Enhancing the selectivity of hydrocarbons during the Kolbe electrolysis of biomass-derived short-chain carboxylic acids by anionic surfactants

doi:10.1039/d1se02067f

GIEC OpenIR

	Enhancing the selectivity of hydrocarbons during the Kolbe electrolysis of biomass-derived short-chain carboxylic acids by anionic surfactants
	Lang, Lin1 ; Li, Yanbing 1,3; Lam, Jason Chun-Ho 2; Ding, Yingna 1; Yin, Xiuli1 ; Wu, Chuangzhi1,3
	2022-05-31
发表期刊	SUSTAINABLE ENERGY & FUELS
ISSN	2398-4902
卷号	6 期号:11 页码:2797-2804
通讯作者	Lam, Jason Chun-Ho() ; Yin, Xiuli()
摘要	Kolbe electrolysis of biomass-derived carboxylic acids into biofuels or chemicals represents a promising approach for the valorization of sustainable carbon sources, but selectively producing hydrocarbon products remains a great challenge in aqueous solution, especially for C-2-C-4 short-chain carboxylic acids (SCCAs). In the current work, significant increases in hydrocarbons were observed by doping a trace amount of an eco-friendly anionic surfactant (sodium dodecyl sulfate, SDS). We investigated the selective electrochemical decarboxylation of acetic acids and butanoic acids in aqueous solutions and at room temperature, following the principles of green chemistry. SDS provided a more hydrophobic layer on the Pt electrode surface that helps to protect organic species or radicals from water, which could improve the selectivity of hydrocarbons for the aqueous SCCAs solutions. However, the mechanism of selectivity improvement was different for the two common SCCAs. The SDS layer promoted the adsorption and retention of propyl radicals for butyric acid solutions and improved its conversion and dimerization to yield hexane, but the bulky propyl radicals also easily depart from the hydrophobic layer to become more propene. For acetic acids, however, the smaller methyl radical could be better protected in the hydrophobic SDS layer from reacting with the hydrophilic species in the aqueous phase; thus, the methanol product was inhibited, and OER reaction was promoted. This study provides a significant advancement to produce green hydrocarbons by improving the SCCAs application of aqueous Kolbe electrolysis.
DOI	10.1039/d1se02067f
关键词[WOS]	SODIUM DODECYL-SULFATE ; ELECTROCHEMICAL CONVERSION ; ELECTROCATALYTIC HYDROGENATION ; AQUEOUS-SOLUTIONS ; GENERATION
收录类别	SCI
语种	英语
资助项目	Guangdong Natural Science Foundation[2020A1515011568] ; Guangdong Provincial Science and Technology Project[2019A050510031] ; Guangdong Provincial Science and Technology Project[2021004] ; City University of Hong Kong[9610458]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
项目资助者	Guangdong Natural Science Foundation ; Guangdong Provincial Science and Technology Project ; City University of Hong Kong
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000795988600001
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/36568
专题	中国科学院广州能源研究所
通讯作者	Lam, Jason Chun-Ho; Yin, Xiuli
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.City Univ Hong Kong, State Key Lab Marine Pollut, Sch Energy & Environm, Kowloon Tong, Hong Kong, Peoples R China 3.Univ Sci & Technol China, Sch Engn Sci, Hefei 230026, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Lang, Lin,Li, Yanbing,Lam, Jason Chun-Ho,et al. Enhancing the selectivity of hydrocarbons during the Kolbe electrolysis of biomass-derived short-chain carboxylic acids by anionic surfactants[J]. SUSTAINABLE ENERGY & FUELS,2022,6(11):2797-2804.
APA	Lang, Lin,Li, Yanbing,Lam, Jason Chun-Ho,Ding, Yingna,Yin, Xiuli,&Wu, Chuangzhi.(2022).Enhancing the selectivity of hydrocarbons during the Kolbe electrolysis of biomass-derived short-chain carboxylic acids by anionic surfactants.SUSTAINABLE ENERGY & FUELS,6(11),2797-2804.
MLA	Lang, Lin,et al."Enhancing the selectivity of hydrocarbons during the Kolbe electrolysis of biomass-derived short-chain carboxylic acids by anionic surfactants".SUSTAINABLE ENERGY & FUELS 6.11(2022):2797-2804.