신소재공학과

Seminar

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Date 20180313

MSE Regular Seminar



■ Title Dimensional Organic Networks for Energy Conversion and Storage


■ Speaker : Prof. Jong-Beom Baek (School of Energy and Chemical Engineering, UNIST)

  

■ Date and Time : 13th of March, 2018 (Tue) 16:00

 

■ Venue : Applied Engineering Department (W1-1) Multimedia Lecture Hall (1st Floor)

 

 Host :  Prof. Sang Ouk Kim

  

 Abstract :  

Since the discovery of graphene in 2004,1 conjugated two-dimensional (2D) organic networks have attracted immense interest due to their unusual electronic, optoelectronic, magnetic and electrocatalytic properties. In addition, their tunable structures and properties promise to offer more opportunities than graphene in various applications. However, even after years of intensive exploration of 2D materials in science and technology, facile and scalable methods capable of producing stable 2D networks with uniformly decorated heteroatoms with/without holes remain limited. To overcome these issues, new layered 2D organic networks have been designed and synthesized. They have uniformly distributed heteroatoms,2 holes with heteroatoms3 and transition metal nanoparticles in the holes.4 The structures were confirmed by scanning tunneling microscopy (STM). Based on the stoichiometry of the basal plane, they were, respectively, designated C3N, C2N and M@C2N (M = Co, Ni, Pd, Pt, Ru). Their electronic and electrical properties were evaluated by electrooptical and electrochemical measurements along with density-functional theory (DFT) calculations. Furthermore, robust three-dimensional (3D) cage-like organic networks have also been constructed and they show high sorption properties.5,6 The results suggest that these newly-developed 2D and 3D organic networks offer greater opportunities, from wet-chemistry to device applications.  

 

References:

[1] Novoselov, et al. Electric field effect in atomically thin carbon film. Science 2004, 306, 666.

[2] Mahmood, et al. Two-dimensional polyaniline (C3N) from carbonized organic single crystals. Proceedings of National Academy of Sciences, USA 2016, 113, 7414.

[3] Mahmood, et al. Nitrogenated holey two-dimensional structure. Nature Communications 2015, 6, 6486.

[4] Mahmood, et al. An efficient and pH-universal ruthenium-based catalyst for the hydrogen evolution reaction. Nature Nanotechnology 2017, 12, 441.

[5] Bae, et al. Forming a three dimensional porous organic network via explosion of organic single crystals in solid-stateNature Communications 2017, 8, 159-Highlighted in Nature Nanotechnology 2018, 13, 4.9.

[6] Mahmood, et al. A robust 3D cage-like ultramicroporous network structure with high gas uptahe capacities. Angewandte Chemie International Edition 2018, DOI: 10.1002/ange.201800218.


List of Articles
No. Category Subject Author Date Views
Notice Regular 6/4 (Tue) Prof. SangBum Kim (Dept. of MSE, SNU) ADMINI 2019.05.31 477
Notice Regular 5/28 (Tue) Prof. Seok Su Sohn (Dept. of MSE, Korea Univ.) ADMINI 2019.05.24 446
Notice Regular 5/21 (Tue) Emeritus Prof. Joong Keun Park (Dept. of MSE, KAIST) ADMINI 2019.05.17 454
Notice Regular 5/17 (Tue) Prof. Su-Hyun Gong (Dept. of Physics, Korea Univ.) ADMINI 2019.05.10 950
Notice Special 5/7 (Tue) Prof. Dr. -ing. Dierk Raabe (MPIE) ADMINI 2019.04.30 763
Notice Regular 4/30 (Tue) Prof. Min Hyuk Park (School of MSE, Pusan National Univ.) ADMINI 2019.04.25 547
Notice Regular 4/23 (Tue) Prof. Seungwu Han (Dept. of MSE, SNU) ADMINI 2019.04.19 308
258 Regular 4/10 (Tue) Prof. Ki Jun, Yu (Yonsei Univ., School of Electrical and Electronic Engineering) ADMINI 2018.04.09 870
257 Regular 4/3 (Tue) Master Byung-Gi Choi (Samsung Advanced Institute of Technology) ADMINI 2018.04.02 721
256 Regular 3/27 (Tue) Prof. Seungbum Hong (KAIST MSE) ADMINI 2018.03.26 665
255 Regular 3/20 (Tue) Prof. Jung In-Ho (Seoul National University, MSE) ADMINI 2018.03.20 597
» Regular 3/13 (Tue) Prof. Jong-Beom Baek (School of Energy and Chemical Engineering, UNIST) ADMINI 2018.03.13 555
253 Regular 3/6 (Tue) Prof. Seok-Young Ryu (KAIST CS) ADMINI 2018.03.05 449
252 Regular 2/27 (Tue) Dr. Jin-Woo Han (NASA) ADMINI 2018.02.27 530
251 Special 2/20 (Tue) Dr. Jae Beom Jang (Sungkyunkwan Univ) ADMINI 2018.02.19 502
250 Special 2/8 (Thu) Prof. Pei-Chen Su (Nanyang Technological University) file ADMINI 2018.02.05 548
249 Special 2/13 (Tue) Prof. Sungkyu Kim (Northwestern Univ) ADMINI 2018.01.31 568
248 Special 1/9 (Tue) Dr. Choon Won Byeon, ETRI ADMINI 2018.01.09 555
247 12/23 (Sat) Prof. Liangbing (Bing) Hu/Univ. of Maryland file ADMINI 2017.12.22 574
246 Regular 11/28 (Tue) Dr. Woo-Jin Lee (Ministry of Science and ICT.) ADMINI 2017.11.24 1219
245 Special 11/24 (Fri) Takashi NOGUCH (University of the Ryukyus) ADMINI 2017.11.23 922
244 Special 11/21 (Tue) Dr. Young Ki Lee (ETRI) file ADMINI 2017.11.20 1065
243 Special 11/22 (Wed) Prof. Sung Hoon Kang (Johns Hopkins University) file ADMINI 2017.11.20 1359
242 Regular 11/21 (Tue) Dr. Byoung Koun Min, (KIST) ADMINI 2017.11.17 1496
241 Special 11/13 (Mon) Dr. Hans Aage Hiuler (Danish Power System) ADMINI 2017.11.10 1858
240 Special 11/13 (Mon) Prof. Jens Oluf Jensen (Technical University of Denmark) ADMINI 2017.11.10 803
239 Regular 11/14 (Tue) Prof. Jae-Byum Chang (Sungkyunkwan Univ) ADMINI 2017.11.10 765
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