Activity Trends for the Selective Oxidation of 2-Propanol to Acetone on Noble Metal Electrodes in Alkaline Electrolyte

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476045" target="_blank" >RIV/00216208:11320/23:10476045 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9jJRhIFnc~" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=9jJRhIFnc~</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acscatal.3c03423" target="_blank" >10.1021/acscatal.3c03423</a>

Result language

angličtina

Original language name

Activity Trends for the Selective Oxidation of 2-Propanol to Acetone on Noble Metal Electrodes in Alkaline Electrolyte

Original language description

Fuel cells based on 2-propanol can be used to produce electricity utilizing the hydrogen stored in liquid organic hydrogen carriers. While the focus has previously been on acidic media, where only platinum-based electrodes are active, we explore here the oxidation of 2-propanol in alkaline solutions on different noble metal electrodes. Using experimental and computational methods, we find that the reaction is selective to acetone, whereas C-C bond breaking and the formation of adsorbed CO do not take place. The onset potential increases along the series Rh &lt; Pt &lt; Pd &lt; Au, a trend that correlates with the adsorption energy of acetone on the respective surfaces. The oxidation rate decays under potentiostatic conditions due to the progressive accumulation of acetone at the surface. At high overpotentials, the reaction is limited by oxide formation. Given that alkaline systems are not restricted to exclusively platinum-based electrodes, a broader range of materials may be found that act as anodes for efficient 2-propanol fuel cells.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ACS Catalysis

ISSN

2155-5435

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

22

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

14562-14569

UT code for WoS article

001096781500001

EID of the result in the Scopus database

2-s2.0-85177731282