신소재공학과

Seminar

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.

No. Subject Author Date Views
Notice 7/13 (Fri) Prof. Dong Ryeol Whang (Johannes Kepler University Linz, Austria) ADMINI 2018.07.09 10
Notice 6/5 (Tue) Prof. Sunghwan Lee (Baylor University) ADMINI 2018.06.05 216
Notice 5/29 (Tue) Prof. Sang Ho Oh (Yonsei Univ. College of Medicine) ADMINI 2018.05.29 216
Notice 5/15 (Tue) Prof. Myung Gil Kim (Dept. of Chemistry, Chung-Ang Univ.) ADMINI 2018.05.15 436
261 5/8 (Tue) Prof. Ju-Young Kim (UNIST MSE) ADMINI 2018.05.09 501
260 5/1 (Tue) Prof. Duk-Yong Yoon (KAIST MSE) ADMINI 2018.04.30 654
259 4/24 (Tue) Kyeong Ho Chang (CEO, Innox Advanced Materials) ADMINI 2018.04.23 557
258 4/10 (Tue) Prof. Ki Jun, Yu (Yonsei Univ., School of Electrical and Electronic Engineering) ADMINI 2018.04.09 644
257 4/3 (Tue) Master Byung-Gi Choi (Samsung Advanced Institute of Technology) ADMINI 2018.04.02 522
256 3/27 (Tue) Prof. Seungbum Hong (KAIST MSE) ADMINI 2018.03.26 491
255 3/20 (Tue) Prof. Jung In-Ho (Seoul National University, MSE) ADMINI 2018.03.20 363
» 3/13 (Tue) Prof. Jong-Beom Baek (School of Energy and Chemical Engineering, UNIST) ADMINI 2018.03.13 359
253 3/6 (Tue) Prof. Seok-Young Ryu (KAIST CS) ADMINI 2018.03.05 322
252 2/27 (Tue) Dr. Jin-Woo Han (NASA) ADMINI 2018.02.27 387
251 2/20 (Tue) Dr. Jae Beom Jang (Sungkyunkwan Univ) ADMINI 2018.02.19 352
250 2/8 (Thu) Prof. Pei-Chen Su (Nanyang Technological University) file ADMINI 2018.02.05 344
249 2/13 (Tue) Prof. Sungkyu Kim (Northwestern Univ) ADMINI 2018.01.31 424
248 1/9 (Tue) Dr. Choon Won Byeon, ETRI ADMINI 2018.01.09 445
247 12/23 (Sat) Prof. Liangbing (Bing) Hu/Univ. of Maryland file ADMINI 2017.12.22 465
246 11/28 (Tue) Dr. Woo-Jin Lee (Ministry of Science and ICT.) ADMINI 2017.11.24 1141