Synthesis and Properties of Ni-doped Goethite and Ni-doped Hematite Nanorods

doi:10.5562/cca3402

	Synthesis and Properties of Ni-doped Goethite and Ni-doped Hematite Nanorods
	Sun, Gongquan 3; Krehula, Stjepko 1; Ristic, Mira 1; Mitar, Ivana 2; Wu, Chuchu 3,5; Li, Xuning 3,4,6; Jiang, Luhua 3,4; Wang, Junhu 3,5; Zhang, Tao 5,6; Perovic, Marija 7
刊名	CROATICA CHEMICA ACTA
	2018-12-01
卷号	91 期号:3 页码:389-401
关键词	alpha-FeOOH alpha-Fe2O3 Ni doping XRPD Mossbauer spectroscopy FE-SEM OER
ISSN号	0011-1643
DOI	10.5562/cca3402
通讯作者	Krehula, Stjepko(krehul@irb.hr) ; Ristic, Mira(ristic@irb.hr)
英文摘要	Ni-doped goethite (alpha-FeOOH) nanorods were synthesized from mixed Fe(III)-Ni(II) nitrate solutions with various Ni/(Ni+Fe) ratios (0, 5, 10, 20, 33 and 50 mol % Ni) by hydrothermal precipitation in a highly alkaline medium using the strong organic alkali, tetramethyl-ammonium hydroxide (TMAH). Ni-doped hematite (alpha-Fe2O3) nanorods were obtained by calcination of Ni-doped goethite nanorods at 400 degrees C. The Ni2+-for-Fe3+ substitution in goethite and hematite was confirmed by determination of the unit cell expansion (due to the difference in the ionic radii of Fe3+ and Ni2+) using XRPD and determination of the reduction of a hyperfine magnetic field (due to the difference in magnetic moments of Fe2+ and Ni2+) using Mossbauer spectroscopy. Single-phase goethite nanorods were found in samples containing 0 or 5 mol % Ni. A higher Ni content in the precipitation system (10 mol % or more) resulted in a higher Ni2+-for-Fe2+ substitution in goethite, and larger Ni-doped goethite nanorods, though with the presence of low crystalline Ni-containing ferrihydrite and Ni ferrite (NiFe2O4) as additional phases. Significant changes in FT-IR and UV-Vis-NIR spectra of prepared samples were observed with increasing Ni content. Electrochemical measurements of samples showed a strong increase in oxygen evolution reaction (OER) electrocatalytic activity with increasing Ni content.
资助项目	Croatian Science Foundation[IP-2016-06-8254] ; SAFU[KK.01.1.1.01.0001] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA09030104] ; Natural Science Foundation of China[21576258] ; Natural Science Foundation of China[21476232]
WOS关键词	MAGNETIC-PROPERTIES ; ALPHA-FEOOH ; STRUCTURAL-CHARACTERIZATION ; MICROSTRUCTURAL PROPERTIES ; MOSSBAUER-SPECTROSCOPY ; IRON-OXIDES ; ALPHA-FE2O3 ; NICKEL ; DEGRADATION ; NANOPARTICLES
WOS研究方向	Chemistry
语种	英语
出版者	CROATIAN CHEMICAL SOC
WOS记录号	WOS:000456043500011
资助机构	Croatian Science Foundation ; Croatian Science Foundation ; SAFU ; SAFU ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Croatian Science Foundation ; Croatian Science Foundation ; SAFU ; SAFU ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Croatian Science Foundation ; Croatian Science Foundation ; SAFU ; SAFU ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Croatian Science Foundation ; Croatian Science Foundation ; SAFU ; SAFU ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166186]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Krehula, Stjepko; Ristic, Mira
作者单位	1.Rudjer Boskovic Inst, Div Mat Chem, POB 180, HR-10002 Zagreb, Croatia 2.Univ Split, Fac Sci, HR-21000 Split, Croatia 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 4.Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China 5.Chinese Acad Sci, Mossbauer Effect Data Ctr, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 7.Univ Belgrade, Inst Nucl Sci Vinca, Condensed Matter Phys Lab, Belgrade, Serbia 8.Croatian Acad Sci & Arts, Trg Nikole Subica Zrinskog 11, HR-10000 Zagreb, Croatia
推荐引用方式 GB/T 7714	Sun, Gongquan,Krehula, Stjepko,Ristic, Mira,et al. Synthesis and Properties of Ni-doped Goethite and Ni-doped Hematite Nanorods[J]. CROATICA CHEMICA ACTA,2018,91(3):389-401.
APA	Sun, Gongquan.,Krehula, Stjepko.,Ristic, Mira.,Mitar, Ivana.,Wu, Chuchu.,...&Music, Svetozar.(2018).Synthesis and Properties of Ni-doped Goethite and Ni-doped Hematite Nanorods.CROATICA CHEMICA ACTA,91(3),389-401.
MLA	Sun, Gongquan,et al."Synthesis and Properties of Ni-doped Goethite and Ni-doped Hematite Nanorods".CROATICA CHEMICA ACTA 91.3(2018):389-401.