Towards graphene inks

Graphene oxide (GO) dispersed in water can be transformed to graphene/graphene oxide hydrogels with a viscosity more suited for printing. In our mild process, GO aldehyde/keto groups are transformed to amines with loss of oxygen as water, while GO carboxyl units remain. The amine units of the thus partially reduced GO sheets allow a more efficient interaction with other GO sheets than possible for non-treated GO; covalently by intersheet imine formation and non-covalently by acid-base salt bridge formation between carboxylic units and amines.

Orginalartikel: Efficient Gelation of Graphene Oxide Aqueous Dispersion Induced

by Sonication-Promoted, https://www.onlinelibrary.wiley.com/doi/10.1002/cnma.201800286 (2018) Chem-NanoMat, DOI: 10.1002/cnma.201800286

Man Song, Leili Tahershamsi, Jie Zhao,Zhibin Zhang,*and Helena Grennberg*

Helena Grennberg undervisar i följande kurser på Institutionen för kemi:

Industrial Organic Chemistry 2019/2020 (10 credits)
https://uu.se/en/admissions/freestanding-courses/course/?kKod=1KB414&typ=1

Organic Chemistry II 2019/2020 (15 credits)
https://uu.se/en/admissions/freestanding-courses/course/?kKod=1KB420&typ=1

Syllabus for Degree Project C in Chemistry (15 credits)
https://www.uu.se/en/admissions/freestanding-courses/course-syllabus/?kKod=1KB010

Materials and Sustainable Development (10 credits)
https://studentportalen.uu.se/portal/portal/uusp/student/student-course?uusp-locale=en

Environmental Chemistry (15 credits)
https://studentportalen.uu.se/portal/portal/uusp/student/student-course?uusp-locale=en