Preparation of Pt deposited nanotubular TiO2 as cathodes for enhanced photoelectrochemical hydrogen production using seawater electrolytes

Tapping hydrogen fuel from the ocean: A review on photocatalytic, photoelectrochemical and electrolytic splitting of seawater

“…Excellent photocurrent densities of 10 and 20 mA.cm -2 could moreover be achieved for applied potentials of 0.7 V and 0.9 V vs. RHE using this system [89]. As a final remark, it is even stated in several studies that salts in seawater could act as an ideal electrolyte if corrosion and scaling issues are solved [70,92,160]. Important parameters are composition, concentration and ionic strength [92].…”

“…This is well below the DOE target. Pure photocatalysis would thus outperform current PEC water splitting (US$ 4.2-10.4 .kg -1 H2) due to its simpler design [43], despite the difficulties concerning catalyst immobilization and recovery [70]. Note that over 80% of this maximal cost for PEC water splitting comes from the materials, construction and installation of the PEC cells [43].…”

A Short Review on Hydrogen, Biofuel, and Electricity Production Using Seawater as a Medium

“…Nam et al − evaluated PEC performance of TiO 2 photoanodes using natural seawater. H 2 evolution rate of TiO 2 photoanode was ca.…”

“…H 2 evolution rate of TiO 2 photoanode was ca. 215 μmol/cm 2 h at an optimum external bias of 3.0 V. The efficiency was further increased by the deposition of Pt (0.2 wt %) co-catalyst 40 or enzyme. 42 Nam et al suggested that nanocomposite showed high performance when compared to single-phase electrode.…”

Hidrogénfejlesztés nemesfémekkel módosított felületű TiO2 fotokatalizátorok alkalmazásával

“…4. ábra A TiO2 felületére leválasztott nemesfémek töltéscsapdázó hatása A TiO2 fotokatalizátorok hidrogénfejlesztő képességének javítása érdekében leginkább arany [22][23][24][25][26][27][28][29][30][31], ezüst [32][33][34][35], platina [36][37][38][39][40][41][42][43][44][45], palládium [46][47][48][49][50], ródium [46], illetve ruténium [51][52][53] …”