ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Integration of Marigold 3D flower-like Ni-MOF self-assembled on MWCNTs via microwave irradiation for high-performance electrocatalytic alcohol oxidation and oxygen evolution reactions

Sreekanth, TVM and Dillip, GR and Nagajyothi, PC and Yoo, K and Kim, J (2021) Integration of Marigold 3D flower-like Ni-MOF self-assembled on MWCNTs via microwave irradiation for high-performance electrocatalytic alcohol oxidation and oxygen evolution reactions. In: Applied Catalysis B: Environmental, 285 .

[img] PDF
app_cat_env_285_2021 - Published Version
Restricted to Registered users only

Download (8MB) | Request a copy
Official URL: https://doi.org/10.1016/j.apcatb.2020.119793

Abstract

Fabrication of metal-organic frameworks (MOFs) on carbon nanostructure arrays is extremely challenging. Here, we successfully fabricated three-dimensional (3D) flower-like Ni-MOFs on multiwalled carbon nanotubes (MWCNTs) through a highly efficient and rapid microwave synthetic protocol and studied their applicability in electrocatalytic alcohol oxidation reaction (AOR) and oxygen evolution reaction (OER). Morphological studies using scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM) images suggested the formation of marigold-like Ni-MOF decorated on the MWCNTs. Surface coverage of Ni-MOF@CNT (1.11 � 10�7 mol g-1) was higher than that of the pristine Ni-MOF (9.35 � 10-8 mol g-1) electrocatalyst. The higher electrochemical active surface area (ECSA) of Ni-MOF@CNT (494.3 cm2) compared to the pristine Ni-MOF (203.5 cm2) electrocatalyst resulted in the availability of large active sites in the Ni-MOF@CNT to catalyze AOR and OER. Ni-MOF@CNT exhibited a higher electrooxidation performance in AOR than the pristine Ni-MOF and its OER activity was far superior. © 2020

Item Type: Journal Article
Publication: Applied Catalysis B: Environmental
Publisher: Elsevier B.V.
Additional Information: The copyright for this article belongs to Elsevier B.V.
Keywords: Electrocatalysts; Electrooxidation; High resolution transmission electron microscopy; Metal-Organic Frameworks; Microwave irradiation; Multiwalled carbon nanotubes (MWCN); Organometallics; Oxygen; Oxygen evolution reaction; Scanning electron microscopy, Carbon Nanostructures; Electrochemical active surface areas; Metalorganic frameworks (MOFs); Morphological study; Multiwalled carbon nanotube (MWCNTs); Oxygen evolution reaction (oer); Synthetic protocols; Threedimensional (3-d), Nickel metallography
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 31 Dec 2021 05:57
Last Modified: 31 Dec 2021 05:57
URI: http://eprints.iisc.ac.in/id/eprint/67670

Actions (login required)

View Item View Item