Catalysis in Low‐Temperature Fuel Cells – An Overview

Highly loaded carbon black supported Pt catalysts for fuel cells

“…Further increase of D(Pt,H 2 ) was caused by the dechlorination procedure and the increase factors were 1.5 and 1.7 for ExpCB and 350G supported catalysts, respectively. D(Pt,H 2 ) were 4.5 and 8.0 nm for the dechlorinated samples H 2 PtCl 6 /350G(CRNaWR) and H 2 PtCl 6 /ExpCB(CRNaWR), respectively, and were still within the range desirable for Pt fuel cell catalysts [29][30][31]. XRD analysis revealed high isomorphism of deposited cubic phase of Pt with D(Pt,XRD) about and 6 nm for H 2 PtCl 6 /350G(CRNaWR) 10 nm for H 2 PtCl 6 /ExpCB(CRNaWR).…”

Synthesis of CuCorePtShell Nanoparticles as Model Structures for Core–Shell Electrocatalysts by Direct Platinum Electrodeposition on Copper

“…However, Pt is expensive and rare and strategies to reduce the amount of Pt needed for a given technological application are highly desired. This is particularly true for low‐temperature fuel cells, where the reduction of the amount of Pt needed at the cathode side is, for commercial reasons, one of the major aims of current applied research to enable the widespread application of these high‐efficiency energy converters for example, in the mobility sector 1. 2…”

“…Various concepts for fuel‐cell cathode catalysts have been put forward,1 including alloying of Pt with less expensive (and noble) metals,2 the formation of core–shell catalysts,3 and the total replacement of Pt by using noble‐metal‐free catalytic materials 4…”