Bifunctional Behavior of Pd/Ni Nanocatalysts on MOF‐Derived Carbons for Alkaline Water‐splitting. Issue 12 (3rd November 2020)

• Record Type: Journal Article
• Authors: Ipadeola, Adewale K.; Mwonga, Patrick V.; Ray, Sekar C.; Maphanga, Rapela R.; Ozoemena, Kenneth I.
• Is Part Of: Electroanalysis. Volume 32:Issue 12(2020)
• Page Start: 3060
• Page End: 3074
• Publication Date: 2020-11-03
• Subjects: Pd/Ni/MOFDC electrocatalyst -- Alkaline water-splitting -- Kinetic current -- Activation energy, Density functional theory; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.202060427
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: Metal‐organic framework derived carbon (MOFDC) serves as supporting platforms for PdNi catalyst (Pd/Ni/MOFDC) and acid‐treated nickel counterpart (Pd/AT‐Ni/MOFDC). The two Pd‐based electrocatalysts are tested for alkaline water‐splitting (i. e., hydrogen evolution (HER) and oxygen evolution reactions (OER)). The results reveal better HER and OER kinetics for Pd/Ni/MOFDC than Pd/AT‐Ni/MOFDC. DFT calculations show that the high performance of the Pd/Ni/MOFDC can be associated with its high conductivity toward adsorbed OH compared to the Pd/AT‐Ni/MOFDC counterpart. The superior overall water‐splitting of Pd/Ni/MOFDC describes the synergy between Ni/Ni(OH)2 interface and nanostructured Pd for possible future application in an electrolyzer. Abstract :