In:
ECS Meeting Abstracts, The Electrochemical Society, Vol. MA2016-02, No. 46 ( 2016-09-01), p. 3413-3413
Abstract:
Ruthenium (Ru) based catalysts, such as RuO 2 and Ru complexes, have been widely studied for various oxidation reactions, such as oxygen evolution reaction (OER) and alcohol oxidation reactions (AOR). For example, RuO 2 is an efficient anode catalyst for OER, which is a key reaction for artificial photosynthesis. However, as OER competes with AOR under the range of operating potentials, the high activity of RuO 2 for OER results in the low Faradaic efficiency for AOR. In contrast, some Ru complexes are known to catalyze AOR with high efficiency [1]. However, as these Ru complexes are homogeneous catalysts, they are fragile and are difficult to separate and recycle. Recently, we have focused on covalent triazine frameworks (CTFs) as heterogeneous electrocatalysts. CTFs have 1,3,5-triazine units as linkers, and are representative microporous conjugated polymers. As CTFs possess abundant nitrogen (N) atoms with electron lone pair for metal coordination, CTFs are expected to stabilize Ru atoms through coordination with the N atoms like Ru complexes. Recently, we have indeed synthesized single-Pt atoms modified CTF hybridized with conductive carbon nanoparticles (Pt-CTF) as an electrocatalyst [2]. The Pt-CTF catalyzed the oxygen reduction with a high methanol tolerance, a unique property that was attributed to the atomic dispersion of Pt. In the present work, we successfully synthesized a Ru-modified CTF (Ru-CTF; Figure ) and examined the electrochemical alcohol oxidation activity of this novel material. The Ru-CTF effectively oxidized alcohol with low OER activity. [1] TJ Meyer, M. Huynh, Inorganic chemistry, 2003 , DOI 10.1021/ic020731v. [2] K. Kamiya, et al, Nat. Comm. 2014 , 5, 5040. Figure 1
Type of Medium:
Online Resource
ISSN:
2151-2043
DOI:
10.1149/MA2016-02/46/3413
Language:
Unknown
Publisher:
The Electrochemical Society
Publication Date:
2016
detail.hit.zdb_id:
2438749-6
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