Photoelectrochemical cells for the oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and/or 2,5-diformylfuran are provided. Also provided are methods of using the cells to carry out the electrochemical and photoelectrochemical oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and/or 2,5-diformylfuran.

A carbon dioxide reduction reaction electrocatalyst comprises a pyrolyzed copper-based metal-organic framework (MOF) that produces isopropanol from electrochemical reduction of carbon dioxide. A process for producing isopropanol from electrochemical reduction of carbon dioxide comprises applying a potential in an electrochemical cell in the range of about 2V to about 3V versus a silver chloride electrode.

The present invention relates to a graphite electrode and manufacturing process thereof, and a carbon dioxide generator, wherein the graphite electrode comprises the following in weight percentage: graphite powder 50%-90%; adhesive 10%-40%; first additive 1%-30%; second additive 0.1%-10%; wherein the adhesive comprises at least one of phenolic resin, bisphenol A epoxy resin and urea formaldehyde resin; the first additive is selected from at least one of the following: polylactic acid, carbonate, monosaccharide, oligosaccharide and polymethacrylates; the second additive is selected from at least one of the following: carbon black, carbon nanotubes, silicon carbide, boron nitride, silicon oxide, aluminium oxide, zinc oxide, iron oxide, titanium dioxide, calcium carbonate, stearic acid, zinc stearate and calcium stearate. The carbon dioxide concentration of the gas obtained by the electrolysis of the present invention reaches 10 v % or more, and the gas produced is stable in quantity.

This disclosure provides systems, methods, and apparatus related to copper nanoparticle structures for reduction of carbon dioxide to multicarbon products. In one aspect, a method includes providing a plurality of copper nanoparticles. The plurality of copper nanoparticles are deposited on a support. The plurality of copper nanoparticles are transformed to a plurality of copper structures during an operation in which carbon dioxide is reduced. The plurality of copper nanoparticles on the support are used as a working electrode in an electrochemical cell during the operation.

The present invention relates to a mosquito-killing illuminating lamp which comprises a casing and a control unit. The casing comprises an illuminating portion and a mosquito-killing portion. The illuminating portion is provided with illuminating components therein. An electrolysis carbon dioxide generating device and a fan are provided inside the mosquito-killing portion. The control unit controls operation of the illuminating components, the carbon dioxide generating device and the fan. The electrolysis carbon dioxide generating device comprises a box body and electrolysis components. The electrolysis components are provided inside the box body. An electrolyte solution is provided inside the box body. The box body is provided with a venting hole. The electrolysis components comprise a graphite electrode and a cathode plate. After conduction between the graphite electrode and the cathode plate, electrolysis is performed on the electrolyte solution to generate carbon dioxide.

The present disclosure relates to a method for preparing an ordered porous carbon materials with inexpensive carbon black. The method comprises: dispersing carbon black into a concentrated nitric acid to obtain a uniform dispersion; placing the dispersion in a reactor to perform a reaction by a one-step hydrothermal process; and washing and drying the reaction mixture to obtain an ordered porous carbon material in a honeycomb-like arrangement and rich in oxygen defects. The present disclosure also relates to an ordered porous carbon material prepared by the method, a method for electrocatalytically reducing carbon dioxide to formic acid under ambient temperature and atmospheric pressure by using the ordered porous carbon material, and a method for electrocatalytically reducing nitrogen to ammonia under ambient temperature and atmospheric pressure by using the ordered porous carbon material as a supported catalyst.

A mining method (10) by which graphitic ore is produced in a form that constitutes an appropriate feedstock for an electrolytic process (20) for the production of graphitic materials through exfoliation. The graphitic ore feedstock may be utilised directly as an electrode in the electrolytic process (20). Also disclosed is a graphitic feedstock for an electrolytic process for the production of graphitic material through exfoliation of that feedstock, wherein the feedstock is less than about 99% graphite (w/w) and of a sufficiently cohesive and conductive nature as to allow electrochemical exfoliation therethroughout without fracturing that might result in collapse of a significant portion of the feedstock or that may result in a loss of conductivity throughout a significant portion of the feedstock.

Improved electrochemical production of hydrogen peroxide is provided with a mesoporous carbon catalyst is both O- and N-doped. The resulting catalyst works pH-neutral solutions to enable applications such as environmental water treatment.

The invention relates to a method for producing a diamond electrode, which comprises the following steps: a) providing a main body (2) composed of silicon, the dimensions of which are greater than the dimensions of the diamond electrode (22) to be produced, b) etching at least one recess (10) into the surface of the main body (2), c) introducing predetermined breaking points (18) into the main body (2), d) coating the main body (2) with diamond, e) breaking the diamond electrode (22) out of the main body (2) along the predetermined breaking points (18).

Compositions comprising hydrogenated and dehydrogenated graphite comprising a plurality of flakes. At least one flake in ten has a size in excess of ten square micrometers. For example, the flakes can have an average thickness of 10 atomic layers or less.