fluorinated materials effectively increase the capacitance and power density of the electrodes, and the fundamental concepts are established. As a proof concept, supremely FSCs were utilized as a portable power source for powering a digital timer.

English abstract

The mixed, hexagonal, layered carbides and nitrides known as the MAX phases are utilized in diverse electrochemical devices, in similar ways as graphite is used. Fluorinated graphite shows significantly improved electrochemical energy storage performance when compared to graphite, and while the carbides MAX phases are extensively studied, fluorine-doped MAX phases are yet to be examined. Herein, a series of fluorinated MAX phase materials suitable as a viable electrode material for flexible supercapacitors (FSCs) were prepared by using a fluorination route. The insertion of fluorine as a heteroatom into the MAX phase structures leads to a significant improvement of their structural, wettability, and electrochemical properties. Various electrochemical and morphological characterizations were performed to investigate the influence of various metal (M) elements (e.g., Ti, Ta, V, Cr, and Mo) on the fluorinated MAX phase electrodes. Moreover, the electrochemical outcomes demonstrate that the fluorinated materials effectively increase the capacitance and power density of the electrodes, and the fundamental concepts are established. As a proof concept, supremely FSCs were utilized as a portable power source for powering a digital timer.

Keywords

flexible device; MXene; fluorine chemistry; energy storage device; MAX phase

Key words in English

flexible device; MXene; fluorine chemistry; energy storage device; MAX phase

Authors

VAGHASIYA, J.; MAYORGA-MARTINEZ, C.; PLUTNAR, J.; PUMERA, M.

RIV year

2023

Released

23.05.2022

Publisher

AMER CHEMICAL SOC

Location

WASHINGTON

ISBN

2574-0962

Periodical

ACS Applied Energy Materials

Volume

5

Number

5

State

United States of America

Pages from

6353

Pages to

6362

Pages count

10

URL

https://pubs.acs.org/doi/10.1021/acsaem.2c00736

BibTex

@article{BUT178692,
  author="Jayraj Vinubhai {Vaghasiya} and Carmen C. {Mayorga-Martinez} and Jan {Plutnar} and Martin {Pumera}",
  title="Fluorinated Transition Metal Carbides for Flexible Supercapacitors",
  journal="ACS Applied Energy Materials",
  year="2022",
  volume="5",
  number="5",
  pages="6353--6362",
  doi="10.1021/acsaem.2c00736",
  issn="2574-0962",
  url="https://pubs.acs.org/doi/10.1021/acsaem.2c00736"
}