Graphene environmental footprint greatly reduced when derived from biomass waste via flash Joule heating

Chao Jia; Mingyue Pang; Yuanda Lu

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Graphene environmental footprint greatly reduced when derived from biomass waste via flash Joule heating

机译：Graphene environmental footprint greatly reduced when derived from biomass waste via flash Joule heating

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Graphene is widely applied in many important technologies,with demand projected to grow exponentially.Conventional graphene production approaches that use natural/artificial graphite are expensive and energy and chemical intensive,resulting in a significant environmental footprint.The recent flash Joule heating(FJH)technology that can produce flash graphene(FG)from carbon-rich waste materials has been proposed as a cleaner production process,but the quality of FG made from biomass waste via FJH and the overall sustain-ability of the process remain unclear.Here we conduct lab-scale experiments to fill these knowledge gaps.We show that biomass waste-derived FG shows excellent thermal and electrical conductivity,and the FJH process results in a more than 10-fold decrease in life-cycle environmental impacts including carbon emissions and freshwater use relative to the conventional approaches.The FJH process is also cost effective,with the biomass waste-derived FG being much cheaper than graphite-based graphene.Our study identifies circular and sustainable opportunities for future graphene production.

机译：石墨烯是广泛应用于许多重要技术,需求预计将增长指数增长。方法利用自然/人造石墨是昂贵的和能源和化学吗密集,导致显著的环境足迹。加热(FJH)技术可以产生闪光石墨烯(FG)富含碳的废料被建议作为一个清洁生产的过程,但是成品的质量由生物质通过FJH浪费和整体可持续发展的过程尚不清楚。实验来填补知识空白。生物质废弃物是FG显示优秀温度和电导率,FJH过程导致了超过10倍减少在生命周期环境影响包括碳排放和淡水使用相对传统的方法。也符合成本效益,生物量废弃物是FG便宜得多graphite-based石墨烯。循环和可持续的未来的机会石墨烯生产。

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来源
《One Earth》 |2022年第12期|1394-1403|共10页
作者
Chao Jia; Mingyue Pang; Yuanda Lu;
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作者单位

Shanghai Technical Service Platform for Pollution Control and Resource Utilization of Organic Wastes,Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3),Department of Environmental Science and Engineering,Fudan University,Shangh;

Key Laboratory of Three Gorges Reservoir Region's Eco-Environment,Ministry of Education,Chongqing University,Chongqing,China;

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正文语种英语
中图分类环境科学、安全科学;
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Graphene environmental footprint greatly reduced when derived from biomass waste via flash Joule heating

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