Abstract:
The present invention provides a method of forming a tantalum alloy coating film using a molten salt multi-anode reactive alloy coating (MARC) process, and a structure frame manufactured thereby. According to the present invention, provided is a method of forming a tantalum alloy coating film using a molten salt MARC process.
Abstract:
Provided is a method for producing hydrogen and surfuric acid by adding sulphur dioxide gas to an anode of an electro-chemical cell having a ion conductive polymer film and adding water an cathode of the electro-chemical cell as electro-chemical reaction that is characterized in reducing cross over of surfuric acid in the cathode of the electro-chemical cell by supplying water and hydrogen peroxide to the cathode of the electro-chemical cell.
Abstract:
PURPOSE: A quantification of solution produced after Bunsen reaction in process of preparing sulfur-iodine thermochemical hydrogen is provided to quantify sulfuric acid(H_2SO_4) + hydroiodic acid(HI) + water(H_2O) + iodine(I_2) without correction. CONSTITUTION: A quantification of H_2SO_4-HI-H_2O-I_2 solution comprises: a step of diluting _2SO_4-HI-H_2O-I_2 solution with I^- ionic solution; a step of mixing the diluted solution with H_2O and measuring H^+ concentration; a step of mixing with H_2O to adjust oxidation-reduction and measuring I_2 concentration; a step of collecting final diluted solution with H_2O to precipitate and measuring I^- concentration; and a step of quantifying I^-. The I^- ionic solution is KI solution or HI solution.
Abstract:
PURPOSE: A catalytic decomposition process of hydrogen iodide and a catalyst manufacturing method thereof are provide to decompose the hydrogen iodide by using a catalyst which is stable in a reaction condition of high temperature. CONSTITUTION: In an iodine - sulfur hydrogen manufacturing process, a catalyst decomposing hydrogen iodide is a silica catalyst containing platinum group metals. A manufacturing method of the silica catalyst includes the following steps: manufacturing silica sol by agitating an ammonia solution and heating TEOS/EtOH liquid(S1); mixing mphiphilic triblock copolymer(EO20PO70EO20, Mav=5,800, Aldrich) dissolved in a hydrochloric acid solution(S3); forming gel by mixing tetraammineplatinum(II) hydroxide(S4); and reducing the catalyst to hydrogen gas(S5).