【环球网综合报道】据法新社4月6日报道，美国工程师6日表示，他们已发现使用遭弃置的玉米壳与玉米杆制造廉价氢燃料的方法，这种燃料不会像化石燃料那样污染环境。

美国《国家科学院学报》的研究报告指出，弗吉尼亚理工与州立大学(Virginia Polytechnic Institute and State University)的研究团队取所得的这个最新进展可以节省时间和金钱，并同时生产零排放燃料，未来将可用于加速研发氢燃料汽车。研究报告共同作者、弗吉尼亚理工与州立大学生物系统工程部教授张以恒(Percival Zhang)说：“我们已经证明，往氢经济发展最重要的一步是利用生物资源来制造可分散且负担得起的绿能氢气。”其他的氢燃料生产方法依赖高度加工的糖，但弗吉尼亚理工与州立大学团队使用生物质玉米壳与叶柄的方法，不仅降低了生产成本，而且也让生产燃料也变得更简单。

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http://www.pnas.org/content/early/2015/04/01/1417719112.abstract

 

High yield hydrogen production from biomass by in vitro metabolic engineering: Mixed sugars coutilization and kinetic modeling

Significance

Hydrogen (H2) has great potential to be used to power passenger vehicles. One solution to these problems is to distribute and store renewable carbohydrate instead, converting it to hydrogen as required. In this work more than 10 purified enzymes were combined into artificial enzymatic pathways and a high yield from both glucose and xylose to hydrogen was achieved. Also, gaseous hydrogen can be separated from aqueous substrates easily, greatly decreasing product separation costs, and avoid reconcentrating sugar solutions. This study describes high yield enzymatic hydrogen production from biomass sugars and an engineered reaction rate increase achieved through the use of kinetic modeling. Distributed hydrogen production based on evenly distributed less-costly biomass could accelerate the implementation of the hydrogen economy.

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