Suppressing carbon corrosion via mechanically mixing transition metal phosphide clusters: a comparative in situ study in alkaline media

Abstract

Using differential electrochemical mass spectrometry (DEMS), carbon oxidation monitoring in alkaline media with sensitive detection of CO2 is enabled and a simple strategy to suppress carbon corrosion is offered.

Recent development and applications of differential electrochemical mass spectrometry in emerging energy conversion and storage solutions

“…This results in high ohmic resistance on the order of kΩ. 63 In cells where the resistance is less than 10 Ω, 106 iR compensation is also recommended to obtain the accurate potential-resolved data.…”

“…10j and k). 179 Other compounds such as NiB, 62 metal hydroxide 91,181 and metal phosphides 106 were also effective in suppressing carbon corrosion through DEMS measurements. Additional strategies have been demonstrated by DEMS studies as well to be powerful in inhibiting carbon corrosion (Fig.…”

A Perspective on Protective Carbon Shells for Improved Stability of Alkaline Water Oxidation Electrocatalysts

“…Recently, researchers have begun to employ carbon shells to protect electrocatalytic OER core structures from oxidation under alkaline conditions. Essentially, the carbon shell can limit electrolyte contact with the electrocatalytic core, while also imparting improved electrical conductivity, increased electrochemically active surface area, and providing additional active sites for OER electrocatalysis. − These carbon shell–core materials have been implemented as metal and transition metal nanoparticles encased in carbon, including metal carbides, metal phosphides, metal sulfides, MXenes, and other unique structures. − ,− While the carbon shells for these materials are reported as imparting stability, thermodynamic considerations and recent studies on carbon corrosion contradict this finding. − …”