Boosted performance of NiOx/Pt nanocatalyst for the electro-oxidation of formic acid: A substrate's functionalization with multi-walled carbon nanotubes

Enhanced formic acid electro-oxidation reaction over Ir,N-doped TiO2-supported Pt nanocatalyst

“…Additionally, the Pt/Ir,N-doped TiO 2 catalyst also exhibited high FAOR activity compared to Pt NPs loaded on undoped and single-element doped TiO 2 supports, indicating the advantages of Ir,N-doped TiO 2 support for the FAOR process. Apart from the j HCOOH /j CO ratio, the j HCOOH /j b value is also considered a measure of the tolerance ability of catalysts towards carbonaceous intermediate species, meaning the larger the j HCOOH /j b ratio, the higher the anti-poisoning ability [49,53]. The j HCOOH /j b ratio of the Pt/ Ir,N-doped TiO 2 catalyst was 0.25, being 2.02-fold enhancement in comparison with the Pt/C catalyst (0.12), indicating that fewer carbonaceous species were formed at the Pt/Ir,N-doped TiO 2 surface than at the Pt/C catalyst.…”

Boosted formic acid electro-oxidation on platinum nanoparticles and “mixed-valence” iron and nickel oxides

“…55 Interestingly, this ternary FeO x /NiO x /Pt/GC catalyst was superior to several other catalysts toward FAO, according to the literature (see Table 3). 11,31,56–64…”

“…2. 31,54 On the other hand, in Fig. 5B, mass activities were normalized to the mass of Pt that was computed from the charge (Q) related to the i-t curve obtained during deposition according to Faraday's law (Fig.…”

“…The modification of nano-Pt with nano-NiO x and/or nano-FeO x was planned from their excellent catalytic characteristics toward the oxidation of small organic molecules. 6,31–33 Interestingly, with this modification, the catalyst's cost was reduced by lowering the Pt content, and the catalyst's activity toward FAO was boosted with a longer lifetime and a remarkable tolerance against CO poisoning, which are the requirements to enhance the performance of DFAFCs.…”

Tailor-designed nanowire-structured iron and nickel oxides on platinum catalyst for formic acid electro-oxidation

“…It is also interesting to note the competitive performance of the FeOx/NiOx/Pt catalyst, especially aer activation, for the FAOR and CO tolerance when compared to the literature data for this reaction (see Table 2). 41,46,[56][57][58][59][60]…”