Passion fruit shell based porous carbon material as well as preparation method and application thereof

A technology of porous carbon material and passion fruit, applied in the field of porous materials, can solve the problem of low specific surface area of ​​porous carbon materials, achieve good cycle stability and rate performance, improve comprehensive utilization rate, and improve performance.

Inactive Publication Date: 2017-11-03
GUILIN UNIV OF ELECTRONIC TECH
View PDF2 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the specific surface area of ​​the prepared porous carbon material is low, and the specific capacity d

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
  • Passion fruit shell based porous carbon material as well as preparation method and application thereof
  • Passion fruit shell based porous carbon material as well as preparation method and application thereof
  • Passion fruit shell based porous carbon material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0041] Step 1) Low-temperature carbonization of passion fruit shells, wash the passion fruit shells, cut them into square particles of about 1 cm, dry them, and then place them in a muffle furnace for low-temperature carbonization at 300°C for 2 hours, then filter the product, Washing, drying, and grinding to obtain the passion fruit shell-based carbon material;

[0042] Step 2) Activation of the passion fruit shell-based carbon material, mix the obtained sample with semicarbazide and KOH at a mass ratio of 2.0:1.0:6.0, put it into 50 ml deionized water and stir it thoroughly, dry it and put it under the protection of nitrogen Calcined at 800°C for 2 hours to obtain nitrogen-doped modified passion fruit shell-based carbon materials;

[0043] Step 3) post-treatment of nitrogen-doped modified passion fruit shell-based carbon material, soak the above product in 1M HCl solution, wash with deionized water, filter to neutrality, dry and grind to obtain passion fruit shell-based por...

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 discloses a passion fruit shell based porous carbon material. The passion fruit shell based porous carbon material is prepared by carrying out low-temperature carbonization treatment on passion fruit shells, mixing the passion fruit shells with a nitrogen-containing compound and calcining and activating a mixture by adopting an alkaline inorganic matter; a specific surface area range is 1500m<2>g<-1> to 2603m<2>g<-1>, the pore diameter distribution is uniform and pores are distributed in a range of 1.80nm to 2.40nm. A preparation method of the passion fruit shell based porous carbon material comprises the following steps: step 1) carrying out low-temperature carbonization on the passion fruit shells; step 2) activating a passion fruit shell based carbon material; step 3) carrying out post-treatment on the passion fruit shell based carbon material. The passion fruit shell based porous carbon material is used as an electrode material of a supercapacitor; when the current density is 0.5Ag<-1>, a specific capacitance value range is 261Fg<-1> to 347Fg<-1>. According to the passion fruit shell based porous carbon material, the passion fruit shells are used as a carbon source so that the comprehensive utilization rate of passion fruit shell resources is improved and a product with high-addition value is obtained. The material has good supercapacitor performance, such as good cycling stability and rate performance, and has a wide application prospect in the fields of energy storage and conversion.

Description

technical field [0001] The invention relates to the technical field of porous materials, in particular to a passion fruit shell-based multistructured carbon material and a preparation method and application thereof. Background technique [0002] As a new type of high-efficiency energy storage device, supercapacitors have a series of advantages such as high power density, long cycle life, high charge and discharge efficiency, maintenance-free, energy saving and environmental protection, etc. It has been applied in many fields. At present, there are three main categories of electrode materials used in supercapacitors: carbon-based materials, metal oxides, and conductive polymers. Porous carbon materials in carbon-based materials are currently the most widely used type of electrode materials. Due to their good physical and chemical properties, such as large specific surface area, controllable pore structure, stable chemical properties, high thermal conductivity, high electrica...

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): C01B32/324
CPCC01P2004/03C01P2006/12C01P2006/17C01P2006/40
Inventor 褚海亮邵春风邱树君王杨领覃梅蒙雨湘宁安裕伍桂明邹勇进向翠丽孙立贤徐芬
Owner GUILIN UNIV OF ELECTRONIC TECH
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