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

Catalyst and device for producing high-purity hydrogen by electrocatalytic water vapor shift reaction

A water-vapor shift and electrocatalysis technology, applied in the field of energy chemistry, to achieve the effects of high energy efficiency, mild reaction conditions and high stability

Active Publication Date: 2021-01-22
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, direct production of high-purity H under mild conditions 2 Important research significance, but also extremely challenging

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalyst and device for producing high-purity hydrogen by electrocatalytic water vapor shift reaction
  • Catalyst and device for producing high-purity hydrogen by electrocatalytic water vapor shift reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Dissolve 2 mL of 0.1 M chloroplatinic acid aqueous solution at 25 °C in 100 μL min -1 Add it dropwise to the ethanol and water dispersion containing 100mg graphene, dip and stir at 30°C until dry to obtain a solid powder; then place the obtained solid powder in a tube furnace, heat up to 400°C, at 50°C %H 2 / Ar atmosphere at 60mL min -1 Treat at the flow rate for 4 hours, cool down to 30 °C, switch to 10% O 2 / Ar atmosphere, treated for 12 hours to obtain the metal-supported anode catalyst Pt@graphene.

Embodiment 2

[0021] Dissolve 5 mL of 0.3M chloroauric acid aqueous solution at 50°C in 200 μL min -1 Add it dropwise to methanol and water dispersion containing 300mg of molybdenum carbide, dip and stir at 50°C until dry to obtain a solid powder; then place the obtained solid powder in a tube furnace, raise the temperature to 300°C, and heat up at 80°C %H 2 / Ar atmosphere at 100mL min -1 Treat at the flow rate for 2 hours, cool down to 50 °C, switch to 2% O 2 / Ar atmosphere, and treated for 10 hours, the metal-supported anode catalyst Au@MoC was obtained.

Embodiment 3

[0023] Dissolve 20 mL of 0.01M ferric nitrate aqueous solution at 25°C in 100 μL min -1 Add dropwise at a speed of 200mg nitrogen-doped XC-72R in ethylene glycol and water dispersion, dip and stir at 25°C until dry to obtain a solid powder; then place the obtained solid powder in a tube furnace and heat up to 500°C at 40% H 2 / Ar atmosphere at 50mL min -1Treat at the flow rate for 8 hours, cool down to 25 °C, switch to 1% O 2 / Ar atmosphere, treated for 24 hours to obtain a metal-supported anode catalyst Fe@N-XC-72R.

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 relates to the application of a catalyst and a device in the reaction of preparing high-purity hydrogen by electrocatalytic water vapor shift reaction. The application of the catalyst and the device realizes the process of converting carbon monoxide and water into hydrogen and carbon dioxide under normal temperature and pressure conditions, and the purity of the cathode product hydrogen is as high as 99.99% without separation. The method has mild reaction conditions, complete separation of anion and anode products, high purity of hydrogen obtained without further separation, and high energy efficiency of the entire reaction.

Description

technical field [0001] The invention relates to an anode catalyst for preparing high-purity hydrogen by electrocatalytic water vapor shift reaction and a device thereof, belonging to the field of energy chemistry, in particular to the preparation of hydrogen energy. Background technique [0002] The water vapor shift reaction is carbon monoxide (CO) and water (H 2 O) reacts to form hydrogen gas (H 2 ) and carbon dioxide (CO 2 ) process, which is often applied in the hydrogen production industry and ammonia synthesis industry using coal, oil and natural gas as raw materials (J.A.Rodriguez, S.D. Senanayake et al. Accounts. Chem. Res., 47, 773 (2014)). In addition, the water vapor shift reaction is also often used for H 2 Removal of small amounts of CO in products (C. Ratnasamy, J.P. Wagner. Catal. Rev., 51, 325 (2009)). From a thermodynamic point of view, the water vapor shift reaction is an exothermic reaction, and low temperature is more conducive to the conversion of CO...

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 Patents(China)
IPC IPC(8): C25B11/052C25B11/091C25B1/042C25B9/19
CPCC25B1/02C25B9/19C25B11/091Y02E60/36
Inventor 邓德会崔晓菊陈瑞雪苏海燕于良包信和
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI