Electrocatalysis water electrolysis

The targets of electrocatalysis are at the basis of recent developments in the field of water electrolysis. First, it is necessary to distinguish between materials evaluation and materials selection. The former is the search for materials with better and better properties for the wanted electrode process. The latter implies global considerations of applicability. This is probably what makes academic research differ from R D. The former is favored by scientifically exciting performance, in the latter it is necessary to find a compromise between, for instance, activity and stability or between efficiency and economic convenience. 

B. Electrocatalysis of Oxygen Evolution in Advanced Alkaline Water Electrolysis... 

Rasten, E., Hagen, G., Tunold, R. (2003). Electrocatalysis in water electrolysis with solid polymer electrolyte. Electronica Acta 48,3945-3952. 

S. Trasatti, Electrocatalysis in Water Electrolysis , Book of Abstracts, 1st Regional Symposium on Electrochemistry of South-East Europe, Rovinj, Croatia (2008) 1. 

In electrocatalysis the use of metal-zirconium alloys in water electrolysis is a good example. It seems to be well established that the very high electrocatalytic activity of the HF-treated amorphous Ni and Cu electrodes is related to the presence of a rough, Raney-type surface structure. The beneficial effect of the amorphous structure is that it ensures the ready formation of a thick, stable, active surface layer. 

Andolfatto, F., Durand, R., Michas, A., Millet, P., Stevens, P. Solid polymer electrolyte water electrolysis - electrocatalysis and long-term stability. Int. J. Hydrogen Energy 19, 421-427... 

Steam electrolysis splits water in the form of steam into hydrogen and oxygen by use of electricity and thus can be used as a method to produce hydrogen. Unlike other types of electrolysis, e.g., alkaline water electrolysis and polymer electrolyte water electrolysis, the steam electrolysis operates typically at 700-1,000 °C since the electrolysis uses solid electrolyte that works at the high temperatures. Such high operation temperature leads to fast kinetics for the electrode reactions, so that precious metals are not necessary for the electrocatalysis. 

Many studies pertaining to water electrolysis electrocatalysis in regenerative fuel cells have been published. The catalytic materials used are in general metal alloys and oxides. More recent studies have shown that Ptjlri (numbers in subscripts indicate atomic ratios) or 50% Pt/50% Ir02 (wt%) can be used in... 

In this chapter, the focus will be on trends in electrocatalysis of the water-splitting reaction or the oxygen evolution reaction (OER), which is the reaction at the anode side in an electrolysis cell. Furthermore, simple framework for addressing OER applying DFT simulations will be presented. For further reading, there are two previous book chapters where the approach has been reviewed [3, 4],... 

Earlandite structure, 849 Electrical conductivity metal complexes, 133 tetracyanoplatinates anion-deficient salts, 136 Electrical properties metal complexes, 133-154 Electrocatalysis, 28 Electrochemical cells, 1 Electrochemistry, 1-33 hydrogen or oxygen production from water coordination complex catalysts, 532 mineral processing, 831 reduction, 831 Electrodeposi (ion of metals, 1-15 mineral processing difficulty, 831 Electrodes clay modified, 23 ferrocene modified, 20 nation coated, 15 polymers on, 16 polyvinylferrocene coated, 19 poly(4-vinylpyridine) coated, 17 redox centres, 17 Prussian blue modified, 21 surface modified, 15-31 Electrolysis... 

Slavcheva E, Radev I, Bliznakov S (2007) Sputtered iridium oxide films as electrocatalysis for water splitting via PEM electrolysis Electrochimica. ACTA 52 3889-3894... 

---