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Sulfaquinoxaline cobalt compound with electric catalytic activity as well as preparation method and application thereof
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A technology of cobalt sulfaquinoxaline and cobalt sulfaquinoxaline, which is applied in the field of cobalt sulfaquinoxaline compounds and their preparation, can solve the problems of poor stability of semiconductor oxides, many by-products, and low catalytic activity, and achieve good electrocatalysis active effect
Inactive Publication Date: 2019-03-01
NINGBO UNIV
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Semiconductor oxides have relatively poor stability and low catalytic activity, and are still in the research and development stage; phthalocyanine and porphyrin macrocyclic conjugated complexes have good electrocatalytic activity due to their special macrocyclic conjugated structures. And it can be structurally adjustable by changing the substituent on its conjugated ring and the central metal atom and molecular aggregation mode, which endows it with a broad space for the development of electrocatalyst performance, and is one of the promising substitutes for platinum-based catalysts. One, but the preparation process of the catalyst is too complicated and there are many by-products
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Embodiment 1
[0021] Weigh CuCl 2 2H 2 O (0.17g, 1.0mmol), HL (0.54g, 2.0mmol), 4,4'-bipyridine (0.16g, 1.0mmol) were placed in a polytetrafluoroethylene-lined reaction kettle, and 4mL of water was added, Ethanol 8mL, DMF 1mL, sealed reaction kettle, placed in a blast thermostat, heated at 60°C for 72h, cooled to room temperature, separated by filtration to obtain red needle-like crystals.
Embodiment 2
[0023] Weigh Cu(NO 3 ) 2 ·3H 2 O (0.48g, 2.0mmol), HL (1.18g, 4.0mmol), 4,4'-bipyridine (0.31g, 2.0mmol) were placed in a polytetrafluoroethylene-lined reaction kettle, and 4mL of water was added, Ethanol 10mL, DMF 1mL, sealed reaction kettle, placed in a blast thermostat, heated at 90°C for 24h, cooled to room temperature, filtered and separated to obtain red needle-like crystals.
Embodiment 3
[0025] Weigh Cu(OAc) 2 ·H 2 O (0.40g, 2.0mmol), HL (1.18g, 4.0mmol), 4,4'-bipyridine (0.31g, 2.0mmol) were placed in a polytetrafluoroethylene-lined reaction kettle, and 4mL of water was added, Ethanol 9mL, DMF 1mL, sealed reaction kettle, placed in a blast thermostat, heated at 80°C for 48h, cooled to room temperature, filtered and separated to obtain red needle-like crystals.
[0026] The red needle-shaped crystals obtained in the above examples are tested and analyzed with an X-raysingle crystaldiffractometer, and it is confirmed that the red needle-shaped crystals are the described cobalt sulfaquinoxaline compound, and the coordination structure unit is as follows: figure 1 As shown, the one-dimensional chain structure is as figure 2 As shown, the three-dimensional network structure is as image 3 shown.
[0027] The obtained sulfaquinoxaline cobalt compound is carried out to H 2 o 2 Electrocatalytic performance test, the electrocatalytic activity response diagram...
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Abstract
The invention discloses a sulfaquinoxalinecobalt compound with electric catalytic activity as well as a preparation method and application thereof. The compound is a cobalt coordination compound withelectric catalytic activity, a molecular formula of the compound is C42H42N10O6S2Co, a crystalsystem is monoclinic, a space group is C2 / c, cell parameters are (shown in the description), alpha is equal to 90 degrees, beta is equal to 126.579 degrees, and gamma is 90 degrees, and a cobaltion is hesacoordinated octahedral geometric configuration. The compound is prepared by mixing and reacting acobalt salt, sulfaquinoxaline and 4,4'-bipyridine according to a given ratio, and the synthetic step is simple. The cobalt compound has good electric catalytic activity for hydrogenperoxide, so thatthe cobalt compound has wide application prospect as a potential electric catalytic active material.
Description
technical field [0001] The invention relates to the field of material chemistry, in particular to a sulfaquinoxaline cobalt compound with electrocatalytic activity and a preparation method and application thereof. Background technique [0002] The electrocatalytic reaction is a catalytic reaction that accelerates the charge transfer at the electrode-electrolyte interface. Electrocatalysis covers two aspects of electrode reaction and catalysis, so electrocatalytic materials must have these two functions at the same time: (1) be able to transfer electrons freely; (2) be able to effectively catalyze the activation of substrates. Electrocatalytic reactions are mainly used in fuel cells, electrocatalytic treatment of organic sewage, electrocatalytic degradation of chromium-containing wastewater, electrolytic desulfurization of flue gas and raw coal, and simultaneous removal of NO by electrocatalysis x and SO 2 , Electrolytic reduction of carbon dioxide, electrolytic reduction o...
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