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A new stable Pd-Mn3O4 nanocomposite as an efficient electrocatalyst for the hydrogen evolution reaction
Chaiti Ray1, Soumen Dutta, Yuichi Negishi
1Department of Chemistry, Indian Institute of Technology, Kharagpur - 721302, India. tpal@chem.iitkgp.ernet.in.
Abstract:
Herein, a Mn3O4 nanooctahedron (NO) supported Pd nanocomposite has been fabricated from a chosen thermodynamically allowed redox transformation reaction. The synthesized Pd-Mn3O4 (PMO) nanocomposite exhibits outstanding electrocatalytic activity for the hydrogen evolution reaction (HER) in acidic medium with a low overpotential (14 mV), small Tafel slope (42 mV dec(-1)) and high exchange current density (7.74 mA cm(-2)). Moreover, the exceptional durability displayed by PMO on conducting 5000 CV cycles as well as its long-term stability for 36 h (97% activity retention) deserve special attention.
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