Biotemplating: a sustainable synthetic methodology for Na-ion battery materials

Zilinskaite, Silvija; Rennie, Anthony J. R.; Boston, Rebecca; Reeves‐McLaren, Nik

doi:10.1039/c7ta09260a

Cited by 5 publications

(12 citation statements)

References 33 publications

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“…If water intercalation did any lasting damage, to the extent that electrochemical performance would be affected, it would likely be evident even after drying under vacuum at 120 °C. As shown in our previous study, the biotemplating synthetic process produces agglomerated particles of P3-NNM with individual average particle sizes in the range of 100-200 nm (Zilinskaite et al, 2018), which can be observed in Figures 3A,B. Such morphologies have been found in other dextran-templated materials (Walsh et al, 2003).…”

Section: Resultssupporting

confidence: 77%

“…P3-NNM was synthesized by dextran biotemplating, as reported previously (Zilinskaite et al, 2018). The reagents were obtained from Sigma-Aldrich (UK) with 98+% purity and used without further treatment.…”

Section: Materials and Synthesismentioning

confidence: 99%

“…As P3-NNM can be synthesized at lower temperatures, it is a potentially more sustainable alternative to P2-NNM (Lee et al, 2017;L. Zhang et al, 2020b;Zilinskaite et al, 2018), with equivalent or a slightly better specific capacity (Wen et al, 2015;L. Zhang et al, 2020b;Zheng et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Xanthan gum as a water-based binder for P3-Na2/3Ni1/3Mn2/3O2

2022

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P3-Na2/3Ni1/3Mn2/3O2 (P3-NNM) is a promising cathode material for Na-ion batteries, although large volume expansions during cycling mean that challenges around suitable binders still remain. This study reports the use of xanthan gum as a water-soluble, easy to handle, and sustainable biopolymer binder in conjunction with a P3-Na2/3Ni1/3Mn2/3O2-positive electrode material. The conditions for recovering pristine P3-NNM powders, following water-based processing, are established, and the electrochemical performance of cells prepared using the xanthan gum binder are compared to the more traditional polyvinylidene fluoride. Comparable discharge capacities are observed regardless of the binder choice, at ca. 115 mA h g−1 (77 mAh g−1 after 50 cycles; 0.1 C between 2.0 and 4.2 V). The xanthan gum binder cells also show a similar rate capability and slightly higher capacities at faster c-rates vs. polyvinylidene fluoride, making xanthan gum a viable alternative to the traditional organic binders for water-stable cathode materials.

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Section: Resultssupporting

confidence: 77%

Section: Materials and Synthesismentioning

confidence: 99%

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Xanthan gum as a water-based binder for P3-Na2/3Ni1/3Mn2/3O2

2022

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“…This matrix subsequently 'traps' metal cations from solution and allows the formation of a homogeneous aqueous gel, which acts as a precursor for sol-gel synthesis (see the biopolymer review 55 ). The process promotes nano-sized particle formation at reduced temperatures compared to that of traditional solid state methods, with the biotemplate removed by the thermal treatment 56 .…”

Section: Ideal Garnets Have a General Formulamentioning

confidence: 99%

Low temperature synthesis of garnet solid state electrolytes: Implications on aluminium incorporation in Li7La3Zr2O12

et al. 2020

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“…Dextran has also been used with this purpose. Using this template allowed the authors to control the morphology of the nanoparticle, which exhibited a higher energy storage capacity than traditionally created materials after the same conditions (103.1 mAh g −1 compared to 80.1 mAh g −1 after 10 cycles, respectively) [133].…”

Section: Energy Capture and Storagementioning

confidence: 99%

Bio-Templating: An Emerging Synthetic Technique for Catalysts. A Review

et al. 2021

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In the last few years, researchers have focused their attention on the synthesis of new catalyst structures based on or inspired by nature. Biotemplating involves the transfer of biological structures to inorganic materials through artificial mineralization processes. This approach offers the main advantage of allowing morphological control of the product, as a template with the desired morphology can be pre-determined, as long as it is found in nature. This way, natural evolution through millions of years can provide us with new synthetic pathways to develop some novel functional materials with advantageous properties, such as sophistication, miniaturization, hybridization, hierarchical organization, resistance, and adaptability to the required need. The field of application of these materials is very wide, covering nanomedicine, energy capture and storage, sensors, biocompatible materials, adsorbents, and catalysis. In the latter case, bio-inspired materials can be applied as catalysts requiring different types of active sites (i.e., redox, acidic, basic sites, or a combination of them) to a wide range of processes, including conventional thermal catalysis, photocatalysis, or electrocatalysis, among others. This review aims to cover current experimental studies in the field of biotemplating materials synthesis and their characterization, focusing on their application in heterogeneous catalysis.

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Biotemplating: a sustainable synthetic methodology for Na-ion battery materials

Abstract: Dextran biotemplating offers a novel, sustainable and fast reduced-temperature synthetic route for energy storage materials (e.g. P3-Na2/3Ni1/3Mn2/3O2) with fine control over particle size and morphology that offers a new route to optimizing electrochemical properties.

Cited by 5 publications

References 33 publications

Xanthan gum as a water-based binder for P3-Na2/3Ni1/3Mn2/3O2

Xanthan gum as a water-based binder for P3-Na2/3Ni1/3Mn2/3O2

Low temperature synthesis of garnet solid state electrolytes: Implications on aluminium incorporation in Li7La3Zr2O12

Bio-Templating: An Emerging Synthetic Technique for Catalysts. A Review

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