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Hydrogen production catalyst, preparation and its uses

A catalyst and oxide carrier technology, applied in the fields of hydrogen production catalysts and reforming hydrogen production catalysts, can solve the problems of harsh conditions, many steps, complex catalyst preparation methods, etc., and achieve easy production, low production costs, and high resistance to sulfur poisoning. performance effect

Inactive Publication Date: 2006-06-21
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The catalyst preparation method described in the examples is complex, with many steps and harsh conditions, requiring an additional high-energy ball mill; specifically, the catalyst is prepared by high-energy ball milling, that is, an oxide carrier with a high surface area having oxygen ion conductivity and nano-Pt The metal particles are mixed and octadecenoic acid and ethylene glycol are added as dispersants and surfactants as stabilizers, then ground with a ball mill for 24 hours, dried, and calcined at 900°C-1000°C for 10-30 minutes to make the product

Method used

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  • Hydrogen production catalyst, preparation and its uses
  • Hydrogen production catalyst, preparation and its uses
  • Hydrogen production catalyst, preparation and its uses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of Pt / Ce 0.8 Gd 0.2 o 1.9 catalyst:

[0038] The first step: the chemical formula is Ce prepared by citric acid sol-gel method 0.8 Gd 0.2 o 1.9 composite oxides with oxygen ion conductivity. Take by weighing 12.08 grams of citric acid and 8.06 grams of ethylene glycol and add 200 milliliters of deionized water to form a solution, then weigh 19.97 grams of Ce(NO 3 ) 3 ·6H 2 O and 5.19 g of Gd(NO 3 ) 3 ·6H 2 Add O to the above solution one by one, stir at room temperature for 1 hour, then concentrate at 70-80°C under stirring until viscous colloid, the formed gel is dried at 110°C, and roasted in air at 500°C for 2 hours to obtain the oxide product. N 2 -The specific surface area measured by BET is 59m 2 / g. XRD analysis has a perovskite structure.

[0039] Step 2: Preparation of 2wt% Pt / Ce by incipient wetness impregnation 0.8 Gd 0.2 o 1.9 catalyst. Weigh out 0.53 g H 2 PtCl 6 ·6H 2 O was added to 30 milliliters of deionized water to for...

Embodiment 2

[0041] The first step: exactly the same as the first step in Example 1.

[0042] Step 2: Preparation of 0.5 wt% Pt / Ce by incipient wetness impregnation 0.8 Gd 0.2 o 1.9 Catalyst, weighed 0.13 g H 2 PtCl 6 ·6H 2 O was added to 30 ml of deionized water to form a solution, and 9.95 g of the oxide prepared in the first step of Example 1 was weighed and added to the above solution to obtain an incipient wetness impregnated catalyst precursor, which was dried and calcined at 800°C 0.5wt% Pt / Ce produced in 2 hours 0.8 Gd 0.2 o 1.9 Catalyst product, expressed as 0.5Pt / CGO-800, catalyst specific surface area is 40m 2 / g.

Embodiment 3

[0044] The first step: exactly the same as the first step in Example 1.

[0045] In the second step in the embodiment, the calcination temperature of the catalyst is 600°C, and the rest are the same as in Example 1. The catalyst is expressed as 2Pt / CGO-600, and the specific surface area of ​​the catalyst is 57m 2 / g.

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Abstract

The present invention relates to hydrogen producing catalyst, is especially reforming hydrogen-making catalyst and its preparation process and application in reforming hydrogen-making reaction, and belongs to the field of energy source and petrochemical technology. The hydrogen-making catalyst is oxide carrier with oxygen conducting property, Ce-containing compound oxide or CeO2, and active metal component. It is used in reforming hydrogen-making reaction. It has high activity, high selectivity, high sulfur toxin resistance, easy preparation and low cost.

Description

technical field [0001] The invention relates to a hydrogen production catalyst, in particular to a reforming hydrogen production catalyst using C1-C16 hydrocarbons as a raw material, and provides a preparation method of the hydrogen production catalyst and an application of the hydrogen production catalyst in a reforming hydrogen production reaction, It belongs to the technical field of energy and petrochemical catalytic materials and their manufacture. technical background [0002] h 2 -O 2 Proton exchange membrane fuel cell (PEMFC) is a high-efficiency and environmentally friendly technology, with the advantages of no pollutant emissions, high efficiency (40-60%), no noise, fast start-up, etc. It is widely used in electric vehicles, small mobile electronic devices, homes or hospitals There are huge market prospects in terms of backup power and so on. Since hydrogen storage technology is still far away from practical requirements, the research and de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01J37/02C01B3/40
CPCY02P20/52
Inventor 路勇陈金春薛青松杨建国刘月明何鸣元
Owner EAST CHINA NORMAL UNIV
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