Abstract:
The present invention intends to provide a diamond-coated silicon to be used in an industrially applicable diamond electrode. A diamond-coated silicon comprising a silicon substrate having a thickness of 500 mum or less is coated at least partially with electrically conductive diamond. The silicon substrate having a thickness of 500 mum or less is manufactured by the plate-like crystal growth process, and then the silicon substrate is coated with the electrically conductive diamond by the chemical vapor deposition process to manufacture the diamond-coated silicon. The diamond-coated silicon is flexible and can be stuck to an electrically conductive support substrate, and thereby a large area electrode and a three-dimensional electrode structure can be readily obtained.
Abstract:
The present invention intends to provide a diamond-coated silicon to be used in an industrially applicable diamond electrode. A diamond-coated silicon comprising a silicon substrate having a thickness of 500 mum or less is coated at least partially with electrically conductive diamond. The silicon substrate having a thickness of 500 mum or less is manufactured by the plate-like crystal growth process, and then the silicon substrate is coated with the electrically conductive diamond by the chemical vapor deposition process to manufacture the diamond-coated silicon. The diamond-coated silicon is flexible and can be stuck to an electrically conductive support substrate, and thereby a large area electrode and a three-dimensional electrode structure can be readily obtained.
Abstract:
The present invention intends to provide a diamond-coated silicon to be used in an industrially applicable diamond electrode. A diamond-coated silicon comprising a silicon substrate having a thickness of 500 mum or less is coated at least partially with electrically conductive diamond. The silicon substrate having a thickness of 500 mum or less is manufactured by the plate-like crystal growth process, and then the silicon substrate is coated with the electrically conductive diamond by the chemical vapor deposition process to manufacture the diamond-coated silicon. The diamond-coated silicon is flexible and can be stuck to an electrically conductive support substrate, and thereby a large area electrode and a three-dimensional electrode structure can be readily obtained.
Abstract:
An object of the present invention is to provide a process and an apparatus for treating an aqueous medium at low running costs with a decreased electricity required for hydrothermal electrolytic reaction. The present invention proposes a two-step process comprising a first step of performing a conventional hydrothermal reaction or a conventional electrolytic reaction prior to hydrothermal electrolytic reaction to degrade readily degradable substances or ammonia or various electrolytically degradable organics and then a second step of performing hydrothermal electrolytic reaction to degrade the remaining organics, whereby the electricity consumed by hydrothermal electrolytic reaction in the second step can be greatly reduced.
Abstract:
The present invention intends to provide a diamond-coated silicon to be used in an industrially applicable diamond electrode. A diamond-coated silicon comprising a silicon substrate having a thickness of 500 mum or less is coated at least partially with electrically conductive diamond. The silicon substrate having a thickness of 500 mum or less is manufactured by the plate-like crystal growth process, and then the silicon substrate is coated with the electrically conductive diamond by the chemical vapor deposition process to manufacture the diamond-coated silicon. The diamond-coated silicon is flexible and can be stuck to an electrically conductive support substrate, and thereby a large area electrode and a three-dimensional electrode structure can be readily obtained.
Abstract:
An object of the present invention is to provide a process and an apparatus for treating an aqueous medium at low running costs with a decreased electricity required for hydrothermal electrolytic reaction. The present invention proposes a two-step process comprising a first step of performing a conventional hydrothermal reaction or a conventional electrolytic reaction prior to hydrothermal electrolytic reaction to degrade readily degradable substances or ammonia or various electrolytically degradable organics and then a second step of performing hydrothermal electrolytic reaction to degrade the remaining organics, whereby the electricity consumed by hydrothermal electrolytic reaction in the second step can be greatly reduced.
Abstract:
A hydrothermal reaction is performed on an aqueous medium without adding an oxidizing agent, and then another hydrothermal reaction is performed in the presence of an oxidizing agent, thereby reducing a chemical oxygen demand of the aqueous medium. An apparatus for performing a hydrothermal reaction has a fluid inlet being capable of introducing an oxidizing agent in a fluid form during a hydrothermal reaction.
Abstract:
An object of the present invention is to provide a process and an apparatus for treating a gas containing reducible substances to efficiently degrade and remove the reducible substances. As a means to achieve this object, the present invention provides a process for treating a gas containing reducible substances by hydrothermal electrolysis, comprising supplying a gas containing reducible substances into a reactor charged with an aqueous medium containing a halide ion under application of a direct current at a temperature of 100 DEG C or more but the critical temperature of said aqueous medium or less and at a pressure that allows said aqueous medium to be kept in the liquid phase.
Abstract:
An object of the present invention is to provide a process and an apparatus for treating an aqueous medium at low running costs with a decreased electricity required for hydrothermal electrolytic reaction. The present invention proposes a two-step process comprising a first step of performing a conventional hydrothermal reaction or a conventional electrolytic reaction prior to hydrothermal electrolytic reaction to degrade readily degradable substances or ammonia or various electrolytically degradable organics and then a second step of performing hydrothermal electrolytic reaction to degrade the remaining organics, whereby the electricity consumed by hydrothermal electrolytic reaction in the second step can be greatly reduced.
Abstract:
A method and apparatus for simultaneously conducting a hydrothermal reaction and electrolysis in the presence of ions of a strong acid, such as halide ions. The apparatus comprises a reactor having a pair of electrodes inside. An oxidizing agent such as oxygen gas may be added. Even low-molecular compounds, e.g., acetic acid and ammonia, can be easily decomposed thereby.