A kind of preparation method and application of antimony-doped copper/cuprous oxide electrocatalytic material
A cuprous oxide and antimony doping technology, which is applied in electrodes, electrolytic components, electrolytic processes, etc., can solve the problems of cumbersome steps, insufficient research on new high-efficiency copper and its oxide composite materials, and long cycle time, so as to achieve rich synthesis and preparation Technology, the effect of broadening the application value
Active Publication Date: 2022-08-02
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology
[0005] The invention provides an antimony-doped copper@cuprous oxide electrocatalytic carbon dioxide reduction composite material and its synthesis method and application, which solves the current problem of insufficient research on new high-efficiency copper and its oxide composite materials
[0006] The present invention aims at a series of problems such as long period, cumbersome steps and poor catalytic performance of current chemical synthesis methods of copper and its oxide composite nanomaterials, and provides a method for synthesizing antimony-doped copper / cuprous oxide nanoparticle composite materials by one-step reduction method method
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Embodiment 1
[0036] Preparation of Antimony-Doped Copper / CuO Nanoparticles Composites
[0037] (1) Dissolve 10 mmol of anhydrous copper chloride powder in 100 mL of dilute hydrochloric acid solution (98 mL of deionized water, 2 mL of hydrochloric acid) to form solution A, and dissolve 0.25 mmol of antimony potassium tartrate powder in 100 mL of deionized water to form solution B.
[0038] (2) Dissolve 0.1 mol of sodium borohydride powder in 60 mL of deionized water at low temperature to form solution C. The solution B was quickly poured into the solution A, and the solution D was obtained by stirring at 0 °C for 2 h. Continuing to keep 0 °C constant, under vigorous stirring, the solution C was heated to 1 mL min -1 It was injected into solution C at a rate of 100 °C, aged for 9 h at this temperature, washed 3 times with absolute ethanol, deionized water, and acetone, and vacuum-dried at 60 °C for 8 h to obtain a typical antimony-doped copper / cuprous oxide. Nanoparticle loosely packed com...
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Abstract
The invention provides a preparation method and application of an antimony-doped copper / cuprous oxide electrocatalytic material. The composite material adopts a simple and controllable low-temperature co-reduction method to synthesize an antimony-doped copper / cuprous oxide composite material in one step. Its expression is Cu / Cu 2 O‑Sb belongs to the technical field of new energy nanomaterial synthesis. Anhydrous copper chloride and antimony potassium tartrate are used as copper source and antimony source, and sodium borohydride is used as reducing agent, and the one-step reduction process is completed by controlling the solution pH, sodium borohydride reduction rate, and the precursor amount of antimony potassium tartrate at low temperature. , to obtain antimony-doped copper / cuprous oxide nanoparticle composites. The synthesis method of the invention can solve the problems of complicated multi-step, poor uniformity and the like in the existing synthesis technology process, and enrich the further research and development of copper-based electrocatalytic materials. The material exhibits excellent electrocatalytic carbon dioxide reduction performance and is suitable for new energy development.
Description
technical field [0001] The invention belongs to the technical field of new energy nanomaterial synthesis and electrochemistry, and in particular relates to an antimony-doped copper / cuprous oxide electrocatalytic carbon dioxide reduction composite material and its synthesis and application. Background technique [0002] The consumption of fossil energy in industrial production and human life has made the problem of energy shortage increasingly intensified, and the accompanying carbon dioxide concentration has continued to rise, resulting in energy and environmental problems becoming two major problems that need to be solved urgently. As a green new energy technology for energy conversion and storage, electrocatalytic carbon dioxide reduction technology can make full use of sustainable secondary power and effectively convert carbon dioxide into valuable fuels or chemical raw materials, which is of great significance to the sustainable development of the carbon cycle. . Howeve...
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IPC IPC(8): C25B1/23C25B1/50C25B11/091
CPCC25B1/00
Inventor 鲁效庆陈红宇王兆杰魏淑贤刘思远
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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