Sasaki, Tomoya; Izumi, Reiko; Tsuda, Tetsuya; Kuwabata, Susumu published an article about the compound: Silver(I) trifluoromethanesulfonate( cas:2923-28-6,SMILESS:O=S(C(F)(F)F)([O-])=O.[Ag+] ).Related Products of 2923-28-6. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:2923-28-6) through the article.
Due to their high conductivity and high physicochem. stability, carbon nanotubes (CNTs) have received a great deal of attention as a promising support material for Pt-based electrode catalysts for redox reactions (ORRs). However, to immobilize Pt nanoparticles (Pt NPs) on their inert surfaces, several CNT pretreatments, including the chem. generation of functional groups and polymer modifications, have been attempted. In this study, we propose a straightforward preparation method for Pt NPs supported on single- and multi-walled carbon nanotubes (SWCNTs and MWCNTs) at room temperature The preparation method includes only two steps: the magnetron sputtering of Pt onto diethylmethylammonium-based protic ionic liquid (IL) and the mixing of the resultant Pt NP-dispersed protic IL with pristine CNTs. Zeta potential measurements reveal that the spontaneous immobilization of the Pt NPs on the CNT surface during the mixing is facilitated by electrostatic interactions between the Pt NPs neg. charged by anion adsorption and the CNTs pos. charged by cation adsorption. The mass activity for the ORR of the Pt NP-modified SWCNTs (Pt-SWCNTs) and MWCNTs (Pt-MWCNTs) prepared using diethylmethylammonium trifluoromethanesulfonate as a medium is approx. 2.5 times higher than that of a com. available electrocatalyst. This high performance is attributable to the small size (ca. 1.9 nm) of Pt NPs with a narrow size distribution and high dispersity on CNTs. In the case of Pt-SWCNTs, surprisingly, the ORR activity is slightly enhanced after 20,000 cycles of an accelerated degradation test because of an unexpected Pt NP shape change from spherical to nanorod-like along the grooves formed at the contacts of the CNTs in the SWCNT bundle. This shape variation and the improvement in catalytic activity will lead to the development of innovative strategies for maintaining electrocatalytic activity over a long period.
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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem