Metal-organic framework derived NiMo polyhedron as an efficient hydrogen evolution reaction electrocatalyst

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

  • Author: Karuppasamy, K.

    Dongguk University, Korea, Democratic People's Republic of

  • Author: Jothi, Vasanth Rajendiran

    Hanyang University, Korea, Democratic People's Republic of

  • Author: Vikraman, Dhanasekaran

    Dongguk University, Korea, Democratic People's Republic of

  • Author: Prasanna, K.

    Imaging and Structural Analysis, Department of Energy Conversion and Storage, Technical University of Denmark, Frederiksborgvej 399, 4000, Roskilde, Denmark

  • Author: Maiyalagan, Thandavarayan

    SRM Institute of Science and Technolog, India

  • Author: Sang, Byoung-In

    Hanyang University, Korea, Democratic People's Republic of

  • Author: Yi, Sung-Chul

    Hanyang University, Korea, Democratic People's Republic of

  • Author: Kim, Hyun-Seok

    Dongguk University, Korea, Democratic People's Republic of

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Exploring efficient electrocatalyst for H2 evolution reaction (HER) and replacing the noble metal-based catalysts with inexpensive non-noble metal-based HER catalyst is of great importance for the practicality of hydrogen powered clean technologies. Here, we explore a new class of metal organic framework (MOF) composite (NiMo polyhedron) as an active electrocatalyst material for HER application - synthesized through the conventional hydrothermal process. The bimetallic MOF system having grown on Nickel foam (NiMo/NiMoO4@NC/NF) delivers higher catalytic activity by achieving a current density of 10 mA cm−2 at a low overpotential of 80 mV, with a Tafel slope of 98.9 mV dec−1 (0.5 M H2SO4), comparing favorably with the electrochemical enactment of existing bimetallic MOF-based catalysts. The enhanced HER activity of the synthesized MOF, is primarily due to the structural merits of MOF and the synergy between the MOF and the guest species (Ni and Mo metal atoms). Adding to the excellent HER performance, the electrode also exhibits good stability in acidic medium for a prolonged duration of 24 h. Hence, the synthesized low-cost, non-Pt electrode MOFs with its greater HER performance can be an auspicious applicant as an HER catalyst for water splitting and hydrogen generation applications.
Original languageEnglish
JournalApplied Surface Science
Volume478
Pages (from-to)916-923
ISSN0169-4332
DOIs
Publication statusPublished - 2019
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • HER, Metal organic frame work, Electrocatalyst, Polyhedron

ID: 168928814