Preparation and electrocatalytic performance of Fe–N–C for electroreduction of H2O2

Abstract

Fe-N-C catalysts were prepared through metal-assisted polymerization method. Effects of carbon treatment, Fe loading, nitrogen source, and calcination temperature on the catalytic performance of the Fe-N-C for H 2 O 2 electroreduction were measured by voltammetry and chronoamperometry. The Fe-N-C catalyst shows optimal performance when prepared with pretreated active carbon, 0.2 wt.% Fe, paranitroaniline (4-NA) and one-time calcination. The Fe-N-C catalyst displayed good performance and stability for electroreduction of H 2 O 2 in alkaline solution. An Al-H 2 O 2 semi-fuel cell was set up with Fe-N-C catalyst as cathode and Al as anode. The cell exhibits an open-circuit voltage of 1.3 V and its power density reached 51.4 mW cm −2 at 65 mA cm −2 .

Preparation of NiCo2O4 Nanosheet Arrays and its High Catalytic Performance for H2O2 Electroreduction

“…It can be observed that there were small bubbles formed on the electrode surface when H 2 O 2 concentration is higher than 0.6 mol L −1 . The comparation of H 2 O 2 catalytic performance on NiCo 2 O 4 /Ni foam with other representative nanomaterials reported previously 16, 20, 21, 47–50 was shown in Table 1. The current density is chosen at –0.4 V from the CV measurement.…”

Electrocatalysts for Hydrogen Peroxide Reduction Used in Fuel Cells

“…Not only active but also selective cathodes for two-electron reduction of H2O2 should be developed to achieve high power fuel cells using H2O2 as an oxidant. Suitable catalysts for two-electron reduction of H2O2 would be found in electrodes used in H2O2 detection sensors but not used in fuel cells, such as shape-controlled metal nanoparticles, 79,80 graphene based materials, [81][82][83] polyoxometalate, [84][85][86][87][88] and metal complexes. 89,90…”