Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Electrochemical and Spectroscopic Study of Homo- and Hetero-Dimetallic Phthalocyanines as Catalysts for the Oxygen Reduction Reaction in Acidic Media
Zhejiang Univ, Zhejiang Prov Key Lab Adv Chem Engn Mfg Technol, Coll Chem & Biol Engn, Hangzhou 310027, Zhejiang, Peoples R China..
Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Theoretical Chemistry and Biology.
Zhejiang Univ, Zhejiang Prov Key Lab Adv Chem Engn Mfg Technol, Coll Chem & Biol Engn, Hangzhou 310027, Zhejiang, Peoples R China..
Show others and affiliations
2018 (English)In: CHEMELECTROCHEM, ISSN 2196-0216, Vol. 5, no 22, p. 3478-3485Article in journal (Refereed) Published
Abstract [en]

Metallophthalocyanines (MPc, M=Fe or Co) have been investigated extensively as a typical type of transition metal macrocyclic catalysts for the oxygen reduction reaction (ORR). However, the understanding about ORR catalyzed by binuclear even heterodimetallic phthalocyanines in acidic condition is still not sufficient. Herein we synthesized two homodimetallicphthalocyanine (FePc-PcFe and CoPc-PcCo) and a heterodimetallic phthalocyanine (FePc-PcCo). The electrocatalytic activity of as-synthesized compounds were characterized by cyclic voltammetry (CV) and rotating disk electrode (RDE). Generally, the binuclear metallophthalocyanines show higher activity than their monomeric analogues including FePc and CoPc. Also, the Fe compounds exhibit better catalytic performance than the Co phthalocyanines. However, interestingly the heterodimetallic phthalocyanine FePc-PcCo shows similar half-wave potential and ORR activity with FePc-PcFe, rather than CoPc-PcCo. This may be explained by XPS and XAS, which reveal a similar square-planar structure existed in FePc-PcCo and FePc-PcFe and a non-planar structure in CoPc-PcCo. Furthermore, the increasing of the ORR activity among those five catalysts is well in agreement with the descending LUMO energies in DFT calculations. A lower LUMO energy indicates a favorable adsorption of O-2, which in turn affects the ORR performance.

Place, publisher, year, edition, pages
WILEY-V C H VERLAG GMBH , 2018. Vol. 5, no 22, p. 3478-3485
Keywords [en]
density functional calculations, electrochemistry, heterodimetallic phthalocyanines, oxygen reduction reaction, X-ray absorption spectroscopy
National Category
Theoretical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-239776DOI: 10.1002/celc.201800977ISI: 000450042200019Scopus ID: 2-s2.0-85053493360OAI: oai:DiVA.org:kth-239776DiVA, id: diva2:1276694
Note

QC 20190108

Available from: 2019-01-08 Created: 2019-01-08 Last updated: 2019-01-08Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Wang, Ying
By organisation
Theoretical Chemistry and Biology
Theoretical Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 4 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf