Polyacid-graphene composite material and preparation method and application thereof
A composite material and graphene technology, applied in the field of clean energy, can solve problems such as ultraviolet light pollution, and achieve the effects of high electrocatalytic activity, low overpotential, and good stability
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[0019] Example 1
[0020] Will polyacid [H 7 P 8 W 48 O 184 ] 33 - (P 8 W 48 ) (15mL, 1.6mM) and GO (15mL, 0.6mg mL -1 ) Was simultaneously dispersed and dissolved in sulfuric acid solution (pH = 1.0), and then electrolytic reduction was carried out at -0.65V vs. SCE potential to obtain 16-electron reduced polyacid (P 8 W 48 (16e - )), followed by P 8 W 48 (16e - ) Graphene (rGO) materials can be prepared by reducing GO. At the same time, P 8 W 48 (16e - ) Return to P 8 W 48 , And adsorbed on the surface of rGO, that is, polyacid and graphene composite material (P 8 W 48 / rGO).
Example Embodiment
[0021] Example 2
[0022] Will polyacid [H 7 P 8 W 48 O 184 ] 33 - (P 8 W 48 ) (15mL, 2mM) and GO (15mL, 0.6mg mL -1 ) Was simultaneously dispersed and dissolved in sulfuric acid solution (pH = 1.0), and then electrolytic reduction was carried out at -0.65V vs. SCE potential to obtain 16-electron reduced polyacid (P 8 W 48 (16e - )), followed by P 8 W 48 (16e - ) Graphene (rGO) materials can be prepared by reducing GO. At the same time, P 8 W 48 (16e - ) Return to P 8 W 48 , And adsorbed on the surface of rGO, that is, polyacid and graphene composite material (P 8 W 48 / rGO).
Example Embodiment
[0023] Example 3
[0024] Will polyacid [H 7 P 8 W 48 O 184 ] 33 - (P 8 W 48 ) (15mL, 2mM) and GO (15mL, 1.0mg mL -1 ) Was simultaneously dispersed and dissolved in sulfuric acid solution (pH = 1.0), and then electrolytic reduction was carried out at -0.65V vs. SCE potential to obtain 16-electron reduced polyacid (P 8 W 48 (16e - )), followed by P 8 W 48 (16e - ) Graphene (rGO) materials can be prepared by reducing GO. At the same time, P 8 W 48 (16e - ) Return to P 8 W 48 , And adsorbed on the surface of rGO, that is, polyacid and graphene composite material (P 8 W 48 / rGO).
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