摘要
Ni/β-Mo2C是一种类铂的催化剂,作为微生物燃料电池(Microbial fuel cell,MFC)阳极催化剂时有很高的催化活性,可以高效催化氧化MFCs一般发酵产物,Ni/β-Mo2C作为MFC阳极材料在中性条件下对电池性能也有很大的提高。在此基础上,本研究以线性扫描伏安法(LSV)考察Ni/β-Mo2C对氧还原反应(ORR)的催化行为,并采用Ni/β-Mo2C作为双边催化剂构建MFC。结果表明,Ni/β-Mo2C对ORR有显著的催化作用,而且其催化效果随负载量增加而增强;当以肺炎克雷伯氏菌(L17)为产电微生物、2g/L葡萄糖为燃料,双边催化剂的载量为6.0mg/cm2Mo2C时,该MFC产电量相当于载0.5mg/cm2 Pt催化剂MFC产电量的78.3%。
Ni/β-Mo2C was explored as an anodic cathodic catalyst for microbial fuel cell （MFC） based on Klebsiella Pneumoniae （K. pneumoniae）. We had demonstrated that Mo2C as anodic electrocatalyst exhibits high electrocatalytic activity towards the oxidation of several common mi- crobial fermentation products under MFC conditions and thus provides the MFC with high per- formances, especially with large power output. In this paper, the electrochemical behavior of Ni/ β-Mo2C catalyzing ORR was studied by using linear scanning voltammetry （LSV）. It was demon- strated that Ni/β-Mo2C had a significant catalysis on ORR and the catalytic effect was enhanced while increasing load. Here we showed that Mo2C could serve as a high efficient and cheap anodic and cathodic catalyst of MFC.
出处
《电池工业》
CAS
2012年第6期371-374,共4页
Chinese Battery Industry
关键词
碳化镍钼
微生物燃料电池
催化剂
氧还原反应
Ni/β-Mo2C
microbial fuel cell
cathodic catalyst
oxygen reducing reaction.
