Biomass-derived sustainable hypergolic rocket propellants with hydrogen peroxide†

IF 9.2 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Green Chemistry Pub Date : 2025-05-01 DOI:10.1039/d5gc00255a

Ramlithin Mavila Chathoth , Charlie Oommen , Michael Gozin , Srinivas Dharavath , Manojkumar Jujam , Deepan Chowdhury , Jagadish Das

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引用次数: 0

Abstract

Sustainable fuels, derived from various renewable biological sources, are having a significant impact on land and marine transportation, as well as on aviation. However, in the case of the space sector, this advancement is limited. In an effort to prepare a sustainable rocket fuel (SRF) from readily available bioresources, herein we report for the first time the valorization of a widely available biomass – coconut husk into hypergolic composite fuel. We showed that the hypergolic reactions of various formulations of coconut husk-derived SRFs with a green oxidizer – H₂O₂ (95%) could be promoted with the addition of catalytic amounts of guanine-containing polymeric complexes of manganese or copper ( or ). It was found that the top-performing fuel formulation, with a total manganese content of just 2 wt%, showed an impressive ignition delay time below 50 ms. Mechanistic studies exploring the structure–ignition capability relationships of coconut husk-derived SRFs and and materials revealed that the nitrate content of coconut husk-derived SRFs and the metal–ligand cooperation in the and complexes played important roles in the ignition process of our novel SRF formulations.

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生物质衍生的可持续双氧水自燃火箭推进剂

来自各种可再生生物资源的可持续燃料正在对陆地和海洋运输以及航空产生重大影响。然而，就空间部门而言，这种进展是有限的。为了从现成的生物资源中制备可持续的火箭燃料（SRF），本文首次报道了一种广泛使用的生物质-椰子壳转化为自燃复合燃料。研究表明，不同配方的椰壳衍生SRFs与绿色氧化剂H2O2（95%）的自燃反应可以通过添加催化量的含锰或铜的鸟嘌呤聚合物配合物（Mn-GU或Cu-GU）来促进。结果发现，性能最好的燃料配方，总锰含量仅为2 wt%，显示出令人印象深刻的点火延迟时间低于50 ms。对椰壳衍生SRF与Mn-GU和Cu-GU材料结构-点火能力关系的机理研究表明，椰壳衍生SRF的硝酸盐含量以及Mn-GU和Cu-GU配合物中金属配体的配合作用在新型SRF配方的点火过程中起重要作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Green Chemistry 化学-化学综合

CiteScore

16.10

自引率

7.10%

发文量

677

审稿时长

1.4 months

期刊介绍： Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.