Protocatechuic acid fuel cell: A sustainable energy generation system based on microbial metabolism of lignin-derived aromatic compounds
Protocatechuic acid fuel cell: A sustainable energy generation system based on microbial metabolism of lignin-derived aromatic compounds
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DOI：
10.1016/j.biombioe.2021.106254
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发表时间：
2021-10-01
影响因子：
6
通讯作者：
Ang, Lily Zuin Ping
中科院分区：
文献类型：
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作者：
Homma, Toshimasa;Tsurusaki, Yoshino;Ang, Lily Zuin Ping
安全性和经济性是与无处不在的电源相关联的燃料的基本属性。虽然抗坏血酸（阿萨）是一种安全的燃料，但它价格昂贵且容易失活。在此，我们提出原儿茶酸（PCA）作为一种新的安全燃料。我们的PCA燃料电池产生的最大功率输出为28.8 μ W/cm（2）-阳极，相当于阿萨燃料电池。此外，由于五氯苯甲醚可以从木质素中生产，而木质素在地球上十分丰富，因此预计五氯苯甲醚的成本会更低。在一项可行性研究中，通过微生物催化从木质素解聚的主要产物香草醛生产五氯苯甲醚。含有香草醛衍生的PCA（PCA（货车））的培养上清液也用作燃料。含有PCA的燃料电池（货车）表现出与含有PCA的燃料电池相当的性能，在7 d后保持初始最大功率输出的74%。这些结果突出表明，五氯苯甲醚适合作为普遍应用的燃料，并具有促进可持续增长的优势。
Safety and economic efficiency are essential properties of a fuel associated with a ubiquitous power supply. Although ascorbic acid (ASA) is a safe fuel, it is expensive and easily deactivated. Herein, we propose protocatechuic acid (PCA) as a new safe fuel. Our PCA fuel cell yields a maximum power output of 28.8 mu W/cm(2)-anode, comparable to that of an ASA fuel cell. Moreover, PCA is expected to be cheaper as it can be produced from lignin, which is abundant on Earth. In a feasibility study, PCA was produced from vanillin, a major product of lignin depolymerization, by microbial catalysis. The culture supernatant containing vanillin-derived PCA (PCA(van)) was also used as fuel. The fuel cell involving PCA(van), shows comparable performance to that with PCA, maintaining 74% of the initial maximum power output after 7 d. These results highlight the suitability of PCA as fuel for ubiquitous applications and its advantages for sustainable growth.