摘要
利用原位红外光谱证实了当NaClO4作为支持电解质时,在铂电极上水对甲醇电氧化途径有着重要影响.纯的无水甲醇电氧化时没有CO生成,只有当水的质量分数超过60%时,CO作为甲醇电氧化的中间体的可能性才较大,同时生成CO2的量也增大.本文试图利用SPAIRS（single potential alteration infrared
The electroxidation mechanism of methanol at gold electrode with different sup-porting electrolytes in anhydrous methanol was investigated using In situ FTIR spec-troscopy. It has been proved that the electroxidation pathway and products are dif-ferent for different supporting electrolytes. When NaOH was used as supporting elec-trolyte, the electroxidation products are HCOOCH_3 and HCOO^- ion; moreover, therelative quantities of HCOOCH_3 and HCOO^- produced are affected by tbe concentra-tion of NaOH. When NaClO_4 and TBABF_4 are used as supporting electrolyte, HCOOCH_3and CH_3OCH_2OCH_3 will be the only products.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1992年第5期707-711,共5页
Acta Physico-Chimica Sinica
关键词
甲醇
电氧化
金电极
支持电解质
Methanol
Electroxidation
Gold electrode
In situ FTIR spectroscopy
