Synthesis and properties of ni-doped goethite and ni-doped hematite nanorods
文献类型：期刊论文
| 作者 | Krehula, Stjepko1; Ristic, Mira1; Mitar, Ivana2; Wu, Chuchu3,5; Li, Xuning3,4,6; Jiang, Luhua3,4; Wang, Junhu3,5; Sun, Gongquan3; Zhang, Tao5,6; Perovic, Marija7 |
| 刊名 | Croatica chemica acta
 |
| 出版日期 | 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. |
| 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 |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000456043500011 |
| 出版者 | CROATIAN CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2372858 |
| 专题 | 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 | Krehula, Stjepko,Ristic, Mira,Mitar, Ivana,et al. Synthesis and properties of ni-doped goethite and ni-doped hematite nanorods[J]. Croatica chemica acta,2018,91(3):389-401. |
| APA | Krehula, Stjepko.,Ristic, Mira.,Mitar, Ivana.,Wu, Chuchu.,Li, Xuning.,...&Music, Svetozar.(2018).Synthesis and properties of ni-doped goethite and ni-doped hematite nanorods.Croatica chemica acta,91(3),389-401. |
| MLA | Krehula, Stjepko,et al."Synthesis and properties of ni-doped goethite and ni-doped hematite nanorods".Croatica chemica acta 91.3(2018):389-401. |
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来源：大连化学物理研究所
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