Conference Programme

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Overview
Session
L2-05: Symp L
Time:
Tuesday, 20/Jun/2017:
4:00pm - 6:15pm

Session Chair: Martin Hartmann, Universitaet Erlangen-Nuernberg
Location: Rm 310

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Presentations
4:00pm - 4:30pm
Keynote

Functional Nanoporous Materials for Energy and Environment

Ajayan VINU

UNIVERSITY OF SOUTH AUSTRALIA, Australia

Nanoporous materials have received enormous attention in recent years because of their remarkable properties such as high specific surface areas, large specific pore volumes, chemical inertness, and good chemical and mechanical stability, which lend them to potential applications. The incorporation of hetero atoms such as boron and nitrogen in these nanoporous materials can further offer the electronic and semi-conducting properties. In this talk, I will present the preparation, structural and morphological control, and the functionalization of highly ordered and graphitic nanoporous carbon and nitrides with tunable pore diameters and textural features [1-6]. The relation between the structural parameters and the performance of these materials in various applications including catalysis, sensing and energy storage will be demonstrated [6-10]. In the second part of the talk, the fabrication of various nanoporous films including carbons, nitrides, semiconducting nanostructures, and biomolecules with tunable macroporosity, thickness, and morphology will be presented. These porous films have been fabricated by using P123 block copolymer and polystyrene spheres as templates, and utilized for sensing. For example, nanoporous CN film offers the superior affinities for toxic acid molecules but the selectivity can be totally reversed for basic molecule after treatment with UV. This novel highly ordered film with photo-switch functions can offer new possibilities for the development of sensing systems for toxic molecules [11,13].

  1. Kripal S. Lakhi, Dae-Hwan Park, Khalid Al-Bahily, Wang Soo Cha, Balasubramanian Viswanathan, Jin-Ho Choy and A. Vinu, Chem. Soc. Rev. 2017, 46, 72.
  2. A. Vinu, Adv. Func. Mater.2008, 18, 816.
  3. J. Kim, B. Kim, C. Anand, A. Mano, J.S.M. Zaidi, K. Ariga, J. You, E. Kim, A. Vinu, Angew. Chem. Intl. Ed. 2015, 127, 8527-8530.
  4. X. Jin, V.V. Balasubramanian, S.T Selvan, D.P. Sawant, G. Q. Lu, A. Vinu, Angew. Chem. Intl. Ed. 2009, 48, 7884.
  5. K. Ariga, A. Vinu, M. Miyahara, J.P. Hill, T. Mori, J. Am. Chem. Soc. 2007, 129, 11022.
  6. K. Ariga, A. Vinu, Q. Ji, O. Ohmori, J.P. Hill, S. Acharya, J. Koike, S. Shiratori, Angew. Chem. Intl. Ed. 2008, 47, 7254.
  7. Qingmin Ji, Itaru Honma, Seung-Min Paek, Jonathan P. Hill, A. Vinu, K. Ariga, Angew. Chem. Intl. Ed. 2010, 49, 9737-9739.
  8. S. Alam, C. Anand, K. Ariga, T. Mori, A. Vinu, Angew. Chem. Intl. Ed. 2009, 48, 7358.
  9. K.K.R. Datta, B.V. Subba Reddy, K. Ariga, A. Vinu, Angew. Chem. Intl. Ed. 2010, 49, 5961-5965.
  10. J. Kim, C. Anand, S. N. Talapaneni, J. You, S.S. Aldeyab, E. Kim, A. Vinu, Angew. Chem. Intl. Ed. 2012, 51, 2859.
  11. L. Jia, H. Wang, D. Dhawale, C. Anand, M. A. Wahab, Q. Ji, K. Ariga, A. Vinu, Chem. Commun. 2014, 50, 5976.
  12. L. Zhong, A. Chokkalingam, K. Lakhi, G. Lawrence, A. Vinu, Nature Scientific Reports, 2015, 5, 12901.
  13. Gurudas P. Mane, Siddulu N. Talapaneni, Kripal S. Lakhi, Hamid Ilbeygi, Ugo Ravon, Khalid Al-Bahily, Toshiyuki Mori, Dae-Hwan Park, and A. Vinu*, Angew. Chemie International Edition, 2017, In press (Very Important Paper).

4:30pm - 5:00pm
Invited

2D Nanosheets of Layered Metal Oxides, Hydroxides, and Chalcogenides: Tailorable Powerful Precursors for 3D Functional Nanohybrids

Seong-Ju HWANG

EWHA Womans University, South Korea

The diverse exfoliated 2D nanosheets of inorganic solids such as layered metal oxides and layered double hydroxides attract intense research interest because of their unique physicochemical properties and useful functionalities. The 2D nanosheets of inorganic solids and graphene can be synthesized by soft-chemical exfoliation reaction and used as efficient building blocks for heterostructured nanohybrids, porous nanocomposites, multilayered films, freestanding hybrid films, etc. The resulting 3D hybrid materials possess diverse promising applicabilities for energy and environmental technologies. In this talk, several practical examples of the 2D inorganic/graphene nanosheets will be presented together with their self-assembled nanohybrids having tailorable physicochemical properties and functionalities such as electrode activity, photocatalytic activity, redox catalytic activity, electrocatalytic activity, gas adsorption capability, and nanobio application.


5:00pm - 5:30pm
Invited

Mesoporous Carbon Nitrides with a High Nitrogen Content for Catalytic Applications

Siddulu Naidu TALAPANENI, Ajayan VINU

University of South Australia, Australia

Mesoporous Carbon nitrides (MCN) have received enormous attention in recent years because of their remarkable and fascinating textural properties such as high specific surface areas, large pore volumes, tunable pore diameters and multi dimensionalities. In addition, MCN possess very unique physical and chemical properties including semiconductivity, basicity, high hardness, chemical inertness, and high chemical, thermal and mechanical stability, which lend them to potential applications. The incorporation of nitrogen in the carbon matrix of carbon nitride (CN) not only offers a unique electronic structure with a semiconducting band gap of less than 2.7 eV but also helps to enhance their field emission, photo and basic catalytic, carbon capture, and energy storage properties. In this talk, I will present the preparation, structural and morphological control, and the functionalization of highly ordered MCN with different nitrogen contents, tunable pore diameters and textural features. These MCN have been realized through the nanotemplating approach by using the self-condensation followed by polymerization reaction from mixture and single molecular precursors such as carbontetrachloride/ethylenediamine, aminoguanidine hydrochloride and mesoporous silica materials namely SBA-15 and KIT-6 with 2D and 3D mesoporous features having various pore diameters synthesized at different temperatures as sacrificial hard templates. Further, the control of the pore size and dimensionalities of MCN will be demonstrated. MCN with tuneable structure and pore diameter allow us to tune the textural parameters and adsorption properties of MCN. As the MCN materials possess huge specific surface area and rich base amine functionalities on their surfaces, MCN showed excellent performance towards the base catalyzed organic transformations of Knoevenagel condensation and Friedel Crafts acylation reactions with approximately 90% reactant conversion and 100% desired product selectivity in short span of time. The relation between the structural features, textural parameters, and the performance of MCN in heterogeneous catalysis will be demonstrated.



 
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