Postsynthesis Ligand Exchange Induced Porphyrin Hybrid Crystalloid Reconstruction for Self-Enhanced Electrochemiluminescence

Yi Xuan Li, Junji Li, Wen Rong Cai, Wen Li Xin, Robert S. Marks, Hai Bo Zeng, Serge Cosnier, Xueji Zhang, Dan Shan

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

In traditional coreactant electrochemiluminescence (ECL), the efficiency of the coreactant catalyzed into an active intermediate is one of the dominant factors restricting the luminous intensity. In this work, Co-2-MI-ZnTCPP is designed as a composite material integrating coreaction accelerator (Co-N) and luminophore. Through the catalytic effect of Co-N structures on hydrogen peroxide, the in situ generation and accumulation of active intermediates are achieved, which will react with porphyrin anion radical, thereby bringing out self-enhanced ECL. By adjusting the scanning potential range, the ECL mechanism is thoroughly studied and the contribution of each potential window to the luminescence is obtained. This work provides inspiration for the design of integrated ECL emitters with a coreaction accelerator and luminophore, providing a new way for the construction of a self-enhanced ECL emitter.

Original languageEnglish
Pages (from-to)15270-15274
Number of pages5
JournalAnalytical Chemistry
Volume92
Issue number23
DOIs
StatePublished - 1 Dec 2020

ASJC Scopus subject areas

  • Analytical Chemistry

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