Solar-Powered Production of Molecular Hydrogen from Water

Abstract

A Ti metal sheet (Ti-Gr.2 sheet, 0.50 mm thick) was cleaned using SiC sandpaper (120 to 240 grit) before coating with substrates. The coating process typically consists of a pre-coat containing Ir and Ta (Ir:Ta = 0.67:0.33 mole ratio), a sealing coat comprising SnO 2 doped with Bi (Sn:Bi = 0.9:0.1), a slurry coating comprising TiO 2 and optionally doped with Bi (Ti:Bi = 0.96:0.04), and an overcoat essentially comprising the oxides of Ti and Bi (Ti:Bi = 0.9:0.1). Each step of coating requires a specific heat treatment regime with different temperatures and times. The anode-cathode couple is composed of a single anode with an active area of contact the electrolyte (10.0×1.2×2.0 cm) and two pieces of the same-sized SS cathode (Hastelloy C-22) faced the both sides of the anode with a distance of separation of 2 mm.

Dye-sensitized photoelectrochemical cell on plasmonic Ag/AgCl @ chiral TiO 2 nanofibers for treatment of urban wastewater effluents, with simultaneous production of hydrogen and electricity

“…also be formed during the degradation of organic matter [11,42]. The H 2 production was not observed until 40 min ca., when DO and Cu 2+ were almost totally consumed (Fig.…”

Mixed-Metal Semiconductor Anodes for Electrochemical Water Splitting and Reactive Chlorine Species Generation: Implications for Electrochemical Wastewater Treatment

“…Given the current level of interest in photo-electrochemical water splitting, chlorine production, and electrochemical wastewater treatment [14][15][16] for small scale application or for distributed water treatment systems, alternatives to the platinum group metals or boron-doped diamond electrodes are needed to lower the costs of electrochemical treatment [17][18][19][20][21][22][23][24][25][26]. Alternative electroactive materials are needed in order to lower the cost of production of semiconductor anodes for larger-scale practical applications.…”

The Pyrolysis of Glycerol Using Microwave for the Production of Hydrogen

“…Some efforts to produce hydrogen has been conducted, but so far about 95% of H 2 is produced from fossil fuels via pyrolysis or steam reforming (Adhikari, 2008;Iriondo, 2009) and only about 5% is produced through renewable sources. One technology that is used is through the process of electrolysis of water (Park et al, 2008). Both types of these processes are still an intermediate technology, because it requires energy to produce hydrogen (Nianjun Luo, 2009).…”