US 12,339,181 B2
Miniature graphene aerogel device and preparation method thereof
Zhen Xu, Hangzhou (CN); Kai Pang, Hangzhou (CN); Chao Gao, Hangzhou (CN); and Xiaoting Liu, Hangzhou (CN)
Assigned to ZHEJIANG UNIVERSITY, Hangzhou (CN)
Filed by ZHEJIANG UNIVERSITY, Hangzhou (CN)
Filed on Jan. 24, 2022, as Appl. No. 17/583,123.
Application 17/583,123 is a continuation of application No. PCT/CN2020/078909, filed on Mar. 12, 2020.
Prior Publication US 2022/0146339 A1, May 12, 2022
Int. Cl. G01L 1/18 (2006.01); C01B 32/198 (2017.01); G01L 1/16 (2006.01); H10N 30/084 (2023.01); H10N 30/85 (2023.01)
CPC G01L 1/183 (2013.01) [C01B 32/198 (2017.08); G01L 1/162 (2013.01); H10N 30/85 (2023.02); H10N 30/084 (2023.02)] 5 Claims
OG exemplary drawing
 
1. A method for preparing a miniature graphene aerogel device having a miniature graphene aerogel unit, the method comprising:
printing on a substrate of a device with a graphene oxide solution as an ink;
dripping a polar solution containing a foaming agent after solidifying to plasticize and foam the graphene oxide; and
drying and reducing to obtain a miniature graphene aerogel unit on the substrate of the device,
wherein the foaming agent comprises a self-foaming agent or a reactive foaming agent, wherein the reactive foaming agent is a foaming agent that reacts with an oxygen-containing functional group of graphene oxide to produce a gas, and the self-foaming agent is a foaming agent that decomposes to produce a gas; and
wherein the reactive foaming agent comprises a borohydride; and the self-foaming agent comprises a bicarbonate.