Jiao Group


Sustainable fuel/chemical production via photochemical and electrochemical approaches

Fuel and chemical productions from abundant sources, e.g. CO2 and H2O, are ideal approaches towards sustainable and green energy and chemical industries. Solar harvesting through the artificial photosynthetic method is one of the most promising approaches to utilize solar energy at the terawatt scale. In our laboratory, we are combining experimental and computational approaches to explore new chemistry and novel nanostructured catalysts for two key half reactions: water oxidation and CO2 reduction. Our ultimate goal is to couple both reactions in a highly integrated device to produce green fuels/chemicals in a cost-effective and efficient way.

Solar fuel production


(1)   Lu, Q.#, Rosen, J.#, Zhou, Y., Hutchings, G. S., Kimmel, Y. C., Chen, J. G., & Jiao, F.* A selective and efficient electrocatalyst for carbon dioxide reduction. Nature Communications 5:3242 (2014). doi:10.1038/ncomms4242

(2)   Luc, W., Collins, C., Wang, S. W., Xin, H. L., He, K., Kang, Y. J. & Jiao, F.* Ag-Sn bimetallic catalyst with a core-shell structure for CO2 reduction. Journal of the American Chemical Society 139, 1885-1893 (2017). doi:10.1021/jacs.6b10435

(3)   Zhang, Y., Luc, W., Hutchings, G. S. & Jiao, F.* Photoelectrochemical carbon dioxide reduction using a nanoporous Ag cathode. ACS Applied Materials & Interfaces 8, 24652-24658 (2016). doi:10.1021/acsami.6b09095

Nanoporous materials for energy applications

Nanoporous materials, particularly nanoporous metals, are an important group of materials. Such solids can combine open d-shells, high surface area, limited wall thickness and open pore networks, with the result that they exhibit many interesting properties in catalysis, electron transfer, energy conversion and storage, and magnetic devices. We are currently focusing on developing new synthetic methodologies in order to fabricate nanoporous and mesoporous materials that cannot be accessed by traditional approaches. We believe that new materials hold the key to our clean and sustainable energy future.

Mesoporous Fe2O3


(1)   Luc, W., & Jiao, F.* Nanoporous Metals as Electrocatalysts: State-of-the-Art, Opportunities, and Challenges. ACS Catalysis 7, 5856-5861 (2017). doi:10.1021/acscatal.7b01803

(2)   Luc, W. & Jiao, F.* Synthesis of nanoporous metals, oxides, carbides, and sulfides: beyond nanocasting. Accounts of Chemical Research 49, 1351-1358 (2016). doi:10.1021/acs.accounts.6b00109

Process and reactor design for electrochemical systems

Process and reactor design are important topics of chemical engineering because they often dominate the overall performance of electrochemical systems. In our laboratory, we not only perform fundamental research on novel catalysts but also design new reaction process and electrochemical reactors for advanced applications. Recent research efforts include prototype development, process engineering and system integration.

CO2 electrolyzer


(1)   Luc, W., Jouny, M., Rosen, J., & Jiao, F.* Carbon Dioxide Splitting using an Electro-Thermochemical Hybrid Looping Strategy. Energy & Environmental Science 11, 2928-2934 (2018). doi:10.1039/C8EE00532J

(2)   Sriramagiri, G. M., Ahmed, N., Luc, W., Dobson, K. D., Hegedus, S. S., & Jiao, F.* Toward a Practical Solar-Driven CO2 Flow Cell Electrolyzer: Design and Optimization. ACS Sustainable Chemistry & Engineering 5, 10959-10966 (2017). doi:10.1021/acssuschemeng.7b02853

(3)   Lu, Q., & Jiao, F.* Electrochemical CO2 reduction: electrocatalyst, reaction mechanism, and process engineering. Nano Energy 29, 439-456 (2016). doi: 10.1016/j.nanoen.2016.04.009

In-situ and Operando structural characterizations

Heterogeneous catalysis at the solid/liquid/vapor interface plays an important role in many energy applications, and the ability to observe dynamic structural changes of working catalysts under reaction conditions is invaluable. Such information provides important insights for us to understand key promotion and poisoning phenomena, and allows for tailoring the design of next-generation catalysts. X-ray absorption spectroscopy and Infrared spectroscopy are powerful tools to probe local chemical environment and oxidation state of catalyst under working conditions.

In Situ XAS Figures


(1)   Hutchings, G. S., Rosen, J., Smiley, D. L., Goward, G. R., Bruce, P. G., & Jiao, F.* Environmental In Situ X-ray Absorption Spectroscopy Evaluation of Electrode Materials for Rechargeable Lithium-Oxygen Batteries. Journal of Physical Chemistry C 118, 12617-12624 (2014). doi:10.1021/jp5017399

(2)   Rosen, J., Hutchings, G. S., Lu, Q., Forest, R. V., Moore, A., & Jiao, F.* Electrodeposited Zn dendrites with enhanced CO selectivity for electrocatalytic CO2 reduction. ACS Catalysis 5, 4586-4591 (2015). doi:10.1021/acscatal.5b00922

(3)   Dunwell, M., Lu, Q., Heyes, J. M., Rosen, J., Chen, J. G., Yan, Y. S.*, Jiao, F.* & Xu B. J.* The Central Role of Bicarbonate in the Electrochemical Reduction of Carbon Dioxide on Gold. Journal of the American Chemical Society 139, 3774-3783 (2017). doi:10.1021/jacs.6b13287


The major equipment in the Jiao group includes:

  • Hansatech Clark Electrode system with oxygen detector (OXYGRAPH, PP SYSTEM)
  • Gas chromatograph (Shimadzu)
  • Xe & Hg(Xe) research source lamp (UV Fused Silica, 1.3in Collimated, F/1, 1.5 Inch) with different wavelength filters
  • Photocatalytic reactors equipped with a quartz window
  • Two-chamber electrochemical cells
  • MACCOR battery testing system
  • MBRAUN gloveboxes with solvent trap system
  • High energy ball milling machine (SPEX 8000M-115)
  • FTIR spectrometer with gas cell and standard KBr cell (ALPHA, Bruker)
  • Electrode thin film coating system (MTI)
  • Vacuum oven (MTI)
  • Coin cell crimping machine (MTI)
  • Precision Disc Cutter (MTI)
  • Potentiostats (Autolab & Princeton Applied Research)
  • Mass flow meters (MKS)
  • Tube furnace (MTI)