Towards supramolecular chemistry with inorganic 2D nanomaterial building blocks

• Applicant: Professorin Dr. Claudia Backes
• Subject Area: Physical Chemistry of Molecules, Liquids and Interfaces, Biophysical Chemistry
• Term: from 2016 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 286918789

• Final Report Year: 2022

Final Report Abstract

In summary, the first phase of the Emmy Noether project “Towards supramolecular chemistry with inorganic 2D-nanomaterial building blocks” was focused on developing strategies to chemically dope liquid phase exfoliated layered materials through noncovalent interactions with various molecules and polymers. It could be demonstrated that the overall project idea is indeed a feasible approach. During the course of the project, a number of other aspects evolved that could not have been anticipated by the time the research was proposed. To be able to pursue these timely subjects, part of the planned research was redirected. The majority of the projects were highly collaborative bringing together the expertise of various groups (from chemical synthesis to theoretical physics). Our team now pursues research aspects that evolved during the Emmy Noether funding such as defect functionalisation and degradation, fabrication of heterostructures from liquid-liquid interface assembly, exfoliation of exotic materials including organic molecular crystals, selective destruction of small nanosheets, as well as further understanding the mechanism of LPE and size selection.

Publications

• Production of monolayer-rich gold-decorated 2H–WS2 nanosheets by defect engineering. NPJ 2D Materials and Applications (2018), 1, 43
  Dunklin, Jeremy R.; Lafargue, Paul; Higgins, Thomas M.; Forcherio, Gregory T.; Benamara, Mourad; McEvoy, Niall; Roper, D. Keith; Coleman, Jonathan N.; Vaynzof, Yana & Backes, Claudia
  
• Equipartition of energy defines the size-thickness relationship in liquid-exfoliated nanosheets. ACS Nano (2019), 13, 7050-7061
  Backes, Claudia; Campi, Davide; Szydlowska, Beata M.; Synnatschke, Kevin; Ojala, Ezgi; Rashvand, Farnia; Harvey, Andrew; Griffin, Aideen; Sofer, Zdenek; Marzari, Nicola; Coleman, Jonathan N. & O’Regan, David D.
  
• Impact of the MoS2 starting material on the dispersion quality and quantity after liquid phase exfoliation. Chemistry of Materials (2019), 31, 20, 8424-8431
  Ott, Steffen; Wolff, Nadja; Rashvand, Farnia; Rao, Vaishnavi J.; Zaumseil, Jana & Backes, Claudia
  
• Length and thickness dependent optical response of liquid-exfoliated transition metal dichalcogenides. Chemistry of Materials (2019), 24, 10049-10062
  Synnatschke, Kevin; Cieslik, Patrick Arthur; Harvey, Andrew; Castellanos-Gomez, Andres; Tian, Tian; Shih, Chih-Jen; Chernikov, Alexey; Santos, Elton J. G.; Coleman, Jonathan N. & Backes, Claudia
  
• Liquid exfoliation of Ni2P2S6: Structural characterisation, size-dependent properties and degradation. Chemistry of Materials (2019), 31, 9127-9139
  Synnatschke, Kevin; Shao, Shouqi; van Dinter, Jonas; Hofstetter, Yvonne J.; Kelly, Daniel James; Grieger, Sebastian; Haigh, Sarah J.; Vaynzof, Yana; Bensch, Wolfgang & Backes, Claudia
  
• Enriching and quantifying porous single layer 2D polymers by exfoliation of chemically modified van der Waals crystals. Angewandte Chemie Int. Ed. (2020), 59, 5683-5695
  Lange, Ralph Z.; Synnatschke, Kevin; Qi, Haoyuan; Huber, Niklas; Hofer, Gregor; Liang, Baokun; Huck, Christian; Pucci, Annemarie; Kaiser, Ute; Backes, Claudia & Schlüter, A. Dieter
  
• Green Synthesis and Exfoliation of a New Layered Mesoporous Zr-MOF Comprising Hexaand Dodecanuclear Clusters as well as a Small Organic Linker Molecule. Journal of the American Chemical Society (2020), 142, 15995-16000
  Leubner, Sebastian; Bengtsson, Viktor E. G.; Synnatschke, Kevin; Gosch, Jonas; Koch, Alexander; Reinsch, Helge; Xu, Hongyi; Backes, Claudia; Zou, Xiaodong & Stock, Norbert
  
• Shielding the basal plane of monolayered liquid-exfoliated WS2 from oxidation through adsorption of a facial amphiphile. Angewandte Chemie Int. Ed. (2020), 59, 13785-13792
  Grieger, Sebastian; Szydłowska, Beata M.; Rao, Vaishnavi J.; Steinmann, Eva; Dodds, Marcus; Gholamvand, Zahra; Duesberg, Georg S.; Zaumseil, Jana & Backes, Claudia
  
• Liquid Phase Exfoliation of Rubrene Single Crystals into Nanorods and Nanobelts. ACS Nano (2021), 15, 20466–20477
  Rao, Vaishnavi J.; Qi, Haoyuan; Berger, Felix J.; Grieger, Sebastian; Kaiser, Ute; Backes, Claudia & Zaumseil, Jana
  
• The role of additives in suppressing the degradation of liquid-exfoliated WS2 monolayers. Advanced Materials (2021), 33, 2102883
  Karger, Leonhard; Synnatschke, Kevin; Settele, Simon; Hofstetter, Yvonne J.; Nowack, Tim; Zaumseil, Jana; Vaynzof, Yana & Backes, Claudia