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DOI	10.1039/d0ee03659e
	Is direct seawater splitting economically meaningful?
	Hausmann J.N.; Schlögl R.; Menezes P.W.; Driess M.
发表日期	2021
ISSN	17545692
起始页码	3679
结束页码	3685
卷号	14 期号:7
英文摘要	Electrocatalytic water splitting is the key process for the formation of green fuels for energy transport and storage in a sustainable energy economy. Besides electricity, it requires water, an aspect that seldomly has been considered until recently. As freshwater is a limited resource (<1% of earth's water), lately, plentiful reports were published on direct seawater (around 96.5% of earth's water) splitting without or with additives (buffers or bases). Alternatively, the seawater can be split in two steps, where it is first purified by reverse osmosis and then split in a conventional water electrolyser. This quantitative analysis discusses the challenges of the direct usage of non-purified seawater. Further, herein, we compare the energy requirements and costs of seawater purification with those of conventional water splitting. We find that direct seawater splitting has substantial drawbacks compared to conventional water splitting and bears almost no advantage. In short, it is less promising than the two-step scenario, as the capital and operating costs of water purification are insignificant compared to those of electrolysis of pure water. © The Royal Society of Chemistry.
英文关键词	Additives; Fuel storage; Operating costs; Purification; Capital and operating costs; Electrocatalytic; Energy requirements; Energy transport; Sustainable energy; Water electrolyser; Water purification; Water splitting; Seawater; catalysis; electrokinesis; osmosis; purification; quantitative analysis; seawater
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190612
作者单位	Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135 Sekr. C2, Berlin, 10623, Germany; Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, 14195, Germany; Max Planck Institute for Chemical Energy Conversion, Mülheim an der Ruhr, 45470, Germany
推荐引用方式 GB/T 7714	Hausmann J.N.,Schlögl R.,Menezes P.W.,et al. Is direct seawater splitting economically meaningful?[J],2021,14(7).
APA	Hausmann J.N.,Schlögl R.,Menezes P.W.,&Driess M..(2021).Is direct seawater splitting economically meaningful?.Energy & Environmental Science,14(7).
MLA	Hausmann J.N.,et al."Is direct seawater splitting economically meaningful?".Energy & Environmental Science 14.7(2021).