Korea Institute of Energy Research

Guk Hyeon Kwon

Hee-Yeon Kim

Doo-won Seo

Bo-Yun Jang

Seong Ok Han

In-sub Han

Se-young Kim

Young-hoon Seong

Disclosed is a method of manufacturing carbonized fine cellulose, which enables the formation of carbonized nano-sized cellulose by subjecting cellulose to drying, carbonization, and pulverization by means of shock waves using ultrasonic waves and microbubbles, thus realizing mass producibility, making it possible to fabricate a carbonized nano-sized material having uniform quality, and reducing the manufacturing costs. The carbonized fine cellulose is in the form of a nano-sized uniform carbon powder, and can thus be utilized as a catalyst support in various forms, such as fuel cell electrodes, electrodes of energy storage devices such as supercapacitors or secondary batteries, catalyst supports for micro-nano hybrid reactors, etc.

Method of preparing minute carbonized cellulose and method of preparing catalyst support using the same

Disclosed is a method of forming a nitrogen-doped porous graphene envelope. The method of forming the nitrogen-doped porous graphene envelope includes dissolving a nitrogen precursor in an organic precursor and then vaporizing the resulting precursor to thus simultaneously synthesize the graphene envelope and perform nitrogen doping in a single step.

Method of forming nitrogen-doped porous graphene envelope

Growing community of inventors

Gyeongsangbuk-do, South Korea

Guk Hyeon Kwon