Nb-based MXenes for efficient electrochemical sensing of small biomolecules in the anodic potential

P. Abdul Rasheed; Ravi P. Pandey; Tricia Gomez; Khadeeja A. Jabbar; Kaitlyn Prenger; Michael Naguib; Brahim Aïssa; Khaled A. Mahmoud

Electrochemistry Communications (Oct 2020)

Nb-based MXenes for efficient electrochemical sensing of small biomolecules in the anodic potential

P. Abdul Rasheed,
Ravi P. Pandey,
Tricia Gomez,
Khadeeja A. Jabbar,
Kaitlyn Prenger,
Michael Naguib,
Brahim Aïssa,
Khaled A. Mahmoud

Affiliations

P. Abdul Rasheed: Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, P.O. Box 34110, Doha, Qatar
Ravi P. Pandey: Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, P.O. Box 34110, Doha, Qatar
Tricia Gomez: Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, P.O. Box 34110, Doha, Qatar
Khadeeja A. Jabbar: Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, P.O. Box 34110, Doha, Qatar
Kaitlyn Prenger: Department of Physics and Engineering Physics, Tulane University, New Orleans, LA 70118, USA
Michael Naguib: Department of Physics and Engineering Physics, Tulane University, New Orleans, LA 70118, USA
Brahim Aïssa: Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, P.O. Box 34110, Doha, Qatar
Khaled A. Mahmoud: Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, P.O. Box 34110, Doha, Qatar; Department of Physics & Mathematical Engineering, Faculty of Engineering, Port Said University, 42523 Port Said, Egypt; Corresponding author at: Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, P.O. Box 34110, Doha, Qatar.

Journal volume & issue: Vol. 119
p. 106811

Abstract

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In this work, we study the electrochemical performance of Nb2CTx and Nb4C3Tx MXenes in the aqueous media and their application as a sensing platform for small biomolecules. Both Nb2CTx and Nb4C3Tx are electrochemically stable up to an anodic potential of 0.5 V. It was found that Nb4C3Tx is more electrochemically active than Nb2CTx. Based on this, Nb4C3Tx was evaluated for the electrochemical detection of aqueous media solutions containing ascorbic acid, uric acid and dopamine. This work opens the door for the wider application of Nb-based MXenes in aqueous electrochemical sensing applications.

Published in Electrochemistry Communications

ISSN: 1388-2481 (Print); 1873-1902 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Technology: Chemical technology: Industrial electrochemistry; Science: Chemistry
Website: https://www.journals.elsevier.com/electrochemistry-communications

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