A Porous Coni-coated Carbon Microtube H2O2 Electrooxidation Electrode Prepared by Chicory Cauliflower Template
A chicory cauliflower, H2O2 technology, applied in battery electrodes, electrochemical generators, circuits, etc., can solve the problems of large concentration polarization, reduced H2O2 utilization rate, and slow H2O2 electrooxidation rate, so as to improve utilization rate, The effect of reducing escape and enhancing electron conductivity
Active Publication Date: 2022-06-21
黑龙江诺康石墨新材料科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a method for electrooxidizing H2O2 by porous CoNi-coated carbon microtubes prepared by chicory cauliflower template, which makes up for the shortcomings of slow electrooxidation rate of H2O2 and large concentration polarization, and solves the problem of self-decomposition reaction to generate O2 Escaping from the electrode surface leads to problems such as reduced utilization of H2O2
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[0011] The present invention will be further described in detail below in conjunction with specific embodiments.
[0012] A porous CoNi-coated carbon microtube H2O2 electro-oxidation electrode prepared by a chicory cauliflower template, the chicory cauliflower was washed several times with acetone and deionized water to remove impurities, and dried at 60°C for use. 1 g of chicory cauliflower was soaked in NaClO2 (1wt%) aqueous solution, boiled at 80°C for 10 hours, filtered with suction, and dried. Weigh 0.3mmol Co(NO3)2·6H2O(0.087g) and 0.6mmol Ni(NO3)2·6H2O(0.174g) and dissolve them in 30ml deionized water. Soak 0.5 g of the treated chicory cauliflower in the above solution, stir at room temperature for 6 hours, and then put it in an 80°C oven until the solvent is completely evaporated (about 24 hours) to obtain a CoNi microtube precursor. The impregnated and dried precursor was placed in a crucible, and then calcined at 900° C. for 2 hours in an argon atmosphere to finally...
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Abstract
The invention provides a porous CoNi-coated carbon microtube H2O2 electro-oxidation electrode prepared by a chicory cauliflower template. The chicory cauliflower is washed several times with acetone and deionized water to remove impurities and dried for use; the chicory cauliflower is soaked Boil in NaClO2 aqueous solution at 80°C for 10 hours, suction filter and dry; weigh Co(NO3)2 6H2O and Ni(NO3)2 6H2O and dissolve in deionized water; soak the treated chicory cauliflower in the above solution , stirred at room temperature for 6 hours, and then placed in an oven until the solvent evaporated completely to obtain a CoNi microtube precursor; the impregnated and dried precursor was placed in a crucible, and then calcined under an argon atmosphere to obtain a porous CoNi-coated carbon Microtubular H2O2 electro-oxidation electrode. The invention makes up for the shortcomings of slow electrooxidation rate of H2O2 and large concentration polarization, and solves the problems such as the reduction of the utilization rate of H2O2 caused by O2 generated by self-decomposition reaction escaping from the electrode surface.
Description
technical field [0001] The invention relates to an electro-oxidation electrode, in particular to a porous CoNi-coated carbon microtube H2O2 electro-oxidation electrode prepared from a chicory cauliflower template. Background technique [0002] H2O2 can not only be used as the oxidant of the battery, but also can undergo electrochemical oxidation reaction and be oxidized to generate oxygen, which can be directly used as the battery fuel by utilizing its characteristics of energy storage. As a liquid fuel and oxidant, hydrogen peroxide (H2O2) greatly solves the problems in the storage and transportation of raw materials required by fuel cells. Therefore, the direct hydrogen peroxide fuel cell has great development prospects as a new type of fuel cell. Compared with other types of direct liquid fuel cells such as direct sodium borohydride fuel cells, DPPFC also has the following advantages: ① Since both oxidant and fuel are H2O2, there is no "penetration" phenomenon, that is, ...
Claims
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IPC IPC(8): H01M4/90H01M4/88H01M8/1009
CPCH01M4/9083H01M4/90H01M4/8882H01M4/8885H01M8/1009Y02E60/50
Inventor 王贵领尹宪志宋聪颖朱凯叶克闫俊曹殿学
Owner 黑龙江诺康石墨新材料科技有限公司