5 results about "Oxidation-Reduction Agent" patented technology

A method of operating an electrochemical cell including introducing an aqueous solution into the electrochemical cell, applying a current across an anode and a cathode to produce a product, monitoring the voltage, dissolved hydrogen, or a condition of the aqueous solution, and applying the current in a pulsed waveform responsive to one of the measured parameters is disclosed. An electrochemical system including an electrochemical cell including an anode and a cathode, a source of an aqueous solution having an outlet fluidly connectable to the electrochemical cell, a sensor for measuring a parameter, and a controller configured to cause the anode and the cathode to apply the current in a pulsed waveform responsive to the parameter measurement is disclosed. Methods of suppressing accumulation of hydrogen gas within the electrochemical cell are also disclosed. Methods of facilitating operation of an electrochemical cell are also disclosed.

The invention relates to a method for preparing 2-aryl-3-difluoromethyl benzothiophene by utilizing an electrochemical reaction. Specifically, the invention provides an electrochemical anodic oxidation cathode reduction characteristic instead of a traditional chemical oxidation reducing agent, sodium difluoromethanesulfinate is used as a difluoromethyl donor, and a difluoromethyl free radical is excited through electrochemical anodic oxidation, so that the difluoromethyl free radical is synthesized. The preparation of the target molecule 2-aryl-3-difluoromethyl benzothiophene is realized through intramolecular cyclization initiated by addition of free radicals to active alkyne. The method does not need to add an additional transition metal catalyst and a super-stoichiometric redox agent, has the advantages of mild reaction conditions, high product yield, good chemical selectivity and the like, better conforms to the purpose of green and sustainable development of the current society, and has a good industrial application prospect.

The invention belongs to the technical field of high-sulfur flue gas treatment, and particularly relates to a high-sulfur flue gas denitration and sulfur protection recycling method and application. The recycling method for denitration and sulfur protection of the high-sulfur flue gas comprises the following steps: carrying out denitration treatment on the high-sulfur flue gas and then carrying out acid making treatment; the denitration treatment comprises the following steps: carrying out spontaneous reaction denitration on the high-sulfur flue gas under a spontaneous reaction condition; the spontaneous reaction condition comprises constant temperature and micro pressure; wherein the constant temperature ranges from 180 DEG C to 450 DEG C; and the pressure of the micro pressure is 1.01 atm to 1.5 atm. According to the recycling method for denitration and sulfur protection of the high-sulfur flue gas, external oxidation / reducing agents such as ammonia and ozone are not introduced in the whole process, and the secondary pollution problems such as ammonium bisulfate blockage, ammonia escape and ozone leakage are avoided from the source.

The invention provides a lithium ion battery monomer, a lithium ion battery and a power utilization device. The lithium ion battery monomer comprises a positive pole piece, an isolating membrane and a negative pole piece, the isolating membrane is located between the positive pole piece and the negative pole piece, the isolating membrane comprises a base material and a coating located on the surface of the base material, and the coating comprises a redox agent. And the redox potential of the redox agent is between the positive potential and the negative potential of the lithium ion battery monomer at the charging upper limit. The coating containing the redox agent is arranged on the surface of the base material of the isolating membrane of the single lithium ion battery, and an oxidation product generated at the positive pole piece can be reduced at the isolating membrane through the redox agent, so that the amount of the oxidation product transferred to the negative pole piece can be reduced, the consumption of active lithium ions is reduced, and the service life of the lithium ion battery is prolonged. And the storage performance of the lithium ion battery is improved.

This application discloses a composition, an optoelectronic device, and a display device. The composition includes a semiconductor material and a first metal salt. The first metal salt includes a first metal element having at least two valence states, including a first valence state and a second valence state, wherein the first valence state is higher than the second valence state. The valence state of the first metal element in the first metal salt is the first valence state. The semiconductor material includes one or more of N-type metal oxides, P-type metal oxides, P-type organic compounds, and quantum dots. The first metal salt can act as a redox agent, effectively improving the phenomenon of semiconductor material being oxidized by activated oxygen, thereby improving the performance stability of the semiconductor material. The composition can be applied to optoelectronic devices, effectively improving the problem of aging and degradation of functional layers due to oxidation by activated oxygen, improving the electrical aging stability of optoelectronic devices, thereby improving the device life and reliability of optoelectronic devices.