Prep. of high-load bi-and multi-component precious metallic catalyst
A precious metal catalyst and loading capacity technology, which is applied in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, chemical instruments and methods, etc. Ideal, high carrier specific surface area and other issues, to achieve the effect of improving metal utilization, reducing preparation costs, and high metal utilization
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0043] Example 1: Preparation of PtRu / C (30PtRu%, Pt / Ru=1) electrode catalyst
[0044] Activated carbon XC-72R was pre-treated with 5mol / L nitric acid solution, dried at 200°C for 4 hours, weighed 5 grams, and dispersed with 400 ml of ethylene glycol ultrasonically for 30 minutes to prepare carbon slurry. 3.9 grams of chloroplatinic acid (containing 1.44 grams of platinum) and 1.94 grams of ruthenium trichloride (containing 0.72 grams of ruthenium) were dissolved in 50 milliliters of deionized water to prepare a platinum ruthenium mixed solution. After ultrasonic vibration for 20 minutes, it was transferred to the carbon slurry. After argon deoxygenation and stirring for 4 hours, add 50 ml of 1 mol / L sodium hydroxide / ethylene glycol solution, continue to stir for 4 hours, then raise the temperature to 185°C for 4 hours, then lower the temperature to 25°C, adjust with dilute hydrochloric acid solution The pH value reaches 3, after stirring for 3 hours, filter. The filter cake was v...
Example Embodiment
[0045] Example 2: Preparation of PtRu / C (60PtRu%, Pt / Ru=1) anode catalyst
[0046] Activated carbon XC-72R is pre-treated with 5mol / L nitric acid solution, dried at 200°C for 4 hours, weighed 2 grams, and 150 ml of ethylene glycol aqueous solution (ethylene glycol content is 95%) ultrasonically shaken and dispersed for 30 minutes to prepare carbon slurry . Measure 40 ml of chloroplatinic acid / ethylene glycol solution (50 mg platinum / ml), measure 25 ml of ruthenium trichloride aqueous solution (40 mg ruthenium / ml) and mix, ultrasonically shake for 20 minutes and add dropwise to the carbon slurry. After argon deoxygenation and stirring for 4 hours, add 15 ml of 1.5 mol / L sodium hydroxide / ethylene glycol solution dropwise, continue stirring for 4 hours, and then raise the temperature to 180°C for 4 hours, then lower the temperature to 25°C, use 1.5 moles Adjust the pH to 2.5 per liter of dilute hydrochloric acid solution. After stirring for 6 hours, filter, the filtrate is clear and ...
Example Embodiment
[0047] Example 3: Preparation of PtRu / C (90PtRu%, Pt / Ru=1) catalyst
[0048] Activated carbon XC-72R was pre-treated with 5mol / L nitric acid solution, dried at 200°C for 4 hours, weighed out 1 gram and dispersed with 60 ml of ethylene glycol ultrasonically for 30 minutes to prepare carbon slurry. Measure 120 ml of chloroplatinic acid / ethylene glycol solution (50 mg platinum / ml), measure 60 ml of ruthenium trichloride / ethylene glycol (50 mg ruthenium / ml) and mix, ultrasonically shake for 50 minutes and mix with carbon slurry After argon deoxygenation and stirring for 10 hours, add 10 ml of 2.5 mol / L sodium hydroxide aqueous solution dropwise, continue to stir for 5 hours and then raise the temperature to 180°C for 6 hours, then lower the temperature to 25°C, use 1.5 mol / L Adjust the pH value of the dilute hydrochloric acid solution to 2.5, stir for 5 hours, filter, and the filtrate is clear and transparent. The solid was vacuum dried at 70°C for 8 hours to obtain a 90Pt+Ru% catalys...
PUM
Property | Measurement | Unit |
---|---|---|
Size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap