Poisoning of platinum catalysts with a low content of active metal on a carrier, under conditions of dehydrogenation catalysis

Microbial Desalination Cells with Efficient Platinum‐Group‐Metal‐Free Cathode Catalysts

“…Pt is by far the best catalyst in acidic media but unfortunately, as the pH moves towards neutrality and even further to alkalinity, it loses its supremacy due to the negative interactions with anions within the solution that lower its intrinsic catalytic activity. Several studies have exploited this interaction with diverse anions ,. Despite Fe‐NCB is mainly constituted by carbonaceous materials, the defects (iron and nitrogen) on the graphene sheet act as active sites that are able to lead to a direct 4e‐ or a 2×2e‐ transfer mechanism.…”

Iron based catalysts from novel low-cost organic precursors for enhanced oxygen reduction reaction in neutral media microbial fuel cells

“…platinum) deactivating the catalyst centers. 33 Each MFC type was tested in triplicate. The utilization of pre-colonized anodes, allowed immediate MFC operation instead of the 2-3 weeks start up time necessary for electroactive biofilm formation and establishment.…”

Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts

“…These catalysts were extensively used in the past, but both the high costs and low durability have significantly lowered their utilization in MFCs [33]. Particularly, Pt is poisoned severely with anions (mainly S 2− and SO 4 2− ) which are naturally presented in the wastewater as recently demonstrated [34].…”