Promoted Raney Ni catalyzed hydrodefluorination of fluorophenols under mild conditions via controlling solvents and bases

doi:10.1016/j.cej.2023.146231

	Promoted Raney Ni catalyzed hydrodefluorination of fluorophenols under mild conditions via controlling solvents and bases
	Li, Haiyan 1,2; Gong, Xutao 1,2; Li, Tong 1,2; Liu, Sujing 2; Liu, Ying 2; Ma, Xuanxuan 1,2; Li, Qing3 ; Xia, Chuanhai1,2
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
	2023-11-01
卷号	475 页码:10
关键词	4-Fluorophenol Hydrodefluorination (HDF) Raney Ni Fluoroaromatic compound (FAC) Solvent Base
DOI	10.1016/j.cej.2023.146231
通讯作者	Ma, Xuanxuan(ytumaxuan@163.com) ; Xia, Chuanhai(chxia_ldu@163.com)
英文摘要	Fluorinated organic compounds (FOCs) are difficult to degrade and persistent in the environment due to the strong C-F bond strength. In this context, the applicability of Raney Ni to catalytic hydrodefluorination (HDF) of FOCs under mild conditions remains an important challenge. In this study, the effects of solvent systems and bases on Raney Ni catalyzed HDF reaction were investigated and evaluated with 4-FP using as a model fluo-roaromatic compound (FAC). It was found that the HDF reactivity of 4-FP over Raney Ni increased with the increase of water proportion and polarity of homogeneous ethanol-water solvents, and Raney Ni exhibited highest activity and stability in catalytic HDF of 4-FP in water with appropriate NaOH amount (1.5NaOH) under mild conditions. The mechanisms of these phenomena were clarified with the aid of catalyst characterization (SEM, EDX, and XRD) combined with ICP-OES. The results suggested that water could efficiently dissolve inorganic salt (NaF) produced in situ, which avoided the decrease in the catalytic activity of Raney Ni in the HDF of 4-FP due to the deposition of NaF on the surface of the catalyst. Moreover, the appropriate NaOH amount (1.5NaOH) in water could efficiently avoid the corrosion effect of HF on Raney Ni and eliminate the framework collapse of the catalyst resulted from the corrosion of Al. In water with 1.5NaOH, Raney Ni exhibited the highest activity and stability in catalytic HDF of 4-FP, with a complete conversion of 4-FP for at least 10 times. Based on these studies, an efficient reaction system was developed for Raney Ni catalyzed HDF of 4-FP, which would provide guidance to apply Raney Ni for catalytic HDF of FACs under mild conditions.
资助机构	Na- tional Natural Science Foundation of China ; Science and Technology Plan of Youth Innovation Team in Shandong Province ; Natural Science Foundation of Shandong Province of China
收录类别	SCI
语种	英语
关键词[WOS]	LIQUID-PHASE HYDRODECHLORINATION ; ELECTROCHEMICAL HYDRODEFLUORINATION ; DEGRADATION ; HYDRODEHALOGENATION ; ADSORPTION ; WATER ; PD/C
研究领域[WOS]	Engineering
WOS记录号	WOS:001090879100001
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/33301
专题	海岸带生物学与生物资源利用重点实验室海岸带生物学与生物资源利用重点实验室_海岸带生物资源高效利用研究与发展中心
通讯作者	Ma, Xuanxuan; Xia, Chuanhai
作者单位	1.Ludong Univ, Inst Adv Study Coastal Ecol, Yantai 264025, Peoples R China 2.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Li, Haiyan,Gong, Xutao,Li, Tong,et al. Promoted Raney Ni catalyzed hydrodefluorination of fluorophenols under mild conditions via controlling solvents and bases[J]. CHEMICAL ENGINEERING JOURNAL,2023,475:10.
APA	Li, Haiyan.,Gong, Xutao.,Li, Tong.,Liu, Sujing.,Liu, Ying.,...&Xia, Chuanhai.(2023).Promoted Raney Ni catalyzed hydrodefluorination of fluorophenols under mild conditions via controlling solvents and bases.CHEMICAL ENGINEERING JOURNAL,475,10.
MLA	Li, Haiyan,et al."Promoted Raney Ni catalyzed hydrodefluorination of fluorophenols under mild conditions via controlling solvents and bases".CHEMICAL ENGINEERING JOURNAL 475(2023):10.