Lowering Interfacial Dissolved Gas Concentration for Highly Efficient Hydrazine Oxidation at Platinum by Fluorosurfactant Modulation.

Autor:	Xu Zhao, Ranaweera, Ruchiranga, Mixdorf, Jason C., Nguyen, Hien M., Long Luo
Předmět:	HYDRAZINE OXIDATION PLATINUM FLUOROSURFACTANTS GASES CATIONIC surfactants OVERPOTENTIAL
Zdroj:	ChemElectroChem; 1/2/2020, Vol. 7 Issue 1, p55-58, 4p
Abstrakt:	Regulating the dissolved-gas concentration at the electrodesolution interface represents a promising universal strategy to achieve high efficiency towards gas evolution reactions. Here, we present a facile method to modulate the interfacial dissolved-gas concentration using cationic fluorinated pyridinium sulfonate (CFPS) for highly efficient hydrazine oxidation (HzOR). We found that the interfacial dissolved-nitrogen concentration was effectively lowered by the cationic surfactant CFPS, while CFPS still ensured a sufficient exposure of the active sites during the HzOR. As a result, relative to pure Pt, the CFPSmodulated Pt exhibited a 2.1-fold higher current density and a lower overpotential for HzOR. This work presents a new avenue to achieve highly efficient hydrazine oxidation through regulating the interfacial gas concentration. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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