Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Whan‐Gi Kim"'
Autor:
Whan Gi Kim, Taehoon Hong, Soonho Lee, Hohyoun Jang, Md. Awlad Hossain, Hyunchul Ju, Tae-Whan Hong, Youngdon Lim
Publikováno v:
International Journal of Hydrogen Energy. 39:21595-21600
The sulfonated polyphenylenes containing benzophenone structure (sulfonated Parmax 1200, S-Parmax) were prepared by sulfonation reaction of Parmax 1200 with 30% fuming sulfuric acid, and degree of sulfonation was controlled by sulfonation reaction ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22f84ef33571770554eda45412daefde
https://doi.org/10.1016/j.ijhydene.2014.06.160
https://doi.org/10.1016/j.ijhydene.2014.06.160
Autor:
Sang Young Lee, Soonho Lee, Dong Wan Seo, Jinseong Lim, Whan Gi Kim, Taehoon Hong, M.-D. Awlad Hossain, Youngdon Lim
Publikováno v:
Journal of Nanoscience and Nanotechnology. 14:7948-7953
The novel sulfonated poly(ether sulfone)s containing mesonaphthobifluorene (MNF) moiety were synthesized and characterized their properties. The prepared polymers have highly conjugated aromatic structure due to the MNF group which is an allotrope of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::587a30e1d3a93619a8cc3ff57b09b328
https://doi.org/10.1166/jnn.2014.9464
https://doi.org/10.1166/jnn.2014.9464
Autor:
Md. Awlad Hossain, Soonho Lee, Whan Gi Kim, Hyunchul Ju, Seongyoung Choi, Youngdon Lim, Youngtae Jeon, Sang Young Lee, Hohyoun Jang
Publikováno v:
Solid State Ionics. 262:754-760
Anion exchange membranes of poly(tetra phenyl ether sulfone) containing hexa-imidazolium hydroxides on the hydrophilic segment of a polymer unit were synthesized by sequential polycondensation, chloromethylation, substitution with 1-methylimidazolium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e4fc4ad7eedb483d289f4959ebd292c
https://doi.org/10.1016/j.ssi.2013.09.036
https://doi.org/10.1016/j.ssi.2013.09.036
Autor:
Taehoon Hong, Soonho Lee, Whan Gi Kim, Jinseong Lim, Kim, Hohyoun Jang, Dong Wan Seo, Md. Awlad Hossain, Youngdon Lim
Publikováno v:
Electrochimica Acta. 118:18-25
Poly(ether sulfone)s containing hexaphenyl (PHP) was prepared by 1,2-bis(4-hydroxyphenyl)-3,4,5,6-tetraphenylbenzene, 4,4-hydroxyphenylsulfone, and 4,4-fluorophenylsulfone, followed bromination on phenyl groups to produce brominated PHP (Br-PHP). Gra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b3db879c2241719b525ed5261512730
https://doi.org/10.1016/j.electacta.2013.11.173
https://doi.org/10.1016/j.electacta.2013.11.173
Autor:
Hohyoun Jang, Hyunchul Ju, Awlad Hossain, Dong Wan Seo, Whan Gi Kim, Soonho Lee, Tae-Whan Hong, Youngdon Lim
Publikováno v:
International Journal of Hydrogen Energy. 39:1539-1548
A role of metallophthalocyanine (MPc) as an anti-oxidizing agent of polymer membrane and an accelerating agent of proton conductivity was discussed. The poly(ether sulfone)s bearing MPc (Ni, Co and Fe), PMPc were prepared by two-step reaction from ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b7c0760975b924ef0d8ee5b8831f07e
https://doi.org/10.1016/j.ijhydene.2013.04.066
https://doi.org/10.1016/j.ijhydene.2013.04.066
Autor:
Hyunchul Ju, Soonho Lee, Dong Min Kim, Whan Gi Kim, Hohyoun Jang, Dong Wan Seo, Youngdon Lim, Md. Awlad Hossain
Publikováno v:
Electrochimica Acta. 112:791-798
Metallophthalocyanine (MPc) is a potent catalyst for hydrogen peroxide oxidation (H 2 O 2 → 2H + + O 2 + 2e − ). The properties of membranes with and without MPc have been studied in this study. Poly(ether sulfone)s containing MPc (Ni and Co) (PM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7cc04deca5b0099d43163e8c8f21321
https://doi.org/10.1016/j.electacta.2013.07.116
https://doi.org/10.1016/j.electacta.2013.07.116
Autor:
Whan Gi Kim, Taehoon Hong, Youngdon Lim, Lei Jin, Md. Awlad Hossain, Seongyoung Choi, Soonho Lee, Hohyoun Jang
Publikováno v:
Reactive and Functional Polymers. 73:1299-1305
Anion exchange membranes of poly(fluorenylene ether sulfone) containing imidazolium hydroxide-functionalized fluorenyl groups were synthesized by sequential polycondensation, chloromethylation, substitution with imidazolium and ion exchange. They sho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8570979ca371b9b63bc1aac06039fd10
https://doi.org/10.1016/j.reactfunctpolym.2013.06.010
https://doi.org/10.1016/j.reactfunctpolym.2013.06.010
Autor:
Jin Seong Lim, Md. Awlad Hossain, Youngdon Lim, Soonho Lee, Whan Gi Kim, In Seok Jeong, Taew Han Hong, Yeong Lim Yoo, Seong Young Choi
Publikováno v:
Advanced Materials Research. 746:78-82
Conjugated cis/trans isomer-based polymer membranes were prepared with 25 mol% of bis (4-hydroxyphenyl)-1,2-diphenylethylene (BHDPE). BHDPE has a conjugated nonplanar conformation structure containing the peripheral four aromatic rings which facilita
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::548b5756a2bea2ed27850761e6b67299
https://doi.org/10.4028/www.scientific.net/amr.746.78
https://doi.org/10.4028/www.scientific.net/amr.746.78
Autor:
Soonho Lee, Whan Gi Kim, Hyun Chul Lee, Md. Awlad Hossain, Ho Hyoun Jang, Youngdon Lim, Dong Wan Seo
Publikováno v:
Journal of Industrial and Engineering Chemistry. 19:322-326
A new type of solid and gel state electrolytes based on siloxane cyclic sulfonium iodides was synthesized and used in dye-sensitized solar cells. The resulting electrolytes were characterized by 1 H NMR, TGA, diffusion coefficient, and ion conductivi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::972b4caf05906f9afc99776c13abd349
https://doi.org/10.1016/j.jiec.2012.08.019
https://doi.org/10.1016/j.jiec.2012.08.019
Autor:
Ho Hyoun Jang, Md. Awlad Hossain, Md. Monirul Islam, Whan Gi Kim, Soonho Lee, Youngdon Lim, Dong Wan Seo, Hyun Chul Lee
Publikováno v:
Electrochimica Acta. 86:352-359
Multi-sulfonated block copolymers (MSBPs) with sulfonated units of 5, 9, 10, and 14 mol% were successfully synthesized for proton exchange membrane. The hydrophobic block oligomer was prepared by 4,4′-dihydroxydiphenylsulfone and 4,4′-difluorodip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bda15a2d59958f9742632cbd265279a
https://doi.org/10.1016/j.electacta.2012.03.125
https://doi.org/10.1016/j.electacta.2012.03.125