Biosynthesis of Co3O4 electrode materials by peptide and phage engineering: comprehension and future

Rosant, C.; Avalle, Bérangère; Larcher, Dominique; Dupont, L.; Friboulet, Alain; Tarascon, Jean‐Marie

doi:10.1039/c2ee22234e

Cited by 45 publications

(46 citation statements)

References 34 publications

(36 reference statements)

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“…In addition, the combined solution does not show any noticeable absorption after subsequent addition of the reductant NaBH 4 solution, which indicates the formation of Co 0 nanometals by the reduction reaction, as reported in the UV-visible spectra of cobalt nanoparticles1718. Furthermore, the subsequent reduction of Co 2+ ions by NaBH 4 was clearly evidenced by the systematic color change from pink to black, and the black coloration of the solution changed to dark yellow by the spontaneous air oxidation in aqueous solution with increasing reaction time1119 (Supplementary Fig. S5).…”

Section: Resultssupporting

confidence: 53%

“…Furthermore, we used the porous-Co 3 O 4 superstructures as an electrode material for supercapacitors, which resulted in devices with high yields and mass-loadings of active materials per unit area. Even if a few applications have been reported as electrode materials for Li-ion batteries711, they have been measured with a low mass-loading of active materials per unit area, thereby leading to the practical difficulties in the applications to electrode materials for Li-ion batteries. Besides, the application of bacteria-templated Co 3 O 4 as supercapacitor electrodes has rarely been reported.…”

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confidence: 99%

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Scalable One-pot Bacteria-templating Synthesis Route toward Hierarchical, Porous-Co3O4 Superstructures for Supercapacitor Electrodes

Shim

Lim

Kim

et al. 2013

Sci Rep

118

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Template-driven strategy has been widely used to synthesize inorganic nano/micro materials. Here, we used a bottom-up controlled synthesis route to develop a powerful solution-based method of fabricating three-dimensional (3D), hierarchical, porous-Co3O4 superstructures that exhibit the morphology of flower-like microspheres (hereafter, RT-Co3O4). The gram-scale RT-Co3O4 was facilely prepared using one-pot synthesis with bacterial templating at room temperature. Large-surface-area RT-Co3O4 also has a noticeable pseudocapacitive performance because of its high mass loading per area (~10 mg cm−2), indicating a high capacitance of 214 F g−1 (2.04 F cm−2) at 2 A g−1 (19.02 mA cm−2), a Coulombic efficiency averaging over 95%, and an excellent cycling stability that shows a capacitance retention of about 95% after 4,000 cycles.

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Section: Resultssupporting

confidence: 53%

mentioning

confidence: 99%

Scalable One-pot Bacteria-templating Synthesis Route toward Hierarchical, Porous-Co3O4 Superstructures for Supercapacitor Electrodes

Shim

Lim

Kim

et al. 2013

Sci Rep

118

View full text Add to dashboard Cite

show abstract

“…In contrast, a reliance only on precipitation from a supersaturated solution limits the materials palette available to thermodynamically favorable products unless, as in a biotemplating approach, an additional reactive chemical species is introduced, e.g., in functional material production, the use of Na2S as a reactive sulfur source in CdS biomineralization 19 and H2O2 as an oxidizing agent in Co3O4 biomineralization for battery applications. 20 The challenge to producing "green"…”

mentioning

confidence: 99%

Direct Single-Enzyme Biomineralization of Catalytically Active Ceria and Ceria–Zirconia Nanocrystals

Curran¹,

Jia³

et al. 2017

ACS Nano

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Biomineralization is an intriguing approach to the synthesis of functional inorganic materials for energy applications whereby biological systems are engineered to mineralize inorganic materials and control their structure over multiple length scales under mild reaction conditions. Herein we demonstrate a single-enzyme-mediated biomineralization route to synthesize crystalline, catalytically active, quantum-confined ceria (CeO) and ceria-zirconia (CeZrO) nanocrystals for application as environmental catalysts. In contrast to typical anthropogenic synthesis routes, the crystalline oxide nanoparticles are formed at room temperature from an otherwise inert aqueous solution without the addition of a precipitant or additional reactant. An engineered form of silicatein, rCeSi, as a single enzyme not only catalyzes the direct biomineralization of the nanocrystalline oxides but also serves as a templating agent to control their morphological structure. The biomineralized nanocrystals of less than 3 nm in diameter are catalytically active toward carbon monoxide oxidation following an oxidative annealing step to remove carbonaceous residue. The introduction of zirconia into the nanocrystals leads to an increase in Ce(III) concentration, associated catalytic activity, and the thermal stability of the nanocrystals.

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“…M13 viruses have been used as versatile templates for high aspect ratio nanowire synthesis (e.g. semiconductors, 31 metal oxides 32, 33, 34 ) under environmentally benign conditions. Among the five different types of capsid proteins on this virus template, p8 is a major coat protein with 2,700 copies surrounding the single-stranded DNA.…”

Section: Resultsmentioning

confidence: 99%

Biologically enhanced cathode design for improved capacity and cycle life for lithium-oxygen batteries

et al. 2013

Nat Commun

162

113

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Lithium-oxygen batteries have a great potential to enhance the gravimetric energy density of fully packaged batteries by 2–3 times that of lithium-ion cells. Recent studies have focused on finding stable electrolytes to address poor cycling capability and improve practical limitations of current lithium-oxygen batteries. In this study, the catalyst electrode, where discharge products are deposited and decomposed, was investigated since it plays a critical role in the operation of rechargeable lithium-oxygen batteries. Here we report the electrode design principle to improve specific capacity and cycling performance of lithium-oxygen batteries by utilizing high efficiency nanocatalysts assembled by M13 virus with earth abundant elements, such as manganese oxides. By incorporating only 3–5 wt % of palladium nanoparticles in the electrode, this hybrid nanocatalyst achieves 13,350 mAh g−1c (7,340 mAh g−1c+catalyst) of specific capacity at 0.4 A g−1c and a stable cycle life up to 50 cycles (4,000 mAh g−1c, 400 mAh g−1c+catalyst) at 1 A g−1c.

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Biosynthesis of Co3O4 electrode materials by peptide and phage engineering: comprehension and future

Cited by 45 publications

References 34 publications

Scalable One-pot Bacteria-templating Synthesis Route toward Hierarchical, Porous-Co3O4 Superstructures for Supercapacitor Electrodes

Scalable One-pot Bacteria-templating Synthesis Route toward Hierarchical, Porous-Co3O4 Superstructures for Supercapacitor Electrodes

Direct Single-Enzyme Biomineralization of Catalytically Active Ceria and Ceria–Zirconia Nanocrystals

Biologically enhanced cathode design for improved capacity and cycle life for lithium-oxygen batteries

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