BEGIN:VCALENDAR VERSION:2.0 PRODID:www.dresden-science-calendar.de METHOD:PUBLISH CALSCALE:GREGORIAN X-MICROSOFT-CALSCALE:GREGORIAN X-WR-TIMEZONE:Europe/Berlin BEGIN:VTIMEZONE TZID:Europe/Berlin X-LIC-LOCATION:Europe/Berlin BEGIN:DAYLIGHT TZNAME:CEST TZOFFSETFROM:+0100 TZOFFSETTO:+0200 DTSTART:19810329T030000 RRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=3;BYDAY=-1SU END:DAYLIGHT BEGIN:STANDARD TZNAME:CET TZOFFSETFROM:+0200 TZOFFSETTO:+0100 DTSTART:19961027T030000 RRULE:FREQ=YEARLY;INTERVAL=1;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:DSC-22632 DTSTART;TZID=Europe/Berlin:20260716T130000 SEQUENCE:1779687549 TRANSP:OPAQUE DTEND;TZID=Europe/Berlin:20260716T150000 URL:https://www.dresden-science-calendar.de/calendar/de/detail/22632 LOCATION:TUD Materials Science - HAL\, Hallwachsstraße 301069 Dresden SUMMARY:Gao: Macro-assembled Graphene Materials CLASS:PUBLIC DESCRIPTION:Speaker: Chao Gao\nInstitute of Speaker: Department of Polymer Science and Engineering\, Zhejiang University\nTopics:\nMaterialien\n Loc ation:\n Name: TUD Materials Science - HAL (HAL Bürogebäude - 115)\n S treet: Hallwachsstraße 3\n City: 01069 Dresden\n Phone: \n Fax: \nDesc ription: Graphene is renowned as the \"King of New Materials\" due to its exceptional mechanical\, electrical\, optical\, and thermal properties\, a long with immense application potential\, making it a strategic frontier m aterial. Our team used graphene oxide as a representative research model o f two-dimensional macromolecules and conducted systematic studies on graph ene oxide liquid crystals and macroscopic assembly materials through strat egies such as wet assembly\, chemical reduction\, and high-temperature red uction. &\;#13\; In 2011\, our team pioneered a wet-spinning assembly strategy for graphene oxide liquid crystals\, producing meter-long continu ous graphene fibers for the first time\, thereby opening a new preparation route \"graphite to graphene to carbon fibers\". We also proposed a defec t-engineering strategy to comprehensively control structural defects in gr aphene fibers from the molecular to macroscopic scale. Based on the \"defe ct-free design principle\"\, our team successfully fabricated macroscopic highly thermal conductive graphene films using ultra-large\, debris-free g raphene oxide sheets with low edge defects as assembly units. &\;#13\; Additionally\, our team developed a hydroplastic foaming method for the c ontinuous preparation of graphene aerogels under ambient temperature and p ressure\, effectively overcoming fundamental challenges in traditional met hods\, such as complex drying processes\, difficulties in structural contr ol\, and excessive junction defects. By deeply investigating the structure -property relationship of defects\, our team provided new insights into th e controllable preparation of high-performance macroscopic graphene materi als.&\;#13\; References:&\;#13\; [1] Li P.\, Wang Z.\, Cai G.#\, Zha o Y.\, Deng Z.\, Wang B.\, Li Z.\, Ming X.\, Gao W.\, Xu Z.*\, Xu Z.*\, Li u Y.*\, Gao C.*. Nature Materials\, 2025\, DOI : 10.1038/s41563-025-02384 -7. &\;#13\; [2] Li P.\, Wang Z.\, Qi Y.\, Cai G.\, Zhao Y.\, Ming X.\, Lin Z.\, Ma W.\, Lin J.\, Li H.\, Shen K.\, Liu Y.*\, Xu Z.*\, Xu Z.*\, G ao C.*. Nat. Commun. 2024\, 15\, 409.&\;#13\; [3] Pang K.\, Xia Y.\, Li u X.\, Tong W.\, Li X.\, Li C.\, Zhao W.\, Chen Y.\, Qin H.\, Fang W.\, Pe ng L.\, Liu Y.\, Gao W.\, Xu Z.*\, Liu Y.*\, Gao C.*. Dome-celled aerogels with ultrahigh-temperature superelasticity over 2273 K. Science\, 2025\, 389\, 6757\, 290.&\;#13\; [4] Xia Y.\, Qin H.\, Tong W.\, Qi Y.\, Li K. \, Liu Y.\, Xu Z.\, Liu Y.\, Pang K.*\, Gao C.*\, Gao W.*. Adv. Mater. 202 4\, 2417462.&\;#13\; [5] Chang D.\, Liu J.\, Fang B.\, Xu Z.\, Li Z.*\, Liu Y.*\, Brassart L.\, Guo F.\, Gao W.\, Gao C.*. Science 2021\, 372\, 6 14.&\;#13\; [6] Sun H.\, Xu Z.\, Gao C.*. Adv. Mater. 2013\, 25\, 2554. &\;#13\; [7] Xu Z.\, Gao C.*. ACS Nano 2011\, 5\, 2908. DTSTAMP:20260525T103834Z CREATED:20260130T063847Z LAST-MODIFIED:20260525T053909Z END:VEVENT END:VCALENDAR