Graphdiyne-Supported NiFe Layered Double Hydroxide Nanosheets as Functional Electrocatalysts for Oxygen Evolution.

ACS Appl Mater Interfaces

Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry , Nankai University, Tianjin 300071 , P. R. China.

Published: January 2019

AI Article Synopsis

  • Graphdiyne (GDY) is a unique two-dimensional carbon material known for its sp and sp-hybridized carbon structure, which contributes to its superior electronic properties and stability.
  • Researchers successfully created a GDY-supported NiFe layered double hydroxide (LDH) composite that enhances surface area and conductivity, leading to impressive catalytic performance with a low overpotential of 260 mV for oxygen evolution.
  • The GDY@NiFe composite demonstrates excellent durability in alkaline conditions, highlighting its potential as an effective electrocatalyst for oxygen evolution reactions and paving the way for future advancements in graphdiyne-supported materials.

Article Abstract

Graphdiyne (GDY), a novel two-dimensional full-carbon material, has attracted lots of attention because of its high conjugated system comprising sp and sp-hybridized carbons. The distinctive structure characteristics endow it unique electronic structure, uniform distributed pores and excellent chemical stability. A novel GDY-supported NiFe layered double hydroxide (LDH) composite was successfully prepared for the first time. By taking advantage of the increased surface active areas and improved conductivity, the designed hierarchical GDY@NiFe composite exhibits outstanding catalytic activity that only required a small overpotential about 260 mV to achieve the current density of 10 mA cm. The nanocomposite shows excellent durability in alkaline medium implying a superior OER electrocatalytic activity. It is anticipated that the as-prepared GDY@NiFe composite electrocatalyst provide new insights in designing graphdiyne-supported electrocatalyst materials for oxygen evolution application.

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http://dx.doi.org/10.1021/acsami.8b03345DOI Listing

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