About Ferrites

solid oxide fuel cell cathode and electrolyte cross section by SEM

Ferrites are iron oxide-based ceramic materials with magnetic properties, useful in many types of electronic devices and building materials. Ferrites are hard, brittle, generally gray or black, and typically have a crystal structure which has more than one type of site for the cations. Usually the magnetic moments of the metal ions on sites of one type are parallel to each other and anti-parallel to the moments on at least one site of another type. Ferrites are produced by sintering finely powdered precursor compounds in molds, milling the resulting material into a fine powder, and then re-sintering, with the second sintering round usually conducted in a magnetic field to ensure that the particles align properly.

Commercial ferrites can be classified as hard or soft.

Soft ferrites are used in transformer or electromagnetic cores. They have low coercivity and high resistivity, and contain iron, oxygen, zinc, or manganese.

Hard ferrites have high coercivity, and therefore are used as permanent magnets. Since ferrite permanent magnets are cheaper, and also weaker, than other available permanent magnets, they are frequently used in household products such as refrigerator magnets, and as mediums for magnetic recording. Strontium ferrite, barium ferrite, and Cobalt Ferritecobalt ferrite are all considered hard ferrites.

Recent Research & Development for Ferrites

Catalytic ozonation of di-n-butyl phthalate degradation using manganese ferrite/reduced graphene oxide nanofiber as catalyst in the water., Ren, Yueming, Zhang Huiyu, An Hongze, Zhao Ying, Feng Jing, Xue Lili, Luan Tianzhu, and Fan Zhuangjun , J Colloid Interface Sci, 2018 Sep 15, Volume 526, p.347-355, (2018)

Ultrafine Mn ferrite by anchoring in a cellulose framework for efficient toxic ions capture and fast water/oil separation., Wang, Hanwei, Chen Yipeng, Dang Baokang, Shen Xiaoping, Jin Chunde, Sun Qingfeng, and Pei Jianchuan , Carbohydr Polym, 2018 Sep 15, Volume 196, p.117-125, (2018)

Integrin αβ receptor targeting PET/MRI dual-modal imaging probe based on the Cu labeled manganese ferrite nanoparticles., Shi, Xudong, and Shen Langtao , J Inorg Biochem, 2018 Sep, Volume 186, p.257-263, (2018)

Doxorubicin hydrochloride - Loaded electrospun chitosan/cobalt ferrite/titanium oxide nanofibers for hyperthermic tumor cell treatment and controlled drug release., Radmansouri, Maryam, Bahmani Ehsan, Sarikhani Einollah, Rahmani Keivan, Sharifianjazi Fariborz, and Irani Mohammad , Int J Biol Macromol, 2018 Sep, Volume 116, p.378-384, (2018)

Synthesis of zeolite/nickel ferrite/sodium alginate bionanocomposite via a co-precipitation technique for efficient removal of water-soluble methylene blue dye., Bayat, Mahsa, Javanbakht Vahid, and Esmaili Javad , Int J Biol Macromol, 2018 Sep, Volume 116, p.607-619, (2018)

Synthesis of zinc ferrite/silver iodide composite with enhanced photocatalytic antibacterial and pollutant degradation ability., Xu, Yuanguo, Liu Qingqing, Xie Meng, Huang Shuquan, He Minqiang, Huang Liying, Xu Hui, and Li Huaming , J Colloid Interface Sci, 2018 Oct 15, Volume 528, p.70-81, (2018)

Synthesis and evaluation of layered double hydroxide/doxycycline and cobalt ferrite/chitosan nanohybrid efficacy on gram positive and gram negative bacteria., El-Shahawy, Ahmed A. G., El-Ela Fatma I. Abo, Mohamed Nada A., Eldine Zienab E., and Rouby Waleed M. A. El , Mater Sci Eng C Mater Biol Appl, 2018 Oct 01, Volume 91, p.361-371, (2018)

Flexible Lithium Ferrite Nanopillar Arrays for Bending Stable Microwave Magnetism., Lan, Guohua, Shen Lvkang, Lu Lu, Cao Cuimei, Jiang Changjun, Fu Huarui, You Caiyin, Lu Xiaoli, Ma Chunrui, Liu Ming, et al. , ACS Appl Mater Interfaces, 2018 Nov 07, (2018)

Correlation between the magnetic-microstructure and microwave mitigation ability of MCoFeO based ferrite-carbon black/PVA composites., Datt, Gopal, Kotabage Chetan, Datar Suwarna, and Abhyankar Ashutosh C. , Phys Chem Chem Phys, 2018 Nov 07, Volume 20, Issue 41, p.26431-26442, (2018)

Synthesis and characterization of metals-substituted cobalt ferrite [M Co FeO; (M = Zn, Cu and Mn; x = 0 and 0.5)] nanoparticles as antimicrobial agents and sensors for Anagrelide determination in biological samples., Maksoud, M I. A. Abdel, El-Sayyad Gharieb S., Ashour A H., El-Batal Ahmed I., Abd-Elmonem Mahmmoud S., Hendawy Hassan A. M., Abdel-Khalek E K., Labib Sh, Abdeltwab E, and El-Okr M M. , Mater Sci Eng C Mater Biol Appl, 2018 Nov 01, Volume 92, p.644-656, (2018)

Magnetic ferrite particles combined with electrothermal atomic absorption spectrometry for the speciation of low concentrations of arsenic., López-García, Ignacio, Marín-Hernández Juan José, and Hernández-Córdoba Manuel , Talanta, 2018 May 01, Volume 181, p.6-12, (2018)

Lithium Storage Performance of Zinc Ferrite Nanoparticle Synthesized with the Assistance of Triblock Copolymer P123., Yao, J H., Li Y W., Song X B., Zhang Y F., and Yan J , J Nanosci Nanotechnol, 2018 May 01, Volume 18, Issue 5, p.3599-3605, (2018)

Reduced graphene oxide/BiFeO3 nanohybrids-based signal-on photoelectrochemical sensing system for prostate-specific antigen detection coupling with magnetic microfluidic device., Zhou, Qian, Lin Youxiu, Zhang Kangyao, Li Meijin, and Tang Dianping , Biosens Bioelectron, 2018 Mar 15, Volume 101, p.146-152, (2018)

An efficient and cost-effective tri-functional electrocatalyst based on cobalt ferrite embedded nitrogen doped carbon., Alshehri, Saad M., Alhabarah Ameen N., Ahmed Jahangeer, Naushad Mu, and Ahamad Tansir , J Colloid Interface Sci, 2018 Mar 15, Volume 514, p.1-9, (2018)

Synthesis and application of bismuth ferrite nanosheets supported functionalized carbon nanofiber for enhanced electrochemical detection of toxic organic compound in water samples., Ramaraj, Sukanya, Mani Sakthivel, Chen Shen-Ming, Kokulnathan Thangavelu, Lou Bih-Show, M Ali Ajmal, Hatamleh A A., and Al-Hemaid Fahad M. A. , J Colloid Interface Sci, 2018 Mar 15, Volume 514, p.59-69, (2018)