摘要
文章采用浸渍法对活性炭进行了PbSO_4改性,并进行了SEM、EDS表征和相关的电化学测试。改性后活性炭表面PbSO_4晶体粒径在200~500 nm,浸渍液浓度越高,Pb元素含量越高,比电容越小,抑制析氢效果越好。PbSO_4改性硝酸和双氧水氧化的活性炭与改性未氧化的活性炭在形貌、电容、抑制析氢方面差别不大。
Activated carbon is modified by soaking method and characteristed by SEM, EDS and electrochemical test. PbSO_4 particles are 200~500 nm and distribute on the surface of activated carbon. The higher the concentration of the soaking solution, the higher Pb element in the modified activated carbon and the better effect on inhibition of hydrogen evolution. Compared with the activated carbon modified by Pb PbSO_4, the HNO_3 or H_2O_2 pretreatment activated carbon modified by Pb PbSO_4 make no differentce in morphology, capacitance and inhibition of hydrogen evolution.
出处
《广东化工》
CAS
2016年第17期1-2,19,共3页
Guangdong Chemical Industry
关键词
活性炭
PB含量
电容
析氢
activated carbon
Pb content
capacitance
hydrogen evolution
