Kuralkar Mayuri, Ingle Avinash, Gaikwad Swapnil, Gade Aniket, Rai Mahendra
Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati 444 602, Maharashtra, India.
Department of Biology, Utah State University, Logan, UT 84322, USA.
IET Nanobiotechnol. 2015 Apr;9(2):66-70. doi: 10.1049/iet-nbt.2014.0004.
The authors report the biosynthesis of gold nanoparticles (Au-NPs) using plant pathogenic Phoma glomerata (MTCC 2210). The synthesis of nanoparticles was characterised by visual observation followed UV-visible spectrophotometric analysis, Fourier transform infrared spectroscopy and nanoparticle tracking analysis. Later, direct methanol fuel cell (DMFC) was constructed using two chambers (anodic chamber and cathodic chamber). These Au-NPs as catalysts have various advantages over the other catalysts that are used in the DMFC. Most importantly, it is cheaper as compared with other catalysts like platinum, and showed higher catalytic activity because of its effective surface structure. Being nano in size, it provides more surface area for the attachment of reactant molecules (methanol molecules). The DMFC catalysed by Au-NPs are found to be suitable to replace lithium ion battery technology in consumer electronics like cell phones, laptops and so on due to the fact that they can produce a high amount of energy in a small space. As long as fuel and air are supplied to the DMFC, it will continue to produce power, so it does not need to be recharged. The use of Au-NPs as catalyst in DMFC has not been reported in the past; it is reported here the first time.
作者报道了利用植物病原菌球茎点霉（MTCC 2210）生物合成金纳米颗粒（Au-NPs）。通过肉眼观察，随后进行紫外可见分光光度分析、傅里叶变换红外光谱和纳米颗粒跟踪分析对纳米颗粒的合成进行了表征。之后，使用两个腔室（阳极腔室和阴极腔室）构建了直接甲醇燃料电池（DMFC）。这些作为催化剂的Au-NPs相较于DMFC中使用的其他催化剂具有多种优势。最重要的是，与铂等其他催化剂相比，它成本更低，并且由于其有效的表面结构而表现出更高的催化活性。因其尺寸为纳米级，为反应物分子（甲醇分子）的附着提供了更大的表面积。发现由Au-NPs催化的DMFC适合在手机、笔记本电脑等消费电子产品中替代锂离子电池技术，因为它们可以在小空间内产生大量能量。只要向DMFC供应燃料和空气，它就会持续发电，因此无需充电。过去尚未报道过将Au-NPs用作DMFC中的催化剂；本文首次进行了报道。
