Bifunctional Behavior of Pd/Ni Nanocatalysts on MOF‐Derived Carbons for Alkaline Water‐splitting | Zendy

Ipadeola Adewale K. | Zendy; Mwonga Patrick V. | Zendy; Ray Sekar C. | Zendy; Maphanga Rapela R. | Zendy; Ozoemena Kenneth I. | Zendy

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Bifunctional Behavior of Pd/Ni Nanocatalysts on MOF‐Derived Carbons for Alkaline Water‐splitting

Author(s) -

Ipadeola Adewale K.,

Mwonga Patrick V.,

Ray Sekar C.,

Maphanga Rapela R.,

Ozoemena Kenneth I.

Publication year - 2020

Publication title -

electroanalysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 128

eISSN - 1521-4109

pISSN - 1040-0397

DOI - 10.1002/elan.202060427

Subject(s) - bifunctional , nanomaterial based catalyst , oxygen evolution , water splitting , nickel , catalysis , materials science , inorganic chemistry , metal organic framework , hydrogen , chemical engineering , adsorption , metal , chemistry , electrochemistry , metallurgy , electrode , organic chemistry , photocatalysis , engineering

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.

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