Aqueous
Electrochemical Partial Oxidation of Gaseous
Ethylbenzene by a Ru-Modified Covalent Triazine Framework
Posted on 2020-06-22 - 10:44
Aqueous
electrochemical oxidation of hydrocarbons into valuable
compounds, such as alcohols and carbonyl compounds, has attracted
much attention because these systems can operate under mild conditions
without toxic oxidants or flammable solvents. The key requirements
to achieve such oxidation reactions are (1) highly reactive species
on an electrocatalyst for the activation of C–H bonds and (2)
efficient transportation pathway for water-insoluble hydrocarbons
to an electrode surface. We have determined that a gas diffusion electrode
(GDE) supporting Ru atom-modified covalent triazine frameworks (Ru-CTF)
has an activity for the electrooxidation of gaseous ethylbenzene to
acetophenone using an aqueous electrolyte. A high-valency RuO
species was formed in Ru-CTF as an effective active site for O-atom
insertion into stable C–H bonds. Furthermore, Ru-CTF showed
excellent stability during four consecutive cycles with the replacement
of the electrolyte every 12 h, although the reactive RuO species
is generated. As for the transportation pathway for substrates, the
amount of acetophenone generated from gaseous ethylbenzene was much
larger than that from ethylbenzene dissolved in an electrolyte. This
result indicates that the three-dimensional microstructures in the
GDE maximize the transportation of gaseous hydrocarbons and the oxidation
reaction occurs at the triple-phase boundary, which enables the use
of aqueous electrolytes.
CITE THIS COLLECTION
DataCiteDataCite
3 Biotech3 Biotech
3D Printing in Medicine3D Printing in Medicine
3D Research3D Research
3D-Printed Materials and Systems3D-Printed Materials and Systems
4OR4OR
AAPG BulletinAAPG Bulletin
AAPS OpenAAPS Open
AAPS PharmSciTechAAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität HamburgAbhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)ABI Technik (German)
Academic MedicineAcademic Medicine
Academic PediatricsAcademic Pediatrics
Academic PsychiatryAcademic Psychiatry
Academic QuestionsAcademic Questions
Academy of Management DiscoveriesAcademy of Management Discoveries
Academy of Management JournalAcademy of Management Journal
Academy of Management Learning and EducationAcademy of Management Learning and Education
Academy of Management PerspectivesAcademy of Management Perspectives
Academy of Management ProceedingsAcademy of Management Proceedings
Academy of Management ReviewAcademy of Management Review
Kato, Shintaro; Iwase, Kazuyuki; Harada, Takashi; Nakanishi, Shuji; Kamiya, Kazuhide (2020). Aqueous
Electrochemical Partial Oxidation of Gaseous
Ethylbenzene by a Ru-Modified Covalent Triazine Framework. ACS Publications. Collection. https://doi.org/10.1021/acsami.0c07228