Preparation and electrocatalytic properties of platinum microparticles incorporated into polyvinylpyridine and Nafion films

Electrocatalysis in water electrolysis with solid polymer electrolyte

“…Supersaturation of H 2 near the interface between Pt and solution and diffusion into the bulk is likely to take place on active Pt electrodes [25], which may explain the low slope where transport of H 2 away from the Pt catalyst becomes the rds and the electrochemical steps in the HER are at equilibrium. For electrodes of high i 0 , the back reaction must also be taken into account when measuring the Tafel slope at low η. Maksimov et al [135] found similar behaviour of the HER on Pt particles (3 nm) incorporated into Nafion membrane.…”

Improved performance of membrane free single-chamber air-cathode microbial fuel cells with nitric acid and ethylenediamine surface modified activated carbon fiber felt anodes

“…Among all the methods tried, diffusion of metals and metal oxides into carbon demonstrated to be one of the effective ways to allow anode modification and to enhance the power generation of MFCs (Maksimov et al, 1998;Gloaguenb et al, 1999;Park and Zeikus, 2002;Lowy et al, 2006;Prasad et al, 2007;Rosenbaum et al, 2007;ter Heijne et al, 2008). Anode modification of carbon materials with non-metals also showed positive impact on power performance (Park and Kim, 2000;Park and Zeikus, 2003;Zou et al, 2008;Qiao et al, 2007;Feng et al, 2010a).…”

Nafion Film-Templated Platinum Electrodes for Oxygen Reduction

“…An important variant of the electrochemical methods for production of ordered, nanostructured metals involves templating (or structure-directing) agents such as hexagonal-phase liquid crystals [5] and polymer films, first reported by Kuwana and co-workers [6,7]. There have also been several reports on the electrochemical deposition of metal particles through solid polymer electrolyte films (e.g., Nafion®) [8][9][10][11][12][13][14][15][16][17]. With this technique, Pt in principle is deposited in the hydrophilic pores of the film.…”