JIANG Donglin

JIANG Donglin

Professor, Provost’s Chair Professor (2022-2025)

Postdoctoral, The University of Tokyo; Ph.D, The University of Tokyo.

Contact Information:

Office: MD1-17-03E

Tel: (65)-6516-5855

Fax: (65)-6779-1691

Email: chmjd@nus.edu.sg


Research

ORCID: 0000-0002-3785

ResearcherID: E-6696-2017

 

Recognition and Achievements

 

Research Interests

 

Research Highlight

Photocatalysts are crucial to diverse applications, but a challenge is the simultaneous and efficient delivery of photogenerated charges and mass to the catalytic sites. Now, through the systematic design of the skeletons and pores, covalent organic frameworks (COFs) are developed for the efficient photosynthesis of hydrogen peroxide (H2O2) using only water, air and light. We have constructed hexavalent π electronic frameworks for highly efficient photosynthesis via systematic design of both skeletons and pores. The π skeletons are designed as 2D electron donor-alt-acceptor networks, which upon irradiation are converted into catalytic scaffolds with dense oxygen reduction and water oxidation sites, while spatially segregated π columns separate holes and electrons to prevent charge recombination and enable quick charge transport to the catalytic sites. The pore walls are precisely engineered with hydrophilic chains to empower instant delivery of water and dissolved oxygen via capillary effect to cross the 1D microchannels. The resultant frameworks enable efficient photosynthesis of H2O2 with only use of water, air and light, attaining an optimal apparent quantum yield of 18.0% and solar-to-chemical conversion efficiency of 0.91% in bath reactors. Upon fabrication into flow reactors, they continuously produce pure H2O2 solution under ambient conditions and underpins exceptional operation stability. Our system amalgamates a set of desired features of activity, stability and scalability for artificial photosynthesis (Nat. Catal. 2024, 7, 195–206; Nat. Synth. 2024, 3, 998–1010).

 

Teaching Contributions AY2024/2025 

 

Representative Publications   

  • Deng, L.; Chen, W.; Zhou, G.; Liu, Y.; Liu, L.; Han, Y.; Huang, Z.; Jiang, D. Synthesis of Single-Crystal Two-Dimensional covalent organic frameworks and uncovering their hidden structural features by Three-Dimensional electron diffraction. J. Am. Chem. Soc. 2024, https://doi.org/10.1021/jacs.4c14535.
  • Xie, S.; Liu, R.; Liu, N.; Xu, H.; Chen, X.; Wang, X.; Jiang, D. Vertically Expanded Covalent Organic Frameworks for Photocatalytic Water Oxidation into Oxygen. Angew. Chem. Int. Ed. 2024, https://doi.org/10.1002/anie.202416771.
  • Xie, S.; Addicoat, M. A.; Jiang, D. Vertically expanded crystalline porous covalent organic frameworks. J. Am. Chem. Soc. 2024, 146, 32640–32650. https://doi.org/10.1021/jacs.4c11880.
  • Chen, Y.; Jiang, D. Photocatalysis with Covalent Organic Frameworks. Acc. Chem. Res. 2024, 57, 3182–3193. https://doi.org/10.1021/acs.accounts.4c00517.
  • Mu, X.; Xie, S.; Ye, X.; Tao, S.; Li, J.; Jiang, D. Ketazine-Linked crystalline porous covalent organic frameworks. J. Am. Chem. Soc. 2024, 146, 25118–25124, https://doi.org/10.1021/jacs.4c08231.
  • Yin, C.; Ye, X.; Tao, S.; Zhao, D.; Zhi, Y.; Jiang, D. Helicene covalent organic frameworks for robust light harvesting and efficient energy transfers. Angew. Chem. Int. Ed. 2024, 63, https://doi.org/10.1002/anie.202411558.
  • Gong, Y.; Deng, L.; Xu, X.; Liu, R.; Li, J.; Huang, N.; Jiang, D. Wiring Covalent Organic Frameworks with Conducting Polymers. Angew. Chem. Int. Ed. 2024, 63, https://doi.org/10.1002/anie.202411806.
  • Tao, S.; Jiang, D. Exceptional anhydrous proton conduction in covalent organic frameworks. J. Am. Chem. Soc. 2024, 146, 18151–18160. https://doi.org/10.1021/jacs.4c06049.
  • Tao, S.; Jiang, D. Accelerating anhydrous proton transport in covalent organic frameworks: Pore Chemistry and its Impacts. Angew. Chem. Int. Ed. 2024, 63, https://doi.org/10.1002/anie.202408296.
  • Chen, Y.; Jiang, D., Molecular design of covalent organic framework photocatalysts. Nat. Synth. 20243, 939–940, https://doi.org/10.1038/s44160-024-00541-5.