Unlock instant, AI-driven research and patent intelligence for your innovation.

Method using nano-porous metal to catalyze formic acid to decompose and desorb hydrogen

A nanoporous, metal-catalyzed technology, used in chemical instruments and methods, non-metallic elements, hydrogen, etc.

Inactive Publication Date: 2019-11-15
DALIAN UNIV OF TECH
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nanoporous gold (AuNPore) (Asao, N.; Ishikawa, Y.; Hatakeyama, N.; Menggenbateer; Yamamoto, Y.; Chen, M.; Zhang, W.; Inoue, A. Angew. Chem., Int. Ed.2010, 49, 10093) catalysts have the characteristics of high catalytic activity, stable structure, and convenient recycling, and have become the focus of research on nanoporous catalysts. However, the use of nanoporous gold in catalyzing the decomposition of formic acid to decompose hydrogen has not yet been patented. And literature reports, the present invention uses the nanoporous gold as a catalyst to catalyze the dehydrogenation of pure formic acid

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 more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Nanoporous metal gold catalyst (13mg, 0.066mmol), formic acid (1mL, 26.5mmol), triethylamine (1.47mL, 10.6mmol) were added to the V-shaped reactor, and when the temperature rose to 80 ° C, the reactor Put it into an oil bath, start stirring, and record the volume and time of the released gas at the same time, until no gas is released, and calculate the conversion rate of the catalytic reaction according to the amount of released gas. After 10 hours of reaction, a total of 1128 mL of gas was released, and the conversion rate was 95%. The molar concentration of the formic acid in the system is 10.73mol / L.

Embodiment 2

[0018] Nanoporous metal gold catalyst (13mg, 0.066mmol), formic acid (1mL, 26.5mmol), triethylamine (0.92mL, 6.625mmol) were added to the V-type reactor, and when the temperature rose to 90 ° C, the reactor Put it into an oil bath, start stirring, and record the volume and time of the released gas at the same time, until no gas is released, and calculate the conversion rate of the catalytic reaction according to the amount of released gas. After 6.5 hours of reaction, a total of 1119 mL of gas was released, and the conversion rate was 94.3%. The molar concentration of the formic acid in the system is 13.8mol / L.

Embodiment 3

[0020] Nanoporous metallic gold catalyst (15mg, 0.076mmol), formic acid (1mL, 26.5mmol), TEMED (0.5mL, 3.3mmol) were added to the V-shaped reactor, and when the temperature rose to 95°C, the reactor was put into In the oil bath, start stirring, and record the volume and time of the released gas at the same time, until no gas is released, and calculate the conversion rate of the catalytic reaction according to the amount of released gas. After 7.5 hours of reaction, a total of 1164 mL of gas was released, and the conversion rate was 98.1%. The molar concentration of the formic acid in the system is 17.67mol / L.

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

No PUM Login to View More

Abstract

The invention provides a method using a nano-porous metal to catalyze formic acid to decompose and desorb hydrogen, and belongs to the technical fields of chemical industry and two-phase catalysis. The method comprises the following steps: formic acid, the nano-porous metal catalyst and an organic amine are added into a V-shaped reactor at room temperature under pressure, then are heated and stirred, and are reacted at 80-110 DEG C for 2.5-10 h; and the volume of generated gas is recorded by a wet gas flow meter, and the conversion rate is calculated. The pure formic acid is reacted without being diluted into a formic acid solution, so the problem that most catalysts can only use the formic acid solution or high-concentration formic acid is solved; and method has a high catalysis efficiency, is simple, and provides a new idea for large-scale utilization of hydrogen energy.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and two-phase catalysis, and relates to two-phase catalyzed formic acid decomposition hydrogen release reaction, in particular to a method for using a nanoporous metal to catalyze formic acid decomposition hydrogen release. Background technique [0002] With the rapid growth of the total population of the earth, the consumption of non-renewable energy has increased sharply, which has caused serious impact on the environment. Therefore, seeking green and renewable energy has become an important challenge we face. Hydrogen energy has the characteristics of the only by-product being water and high combustion calorific value, which makes it attract the attention of researchers. However, due to the characteristics of hydrogen, such as flammability, explosiveness and low volume energy density, the storage and transportation of hydrogen are also facing a series of problems. Therefore, hydrogen...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/22
CPCC01B3/22C01B2203/0277C01B2203/1211
Inventor 包明吴友根冯秀娟王万辉王加升巴拉拉姆
Owner DALIAN UNIV OF TECH