Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 6, Issue 24, Pages 4916-4922Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.5b02419
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- ERC-Adv grant
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We show that in an electrochemical cell, in which the photoanode is coated with chiral molecules, the overpotential required for hydrogen production drops remarkably, as compared with cells containing achiral molecules. The hydrogen evolution efficiency is studied comparing seven different organic molecules, three chiral and four achiral. We propose that the spin specificity of electrons transferred through chiral molecules is the origin of a more efficient oxidation process in which oxygen is formed in its triplet ground state. The new observations are consistent with recent theoretical works pointing to the importance of spin alignment in the water-splitting process.
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