Method for preparing supported palladium catalyst electrode on basis of graphene-doped Nafion film modification
A palladium catalyst and graphene technology, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve problems such as difficult to remove, mutagenic, and toxic, and achieve stability, simple operation, The effect of enhancing the catalytic activity
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Embodiment 1
[0024] (1) Put the 2cm×2cm titanium mesh into 0.3mol / L sodium carbonate solution to soak and remove oil, boil in 0.1mol / L oxalic acid solution for 30min to remove surface oxide, and then rinse with double distilled water Clean and dry with nitrogen gas for later use;
[0025] (2) Get graphene to disperse in the isopropanol solution that mass concentration is 0.2% Nafion, graphene mass concentration 0.04%, ultrasonic dispersion 30min, the Graphene-Nafion dispersion liquid that makes uniform dispersion is standby;
[0026] (3) adopt the hydrochloric acid solution 100ml that every 1g palladium chloride corresponds to add 3mol / L and correspondingly add water and dilute to obtain the palladium chloride solution of 4g / L;
[0027] (4) Take 60 μL of the dispersion obtained in step (2), and evenly drop-coat it on the titanium mesh treated in step (1), and place it horizontally to dry naturally to prepare a Graphene-Nafion / Ti electrode. Depend on figure 1 It can be seen that graphene ...
Embodiment 2
[0031] (1) Put the 2cm×2cm titanium mesh into 0.3mol / L sodium carbonate solution to soak and remove oil, boil in 0.1mol / L oxalic acid solution for 30min to remove surface oxide, and then rinse with double distilled water Clean and dry with nitrogen gas for later use;
[0032] (2) Get graphene to disperse in the isopropanol solution that mass concentration is 0.2% Nafion, graphene mass concentration 0.06%, ultrasonic dispersion 30min, the Graphene-Nafion dispersion liquid that makes uniform dispersion is standby;
[0033] (3) adopt the hydrochloric acid solution 100ml that every 1g palladium chloride corresponds to add 3mol / L and correspondingly add water and dilute to obtain the palladium chloride solution of 4g / L;
[0034] (4) Take 60 μL of the dispersion obtained in step (2), and evenly drop-coat it on the titanium mesh treated in step (1), and place it horizontally to dry naturally to prepare a Graphene-Nafion / Ti electrode;
[0035] (5) The Graphene-Nafion / Ti electrode pre...
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