Method for preparing carrier loaded Pt-Cu Nanocube catalyst
A technology of catalyst and carrier, applied in the field of preparation of Pt-Cu Nanocube catalyst, to achieve the effect of improving electrocatalytic performance and convenient and adjustable reaction system
Active Publication Date: 2015-05-06
南京东焱氢能源科技有限公司
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem to be solved in the present invention is to overcome the defects of the existing synchronous reduction method and provide a high-efficiency synthesis method for preparing Pt-Cu bimetallic nanocube by step reduction
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0022] A preparation method of a Pt-Cu Nanocube catalyst loaded with a carrier, the steps are:
[0023] (1) Add 0.5mmol CuCl 2 Dissolve in 70ml EG, and add 5mmol SLS, stir and heat to 120oC, while protecting with argon, then add 7.5mmol N 2 h 4 ·H 2 O, react for 1h, wash with alcohol and deionized water after cooling and centrifuge. The obtained Cu nanocube was ultrasonically dispersed into a certain amount of EG according to the proportioning dosage to prepare a 0.1 mol / L slurry.
[0024] (2) Take 0.3mmol H 2 PtCl 6 EG solution, added to 50ml EG, heated to 120 oC and protected by argon, then added dropwise 3ml prepared Cu nanocube slurry, stirred evenly, and ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a method for preparing a carrier loaded Pt-Cu Nanocube catalyst, belonging to the technical field of fuel cell and catalyst synthesis. The method comprises the following steps: (1) firstly reducing a Cu precursor by utilizing a stronger reducer in the presence of a surfactant, washing to obtain Cu Nanocube, and carrying out redispersion on the Cu Nanocube by utilizing an appropriate solvent; and (2) weighing a certain amount of Cu size obtained in the step (1) to be mixed with a Pt precursor, and reducing the mixture by utilizing a weaker reducer in the presence of the surfactant; and washing to obtain Pt-Cunanocubes, and then carrying out redispersion on the Pt-Cunanocubes by utilizing the appropriate solvent. The preparation method has the characteristics that reduction is carried out through substeps, different catalysts are adopted aiming at metal precursors at different reduction potentials, and compared with synchronous reduction, the synthesis efficiency of Pt-Cu double-metal nanocube and the success rate are greatly improved.
Description
technical field [0001] The invention relates to a preparation method of a Pt-Cu Nanocube catalyst, which belongs to the technical field of fuel cell and catalyst synthesis. Background technique [0002] Pt catalysts have been widely researched and applied as fuel cell catalysts. However, due to the high cost of the Pt catalyst, and its corrosive properties during the opening and closing of the fuel cell. More and more researchers have turned their targets to non-Pt or Pt alloy catalysts. In addition, the influence of different morphologies of catalysts on their catalytic performance has also been studied in depth. Pt-Cu nanocube has also been studied as a Pt alloy catalyst with specific morphology. [0003] For the synthesis of Pt-Cu Nanocube catalysts, synchronous reduction is mostly used, since most non-Pt metal precursors are difficult to reduce (such as Cu 2+ , Fe 2+ , Ni 2+ ), while the Pt precursor is relatively easy to reduce, and because the shape control requir...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/89B01J37/16H01M4/90
CPCY02E60/50
Inventor 雷一杰李彤顾军
Owner 南京东焱氢能源科技有限公司