Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5421955 | Surface Science | 2015 | 5 Pages |
Abstract
In this work we describe an electrografting procedure for the preparation of pyridine-functionalized Si(111) surfaces, and we demonstrate that this modified surface reduces the overpotential for the hydrogen evolution reaction by about 400Â mV compared to the H-terminated Si surface. Thus, evidence is presented that the functionalized Si surface has a catalytic activity for an inner sphere electrochemical reaction and might be an attractive alternative to metal or metal oxide cluster-covered semiconductors in photoelectrochemical devices converting solar energy into chemical energy.
Related Topics
Physical Sciences and Engineering
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Physical and Theoretical Chemistry
Authors
Qi Li, Konrad Schönleber, Patrick Zeller, Ignaz Höhlein, Bernhard Rieger, Joost Wintterlin, Katharina Krischer,