Bio-inspired 2-line ferrihydrite as a high-capacity and high-rate-capability anode material for lithium-ion batteries

Hashimoto, Hideki; Ukita, Masahiro; Sakuma, Ryo; Nakanishi, Makoto; Fujii, Toru; Imanishi, Nobuyuki; Takada, Jun

doi:10.1016/j.jpowsour.2016.08.037

Cited by 7 publications

(12 citation statements)

References 33 publications

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“…Actually, ferrihydrite is a biocompatible material, characterized by a high reactivity and high ion adsorption capacity, paramagnetic properties at room temperature, as well as by tunable band gap between 1.3 and 2.5 eV [1,23]. These properties lead to diffuse applicability in several fields, such as in magnetic applications, wastewater treatments, metallurgical industry, lithium ion batteries, or in agricultural germination and growth of maize [24][25][26][27][28]. The methods of synthesis are typically based on chemical precipitation routes [8,[23][24][25], but they require extra purification steps and long times to obtain the final product, so that the possibility to produce large amounts of ferrihydrite nanoparticles (NPs) with high yields is still a challenge.…”

Section: Introductionmentioning

confidence: 99%

Nano-Sized Fe(III) Oxide Particles Starting from an Innovative and Eco-Friendly Synthesis Method

et al. 2020

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This paper introduces an original, eco-friendly and scalable method to synthesize ferrihydrite nanoparticles in aqueous suspensions, which can also be used as a precursor to produce α-hematite nanoparticles. The method, never used before to synthesize iron oxides, is based on an ion exchange process allowing to operate in one-step, with reduced times, at room temperature and ambient pressure, and using cheap or renewable reagents. The influence of reagent concentrations and time of the process on the ferrihydrite features is considered. The transformation to hematite is then analyzed and discussed in relation to different procedures: (1) A natural aging in the water at room temperature; and (2) heat treatments at different temperatures and times. Structural and morphological features of the obtained nanoparticles are investigated by means of several techniques, such as X-ray diffraction, X-ray photoelectron spectroscopy, attenuated total reflectance Fourier transform infrared spectroscopy, transmission and scanning electron microscopy, thermal analysis, nitrogen adsorption and magnetic measurements. Ferrihydrite shows the typical spherical morphology and a very high specific surface area of 420 m2/g. Rhombohedral or plate-like hexagonal hematite nanoparticles are obtained by the two procedures, characterized by dimensions of 50 nm and 30 nm, respectively, and a specific surface area up to 57 m2/g, which is among the highest values reported in the literature for hematite NPs.

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Section: Introductionmentioning

confidence: 99%

Nano-Sized Fe(III) Oxide Particles Starting from an Innovative and Eco-Friendly Synthesis Method

et al. 2020

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“…Due to excellent properties for filtering applications with a high specific surface area and reactivity 52 , the precipitation of ferrihydrite is widely investigated 48 , 53 , 54 . Ferrihydrite nanoparticles, which act as iron ion storage for plants and microbes, possess a tunable band gap between 1.3 and 2.5 eV and can be used in adsorption of heavy metal ions and metallurgical processing as well as in lithium ion batteries 10 , 11 , 50 – 52 , 55 , 56 . The further transition of ferrihydrite to more stable products such as akaganéite, goethite and hematite is dependent on temperature, pH and composition of the solution 16 , 53 , 55 , 57 – 60 .…”

Section: Introductionmentioning

confidence: 99%

Formation of iron oxide nanoparticles for the photooxidation of water: Alteration of finite size effects from ferrihydrite to hematite

Schwaminger

Surya

Filser

et al. 2017

Sci Rep

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Iron oxide nanoparticles represent a promising low-cost environmentally-friendly material for multiple applications. Especially hematite (α-Fe2O3) nanoparticles demonstrate great possibilities in energy storage and photoelectrochemistry. A hydrothermal one-pot synthesis can be used to synthesise hematite nanoparticles. Here, the particle formation, nucleation and growth of iron oxide nanoparticles using a FeCl3 precursor over time is monitored. The formation of 6-line ferrihydrite seeds of 2–8 nm which grow with reaction time and form clusters followed by a phase transition to ~15 nm hematite particles can be observed with ex situ X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman and UV/Vis spectroscopy. These particles grow with reaction time leading to 40 nm particles after 6 hours. The changes in plasmon and electron transition patterns, observed upon particle transition and growth lead to the possibility of tuning the photoelectrochemical properties. Catalytic activity of the hematite nanoparticles can be proven with visible light irradiation and the use of silver nitrate as scavenger material. The generation of elementary silver is dependent on the particle size of iron oxide nanoparticles while only slight changes can be observed in the oxygen generation. Low-cost nanoscale hematite, offers a range of future applications for artificial photosynthesis.

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“…To test the hypothesis that the enhanced structural stability during delithiation of BIOX NPs due to Si-doping leads to improved cyclability of BIOX NP-based batteries, we experimentally measured the rate capability of BIOX-based lithium-ion battery. 2032 coin-type cells using 2-line ferrihydrite (2Fh, also called iron(III) oxide-hydroxides) and 20% Si-doped 2Fh for electrodes were prepared 33 . Here, we used the Si-doped 2Fh as a basis of the primary NPs in the BIOX.…”

Section: Structural Stabilization By Si-dopingmentioning

confidence: 99%

“…In order to mirror these QMD simulations, we chemically synthesized biomimetic iron oxide NPs (2-line ferrihydrite, 2Fh) with and without Si-doping (synthesis details are described in methods) 33 . The microstructures of Si-free (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Rapid and reversible lithiation of doped biogenous iron oxide nanoparticles

Misawa

Hashimoto

Kalia³

et al. 2019

Sci Rep

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Certain bacteria produce iron oxide material assembled with nanoparticles (NPs) that are doped with silicon (Fe:Si ~ 3:1) in ambient environment. Such biogenous iron oxides (BIOX) proved to be an excellent electrode material for lithium-ion batteries, but underlying atomistic mechanisms remain elusive. Here, quantum molecular dynamics simulations, combined with biomimetic synthesis and characterization, show rapid charging and discharging of NP within 100 fs, with associated surface lithiation and delithiation, respectively. The rapid electric response of NP is due to the large fraction of surface atoms. Furthermore, this study reveals an essential role of Si-doping, which reduces the strength of Li-O bonds, thereby achieving more gentle and reversible lithiation culminating in enhanced cyclability of batteries. Combined with recent developments in bio-doping technologies, such fundamental understanding may lead to energy-efficient and environment-friendly synthesis of a wide variety of doped BIOX materials with customized properties.

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Bio-inspired 2-line ferrihydrite as a high-capacity and high-rate-capability anode material for lithium-ion batteries

Cited by 7 publications

References 33 publications

Nano-Sized Fe(III) Oxide Particles Starting from an Innovative and Eco-Friendly Synthesis Method

Nano-Sized Fe(III) Oxide Particles Starting from an Innovative and Eco-Friendly Synthesis Method

Formation of iron oxide nanoparticles for the photooxidation of water: Alteration of finite size effects from ferrihydrite to hematite

Rapid and reversible lithiation of doped biogenous iron oxide nanoparticles

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