Application of sputtered ruthenium nitride thin films as electrode material for energy-storage devices

Bouhtiyya, S.; Porto, Raúl Lucio; Laïk, Barbara; Boulet, Pascal; Capon, Fabien; Pereira-Ramos, J.P.; Brousse, Thierry; Pierson, J.F.

doi:10.1016/j.scriptamat.2013.01.030

Cited by 91 publications

(45 citation statements)

References 19 publications

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“…S1), indicating its dynamic instability. ZnS-type RuN was also reported to have been deposited by pulsed-DC magnetron sputtering at the pressure of 1 Pa and the temperature of about 50 °C2021. Similar to NaCl-type RuN, we found that ZnS-type RuN is also mechanically unstable with a negative C 44 value (−170 GPa).…”

Section: Resultssupporting

confidence: 56%

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Diverse ruthenium nitrides stabilized under pressure: a theoretical prediction

Zhang

Wan

et al. 2016

Sci Rep

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First-principles calculations were performed to understand the structural stability, synthesis routes, mechanical and electronic properties of diverse ruthenium nitrides. RuN with a new I-4m2 symmetry stabilized by pressure is found to be energetically preferred over the experimental NaCl-type and ZnS-type ones. The Pnnm-RuN2 is found to be stable above 1.1 GPa, in agreement with the experimental results. Specifically, new stoichiometries like RuN3 and RuN4 are proposed firstly to be thermodynamically stable, and the dynamical and mechanical stabilities of the newly predicted structures have been verified by checking their phonon spectra and elastic constants. A phase transition from P4/mmm-RuN4 to C2/c-RuN4 is also uncovered at 23.0 GPa. Drawn from bonding and band structure analysis, P4/mmm-RuN4 exhibits semi-metal-like behavior and becomes a semiconductor for the high-pressure C2/c-RuN4 phase. Meanwhile the P21/c-RuN3 shows metallic feature. Highly directional covalent N-N and Ru-N bonds are formed and dominating in N-enriched Ru nitrides, making them promising hard materials.

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Section: Resultssupporting

confidence: 56%

“…ZnS-type RuN thin films were also reported in the later studies2021. Recently, RuN 2 with marcasite-type structure and bulk modulus of 330 GPa was identified by Niwa et al 17…”

mentioning

confidence: 85%

Diverse ruthenium nitrides stabilized under pressure: a theoretical prediction

Zhang

Wan

et al. 2016

Sci Rep

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“…The most important advantage of conversion-type materials over insertion compounds is that, theoretically, all of the metal redox potentials of the active material can be utilized during cycling, which indicates a much higher capacity and energy density. Various conversion-type compounds, such as metal oxides [2][3][4], fluorides [5][6][7][8][9][10][11], sulfides [12][13][14][15], and nitrides [16][17][18][19], have been investigated as active materials for Li-ion batteries. Among them, only metal fluorides could be studied as cathode materials due to their relatively high operating potential, which is induced by highly ionic metal-ligand bonds [20,21].…”

Section: Introductionmentioning

confidence: 99%

Thermal Characteristics of Conversion-Type FeOF Cathode in Li-ion Batteries

2017

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Rutile FeOF was used as a conversion-type cathode material for Li-ion batteries. In the present study, 0.6Li, 1.4Li, and 2.7Li per mole lithiation reactions were carried out by changing the electrochemical discharge reaction depth. The thermal characteristics of the FeOF cathode were investigated by thermogravimetric mass spectrometric (TG-MS) and differential scanning calorimeter (DSC) systems. No remarkable HF release was detected, even up to 700 • C, which indicated a low toxic risk for the FeOF cathode. Changes in the thermal properties of the FeOF cathode via different conversion reaction depths in the associated electrolyte were studied by changing the cathode/electrolyte ratio in the mixture. LiFeOF was found to exothermically react with the electrolyte at about 210 • C. Similar exothermic reactions were found with charged FeOF cathodes because of the irreversible Li ions. Among the products of the conversion reaction of FeOF, Li 2 O was found to exothermically react with the electrolyte at about 120 • C, which induced the main thermal risk of the FeOF cathode. It suggests that the oxygen-containing conversion-type cathodes have a higher thermal risk than the oxygen-free ones, but controlling the cathode/electrolyte ratio in cells successfully reduced the thermal risk. Finally, the thermal stability of the FeOF cathode was evaluated in comparison with FeF 3 and LiFePO 4 cathodes.

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“…The thin-film microbattery has been put forward as the prime candidate with respect to reaching a reasonable autonomy and a fair cycle life. 7,8 Pseudocapacitive materials 9 such as MnO 2 [10][11][12] and RuO 2 , 13,14 or transition metal nitrides such as VN, 15,16 TiN 17 and RuN, 18 are also of interest due to fast and reversible surface redox processes which usually provide higher capacitance than carbons. Subsequently, microsized supercapacitors (µSCs) have come under consideration as complementary devices by virtue of their higher power density and their longer lifetime.…”

Section: Introductionmentioning

confidence: 99%

Solder-reflow resistant solid-state micro-supercapacitors based on ionogels

et al. 2016

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All-solid-state devices and thermal resistance to solder reflow are crucial issues with respect to micro-supercapacitors.While the latter issue can be addressed by using ionic liquids, the former shows promising results by employing the ionogel approach. The present study focuses on a novel formulation of ionogels -for use as solid state electrolytes in micro-supercapacitors with silicon nanowire electrodes -which promotes the crack-free formation of an efficient solid electrolyte onto silicon nanostructures in a single-step sol-gel process. The capacitance obtained was the same as that for a device using non-confined ionic liquid, showing a good wetting of the 3D nanostructured silicon electrodes by the sol precursor of the solid ionogel. The assembled symmetric micro-supercapacitor exhibit very high cycling stability and can sustain the reflow soldering process used in the fabrication of microelectronic devices without compromising their electrochemical performance, and even improving their frequency response.

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Application of sputtered ruthenium nitride thin films as electrode material for energy-storage devices

Cited by 91 publications

References 19 publications

Diverse ruthenium nitrides stabilized under pressure: a theoretical prediction

Diverse ruthenium nitrides stabilized under pressure: a theoretical prediction

Thermal Characteristics of Conversion-Type FeOF Cathode in Li-ion Batteries

Solder-reflow resistant solid-state micro-supercapacitors based on ionogels

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