国家/地区 中国（3）
IPC部 C（3）
IPC大类 C01（3）
IPC小类 C01B（3）
IPC C01B032/184（3）
发明人 LI Y（2） LIU H（2） RUAN H（2）
公开年 2021（3）
申请年 2021（2） 
专利权人 UNIV GUILIN TECHNOLOGY（3）

Preparation method of carbon foam material for electromagnetic wave absorption application, involves mixing mixed solution of paraffin wax and ferroferric oxide with aqueous dispersion of nanocellulose and graphene oxide, ultrasonically treating, freezing, and annealing composite foam.

HE Y, LONG Q, LIU H

Preparing graphene quantum dots involves taking citric acid as a raw material, dispersing citric acid with mass of 0-26.388g ionic liquid at room temperature to get dispersion liquid, and adding deionized water into dispersion liquid.

RUAN H, LI Y, LIANG J, PANG B, LIU H, ZHOU L

Preparation of graphene quantum dots, involves ultrasonically dispersing soybean powder in sodium hydroxide solution, transferring to reactor, placing reactor in oven, reacting, centrifuging, dialyzing, and filtering.

RUAN H, LI Y, XU X, LU S, LIAO W, OUYANG Y, CAO Z, CAI T, XIE X