The goal of Subtask 5 "Functional Nanostructured Transparent Electrode Materials" is to develop transparent (semi)conducting nanoporous metal oxide electrodes to host catalysts and reaction centers.

Researchers of this subtask strive to develop high surface area electrodes that can bind and functionally integrate the artificial reaction center, water oxidation catalyst and proton reduction catalyst while maintaining transparency, high electrical conductivity, specifically-tuned semiconductor properties, chemical inertness, and physical robustness. Meeting these requirements necessitates new adaptive materials based on nanostructured metal oxides and other inorganic materials suitable for eventual inexpensive, large-scale fabrication.

People working on Subtask 5

Sudhanshu Sharma
Postdoctoral Fellow
Kiwan Jeon
Graduate student
Don Seo
Principal Investigator
Subtask 5 Leader
Dinesh Medpelli
Graduate student
Danielle Ladd
Graduate student
Daniel Mieritz
Graduate student
Barun Das
Postdoctoral Fellow
Alex Volosin
Graduate student

Major projects of Subtask 5

  1. Mesoporous antimony tin oxide conducting electrodes
  2. Semiconducting electrodes to host proton reduction systems
  3. Semiconducting electrodes to host water oxidation systems

Research news on Subtask 5

22 Jun 2011

A group of Center for Bio-inspired Solar Fuel Production researchers collaborating on Subtask 2 (Water oxidation catalyst) and Subtask 5 (Functional nanostructured transparent electrode materials) have found that transparent and conducting antimony tin oxide with controlled pore size incorporates DNA nanocages with high affinity and without damage. Results of the study have been published in  the June 2011 issue of ACS Nano. The study has brought the Center scientists a bit closer to a design of a transparent nanostructured electrode with entrapped functional water oxidation catalysts.

Recent papers on Subtask 5

  1. Jeon, K.-W. and Seo, D.-K. (2014) Concomitant thionation and reduction of graphene oxide through solid/gas metathetical sulfidation reactions at high temperatures, Phosphorus, Sulfur, and Silicon and the Related Elements, Published online Mar 3, 2014, (Read online)"
  2. Medpelli, D., Seo, J.-M., and Seo, D.-K. (2014) Geopolymer with hierarchically meso-/macroporous structures from reactive emulsion templating, J. Amer. Ceram. Soc., 97 (1), 70-73 (Read online)"
  3. Sharma, S., Volosin, A.M., Schmitt, D., Seo, D.-K. (2013) Preparation and Electrochemical Properties of Nanoporous Transparent Antimony-Doped Tin Oxide (ATO) Coatings, Journal of Materials Chemistry A, 1, 699 - 706 (Read online)"
  4. Kwan, P., Schmitt, D., Volosin, A. M., McIntosh, C. L., Seo, D.-K., and Jones, A. K. (2011) Spectroelectrochemistry of cytochrome c and azurin immobilized in nanoporous antimony-doped tin oxide, Chemical Communications, 47, 12367-12369 (Read online)"
  5. Volosin, A.M., Sharma, S., Traverse, C., Newman, N., and Seo, D-K. (2011) One-pot synthesis of highly mesoporous antimony-doped tin oxide from interpenetrating inorganic/organic networks, Journal of Materials Chemistry, 21, 13232-13240 (Read online)"
  6. Simmons, C. R., Schmitt, D., Wei, X., Han, D., Volosin, A. M., Ladd, D. M., Seo, D.-K., Liu, Y., and Yan, H. (2011) Size-Selective Incorporation of DNA Nanocages into Nanoporous Antimony-Doped Tin Oxide Materials, ACS Nano, 5, 6060-6068 (Read online)"
  7. Hörtz, C., Ladd, D. M., and Seo, D.-K. (2011) Preparation of Nanoporous MgAl2O4 by Combined Utilization of Sol-Gel Process and Combustion of Biorenewable Oil, MRS Proceedings, 1306, mrsf10-1306-bb1309-1303 (Read online)"
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