Electrochemical hydrogen formation catalysed by a Pd₈ string.

Area of Science:

• Inorganic Chemistry
• Materials Science
• Electrochemistry

Background:

• Tetraphosphine-supported palladium complexes are known catalysts.
• Electrocatalytic hydrogen production is crucial for sustainable energy.

Purpose of the Study:

• To synthesize and characterize a novel linear tetrapalladium complex.
• To investigate its efficacy in electrocatalytic hydrogen formation.

Main Methods:

• Reaction of a linear Pd8 complex with tetrafluoroboric acid (HBF4).
• Characterization of the resulting tetrapalladium complex with a terminal hydride.
• Electrocatalytic testing in acetonitrile using a 1D coordination polymer confined within Nafion film.

Main Results:

• An unprecedented linear tetrapalladium complex with a terminal hydride was synthesized.
• The complex effectively promoted electrocatalytic hydrogen formation from HBF4.
• A 1D coordination polymer of the Pd8 chain within Nafion film demonstrated utility in H2 electrocatalysis.

Conclusions:

• The novel tetrapalladium hydride complex is an effective electrocatalyst for hydrogen production.
• Confining the Pd8 chain within Nafion enhances its application in electrocatalytic H2 formation.