In:
Angewandte Chemie, Wiley, Vol. 128, No. 49 ( 2016-12-05), p. 15608-15612
Abstract:
Molecular ruthenium‐based water oxidation catalyst precursors of general formula [Ru(tda)(L i ) 2 ] (tda 2− is [2,2′:6′,2′′‐terpyridine]‐6,6′′‐dicarboxylato; L 1 =4‐(pyren‐1‐yl)‐ N ‐(pyridin‐4‐ylmethyl)butanamide, 1 b ; L 2 =4‐(pyren‐1‐yl)pyridine), 1 c ), have been prepared and thoroughly characterized. Both complexes contain a pyrene group allowing ready and efficiently anchoring via π interactions on multi‐walled carbon nanotubes (MWCNT). These hybrid solid state materials are exceptionally stable molecular water‐oxidation anodes capable of carrying out more than a million turnover numbers (TNs) at pH 7 with an E app =1.45 V vs. NHE without any sign of degradation. XAS spectroscopy analysis before, during, and after catalysis together with electrochemical techniques allow their unprecedented oxidative ruggedness to be monitored and verified.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v128.49
DOI:
10.1002/ange.201609167
Language:
English
Publisher:
Wiley
Publication Date:
2016
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