Photoelectrochemical Generation of Hydrogen from Water Using a CdSe Quantum Dot-Sensitized Photocathode
journal contributionposted on 03.04.2015, 00:00 by T. Purnima A. Ruberu, Yuming Dong, Amit Das, Richard Eisenberg
The present study reports photelectrochemical H2 evolution using a water-solubilized S3-cap-CdSe quantum dot-sensitized NiO as the photocathode and either [Co(bdt)2]− (bdt =1,2-benzenedithiolate) or Ni(DHLA)x (DHLA= the anion of dihydrolipoic acid) complex as the H2-forming catalyst. The NiO-S3-cap-CdSe/[Co(bdt)2]− system produces H2 with a turnover frequency of 3000 per CdSe mol·h. Faradaic efficiency for this system is essentially quantitative. Both systems are stable for more than 16 h.