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Industrial Polymers
Published in Manas Chanda, Plastics Technology Handbook, 2017
Another two-pack RTV formulation cures by hydrosilation, which involves the addition reaction between a polysiloxane containing vinyl groups (obtained by including methylvinyldichlorosilane in the original reaction mixture for synthesis of polysiloxane) and a siloxane cross-linking agent that contains Si–H functional groups, such as Si[OSi(CH3)2H]4. The reaction is catalyzed by chloroplatinic acid or other soluble platinum compounds.
Glucose driven self-sustained electro-Fenton platform for remediation of 2,4-dichlorophenoxy herbicide contaminated water
Published in Environmental Technology, 2022
Priyadharshini Aravind, Subramanyan Vasudevan
The fabrication of Pt/Ti and PbO2/Cu/Ti electrodes was carried out in the laboratory. The Pt/Ti was prepared by thermal decomposition using 3% chloroplatinic acid (Alfa Aeser, U.K.). The Ti electrode was dipped into the solution of 3% chloroplatinic acid, air dried and reduced in a hydrogen atmosphere for 1 h. The PbO2/Cu/Ti electrode was prepared by electrodeposition using lead nitrate (250–260 gpl), copper nitrate (30–40 gpl), sodium hydroxide (10%), and nitric acid (10%) as electrolytes at a current density of 0.016–0.032 A cm−2 for 30 min. Titanium plate was used as cathode and anode for electrodeposition of PbO2/Cu on Ti. The boron doped diamond (BDD) electrode was procured from CONDIAS GmbH (Germany). The graphite plate was obtained from Alfa Aeser, U.K. The D-glucose, potassium hydroxide pellets, sodium sulphate, iron (II) sulphate heptahydrate and acetonitrile (HPLC grade) were purchased from Merck; 2,4-dichlorophenoxy acetic acid (2,4-D) was bought from Sigma-Aldrich and used without any purification. The physio-chemical properties and the structure of 2,4-D is given in Table 1.
Platinum nanoparticles embedded into polyaniline on carbon cloth: improvement of oxygen reduction at cathode of microbial fuel cell used for conversion of medicinal plant wastes into bio-energy
Published in Environmental Technology, 2022
Aicha Zerrouki, Mostefa Kameche, Ahcene Ait Amer, Ahlem Tayeb, Douniazeed Moussaoui, Christophe Innocent
Following a previous investigation using Carbon Cloth (CC) and stainless steel grid employed as supporting materials for the electrodeposition of inert carriers such as clay, silica, and aluminum-nickel alloy, combined with nickel, for potential application as active MFC cathodes [30], we have continued the study by further elaborating a modified cathode by electrochemically depositing, the Pt-nanoparticles on a piece of the CC of overall area 7.48 cm2. The solution used for this purpose was concentrated chloroplatinic acid (10−2 M). The insitu-electrodeposition of the Pt-nanoparticles on the CC was made by the chronoamperometry method with the potentiostat-galvanostat40 PGZ301 by using the working electrode CC, the reference electrode Ag/AgCl and the platinum counter electrode. A negative potential of −500 mV was applied during 3600 s, to reduce the tetravalent platinum cation Pt4+ to platinum metal Pt(0).
Investigation of the effect of alkyl substitution on DSSC efficiency of Ru(II) complexes bearing tridentate benzimidazole ligands
Published in Inorganic and Nano-Metal Chemistry, 2020
The FTO electrodes were prepared by cleaning in ultrasonic bath at 30 °C for 30 min in detergent, 0.1 M HNO3 solution and MeOH, respectively. Electrodes used as counter electrodes were coated with 5 mM chloroplatinic acid solution (in IPA). The working electrodes were coated with TiO2 paste (3.5 g of TiO2 suspended in 15 mL of EtOH and homogenized with 0.5 mL of Ti(IV) isopropoxide) to create an area of 0.36 cm2 by Dr. Blade technique. The electrodes were sintered in oven at 450 °C for 3 h and released in Ru(II) complex solutions (0.5 mM, in DMSO) for 24 h. At the end of the time, the electrodes were washed with MeOH, dried and sealed with the counter electrode to form a sandwich shaped battery. I–/I3– electrolyte solution was dropped between the batteries thus formed and the current–potential (I–V) characteristics of the batteries were measured by applying a 1.5 AM light power with the Xe lamp solar simulator. The obtained efficiency values were given in comparison with reference Ru dye.