Multi-family multi-element alloy/carbon nanotube catalytic material as well as preparation method and application thereof
A carbon nanotube and catalytic material technology, which is applied in the field of multi-family multi-element alloy/carbon nanotube catalytic materials and their preparation, can solve the problems that large-scale commercial applications cannot meet actual needs, and the cost of platinum is high, and achieves accelerated electron transfer, The preparation method is simple and the equipment requirements are not high.
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Embodiment 1
[0034] A preparation method of a multi-family multi-element alloy / carbon nanotube catalytic material of the present invention comprises the following steps:
[0035] (1) Pretreatment: put carbon nanotubes (CNTs) into concentrated acid (concentrated acid is a combination of concentrated sulfuric acid and concentrated nitric acid with a volume ratio of 3:1), stirring and soaking for 48h, and cleaning to obtain pretreated CNTs;
[0036] (2) Add 0.5 mL of concentrated HCl to 120 mL of deionized water, and use 10% H2 2 - Ar continuous purging, firstly add 0.06g of pretreated CNTs to it, after uniform dispersion, add MnCl to it in turn 2 ·4H 2 O(0.0242g), Cu(NO 3 ) 2 ·xH 2 O (0.096g), Al (NO 3 ) 3 ·9H 2 O (0.03g); the interval time for adding each substance is 5min, and the mixture is fully stirred to ensure that each salt is in a dissolved state. After the addition is completed, solution 1 is obtained.
[0037] (3) The easily hydrolyzed and insoluble metal salt is specifica...
Embodiment 2
[0050] A preparation method of a multi-family multi-element alloy / carbon nanotube catalytic material of the present invention comprises the following steps:
[0051] (1) Pretreatment: put carbon nanotubes (CNTs) into concentrated acid (concentrated acid is a combination of concentrated sulfuric acid and concentrated nitric acid with a volume ratio of 3:1), stirring and soaking for 48 hours, and cleaning to obtain pretreated CNTs;
[0052] (2) Add 0.5 mL of concentrated HCl to 120 mL of deionized water, and use 10% H2 2 - Ar continuous purging, firstly add 0.06g of pretreated CNTs to it, after uniform dispersion, add MnCl to it in turn 2 ·4H 2 O(0.0242g), Co(NO 3 ) 2 ·6H 2 O(0.0465g), NiCl 2 ·6H 2 O(0.0232g), Cu(NO 3 ) 2 ·xH 2 O (0.096g); the interval for adding each substance is 5 min, and stirring is sufficient to ensure that each salt is in a dissolved state, and after the addition is completed, solution 1 is obtained.
[0053] (3) The easily hydrolyzed and insolub...
Embodiment 3
[0067] A preparation method of a multi-family multi-element alloy / carbon nanotube catalytic material of the present invention comprises the following steps:
[0068] (1) Pretreatment: put carbon nanotubes (CNTs) into concentrated acid (concentrated acid is a combination of concentrated sulfuric acid and concentrated nitric acid with a volume ratio of 3:1), stirring and soaking for 48 hours, and cleaning to obtain pretreated CNTs;
[0069] (2) Add 0.5 mL of concentrated HCl to 120 mL of deionized water, and use 10% H2 2 - Ar continuous purging, firstly add 0.06g of pretreated CNTs to it, after uniform dispersion, add MnCl to it in turn 2 ·4H 2 O(0.0242g), Co(NO 3 ) 2 ·6H 2 O(0.0465g), NiCl 2 ·6H 2 O(0.0232g), Cu(NO 3 ) 2 ·xH 2 O(0.096g), Al(NO 3 ) 3 ·9H 2 O(0.03g), FeSO 4 ·7H 2 O (0.0222g); the interval for adding each substance is 5min, and stirring is sufficient to ensure that each salt is in a dissolved state, and after the addition is completed, solution 1 is ...
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