国家/地区 中国（3）
IPC部 C（3）
IPC大类 C01（3）
IPC小类 C01G（3）
IPC C01G031/02（2）
发明人 ZHANG C（3）
公开年 2021（3）
申请年 2021（2） 
专利权人 HUNAN ZHONGX.（2）

Preparation of composite electrode of graphene-based bismuth oxyhalide nanoparticles for alkali metal ion battery, involves preparing graphene oxide solution, and preparing composite of bismuth oxyhalide nanoparticles and graphene oxide.

ZHANG C, XU Y

One-step pyrolysis and carbon infiltration reduction of ammonium metavanadate for extracting vanadium, preferably for preparing vanadium pentoxide, comprises pre-treatment, ball milling, uniformly mixing, vacuumizing, and heating to obtain vanadium trioxide.

ZHANG C

Preparing low-valent vanadium tail gas from ammonium metavanadate comprises e.g. heating and dissolving crude ammonium metavanadate in water, adding sodium hydroxide, generating ammonia gas, collecting, and adding aqueous ammonia.

ZHANG C