Method for preparing biomass carbon loaded cobalt phosphide electrode material through one-step calcination

A biomass carbon and electrode material technology, applied in the preparation/purification of carbon, electrodes, phosphides, etc., can solve the problems of high energy consumption, complex process flow, high reaction temperature, high conductivity, simple industrial process, high purity effect

Active Publication Date: 2019-08-16
JIANGSU UNIV
View PDF12 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to be calcined in a secondary tube furnace, the process is complicated, the reaction temperature is high, and the energy consumption is high.

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
  • Method for preparing biomass carbon loaded cobalt phosphide electrode material through one-step calcination
  • Method for preparing biomass carbon loaded cobalt phosphide electrode material through one-step calcination
  • Method for preparing biomass carbon loaded cobalt phosphide electrode material through one-step calcination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 1g of ginkgo biloba powder, 1.5g of ammonium nitrate and 0.25g of cobalt nitrate and mix, add 12g of deionized water, ultrasonic for 1h, then place in a 40°C oven for 24h. Put the dried product at the end of the porcelain boat, weigh 1g of sodium hypophosphite at the front of the porcelain boat, half-wrap the porcelain boat with aluminum foil and place it in a nitrogen atmosphere tube furnace. Calcined at 300° C. for 1 h at a heating rate of 3° C. / min to obtain a black product. XRD patterns such as figure 1 As shown in middle a, the XRD curve conforms to the XRD standard card of cobalt phosphide (JCPDS NO.29-497 and JCPDS NO.32-306), indicating that biomass carbon-supported cobalt phosphide was successfully prepared; figure 2 As shown in a, cobalt phosphide is dispersed in the form of spherical particles on the biomass carbon.

Embodiment 2

[0032] Weigh 1g of ginkgo biloba powder, 1.5g of ammonium nitrate and 0.5g of cobalt nitrate and mix, add 12g of deionized water, ultrasonicate for 2h, and then place in a 75°C oven for 24h. Put the dried product at the end of the porcelain boat, weigh 2g of sodium hypophosphite at the front of the porcelain boat, half-wrap the porcelain boat with aluminum foil and place it in a nitrogen atmosphere tube furnace. Calcined at 500° C. for 3 h at a heating rate of 3° C. / min to obtain a black product. XRD patterns such as figure 1 As shown in middle b, the XRD curve conforms to the XRD standard card of cobalt phosphide (JCPDS NO.29-497 and JCPDS NO.32-306), indicating that biomass carbon-supported cobalt phosphide was successfully prepared; figure 2 As shown in b, cobalt phosphide is dispersed on the biomass carbon in a spherical shape.

Embodiment 3

[0034] Weigh 2g of ginkgo biloba powder, 3g of ammonium nitrate and 2g of cobalt nitrate and mix, add 24g of deionized water, ultrasonicate for 6h, then place in an oven at 80°C for 36h to dry. Put the dried product at the end of the porcelain boat, weigh 8g of sodium hypophosphite at the front of the porcelain boat, half-wrap the porcelain boat with aluminum foil and place it in a nitrogen atmosphere tube furnace. Calcined at 500° C. for 3 h at a heating rate of 3° C. / min to obtain a black product. XRD patterns such as figure 1 As shown in c, the XRD curve conforms to the XRD standard card of cobalt phosphide (JCPDS NO.29-497 and JCPDS NO.32-306), indicating that biomass carbon-supported cobalt phosphide was successfully prepared; figure 2 As shown in c, cobalt phosphide is dispersed in the form of spherical particles on the biomass carbon.

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 belongs to the technical field of nano material preparation, and discloses a method for preparing a biomass carbon loaded cobalt phosphide electrode material through one-step calcination. Ginkgo leaves are used as a biomass carbon source, and cobalt nitrate, ammonium nitrate and sodium hypophosphite are used as raw materials, wherein the mass ratio of the ginkgo leaves, the ammoniumnitrate, the cobalt nitrate, the deionized water and the sodium hypophosphite is (1-2):(1.5-3):(0.25-2):(12-24):(1-8). According to the reaction principle, a calcination reaction is carried out in a tubular furnace, and the content of a carbon source, ammonium nitrate, cobalt nitrate and sodium hypophosphite, the reaction temperature and other variables are adjusted, so that the biomass carbon loaded cobalt phosphide electrode material is prepared. The method is simple to operate, low in reaction temperature and low in energy consumption. The prepared cobalt phosphide particles are good in dispersity on biomass carbon, uniform in size and high in stability. The biomass carbon loaded cobalt phosphide nano-composite electrode material is applied to electrocatalytic water hydrogen desorptionreaction and oxygen evolution reaction, has excellent electrochemical performance and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of preparation of nanometer materials, and relates to a method for preparing cobalt phosphide electrode materials supported by biomass carbon by a one-step calcination method, which is used for electrocatalyzed water analysis hydrogen reaction and oxygen evolution reaction. Background technique [0002] With the development of the economy, the rapid consumption of oil and natural gas has led to increasingly prominent environmental problems. Energy development and environmental protection have become two important issues facing the development of human society. Finding an environmentally friendly new energy source to replace petroleum or other fuels has become an urgent problem for human beings. Hydrogen energy has the advantages of abundant raw material reserves, high calorific value, no pollution, and sustainable development, and has become the clean energy with the most development potential in today's soc...

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
IPC IPC(8): C01B32/05C01B25/08C25B1/04C25B11/06
CPCC01B32/05C01B25/08C25B1/04C25B11/04C01P2004/80Y02E60/36
Inventor 傅小奇杨艳芳郑磊之林长青邵梦林
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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