Development of TiO2-supported RuO2 composite-incorporated Ni–P electrodes for amperometric measurement of ethanol

Shibli, S.M.A.; Suma, N.; Dilimon, V.S.

doi:10.1016/j.snb.2007.07.121

Cited by 18 publications

(9 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ru–Ti–O has been used as a benchmark ceramic anode over the past several decades in the energy‐intensive chlor‐alkali process . It also receives extensive attention in applications for gas sensing, water electrolysis, and energy storage, etc. From microstructure point of view, like many other ruthenium‐ and iridium‐based complex oxides, solid solubility and phase separation have been found to greatly affect the electrocatalytic activity of Ru–Ti–O.…”

Section: Introductionmentioning

confidence: 99%

Phase Stability and Phase Structure of Ru–Ti–O Complex Oxide Electrocatalyst

et al. 2015

View full text Add to dashboard Cite

Phase stability of (Ru 1x ,Ti x )O 2 solid solution was investigated via materials computation and X-ray diffraction phase analyses. The unit cell volume of (Ru 1x ,Ti x )O 2 was found not increasing monotonously with the fraction of TiO 2 , making the volume-composition relationship no longer suitable for the quantitative phase analysis. A monotonous nonlinear c/a-x relation obtained from the ab initio density functional theory (DFT) computation was proved critical to achieving accurate phase analysis results. Gibbs free energy of mixing and its derivatives were determined for (Ru 1x ,Ti x )O 2 by a combination of DFT and thermodynamic calculations, where approximation of the temperature dependence of the interaction parameter (Ω) played a critical role. It was found that the conventional approximation method of arbitrarily choosing a value [ [10,25] kJ (mole of atoms) -1 for Ω near a critical temperature of a solid solution structure failed to predict the correct symmetry and span of the miscibility gap for (Ru 1x ,Ti x )O 2 . In comparison, Ω calculated from disordered (Ru 1x ,Ti x )O 2 was found a good approximation at the critical temperature. The calculated miscibility gap for (Ru 1x ,Ti x )O 2 , therefore, showed good agreement with the accurate quantitative phase analysis results for the samples prepared by a sol-gel method.

show abstract

Section: Introductionmentioning

confidence: 99%

Phase Stability and Phase Structure of Ru–Ti–O Complex Oxide Electrocatalyst

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Moreover, Lassali et al prepared ternary solid solution of Ru 0.3 Pt x Ti 0.7− x O 2 for chlorine evolution, and found that the surface properties are governed by the RuO x features, which mean that more complex solid solutions can be designed to obtain more excellent composite catalyst system. In addition, Ru 1− x Ti x O 2 solid solution also presents excellent performance in other application fields, such as: gas sensing, photocatalysis, supercapacitor . These research progress indicates that the design and preparation of Ru 1− x Ti x O 2 solid solution is a very practical research direction.…”

Section: Introductionmentioning

confidence: 97%

Stable structure and electronic properties of Ru₁₋_xTi_xO₂ rutile type solid solutions from DFT calculations

Yang

Zhao

2019

J Am Ceram Soc

View full text Add to dashboard Cite

To design solid solution is an effective strategy for functional materials. The complex electron correlation and non‐equilibrium atomic interaction are the primary factors to impact the macro‐/micro‐structure and application performances of solid solution. Hence, this article concentrates on the stable crystal structure and the corresponding electronic structure of Ru1−xTixO2 solid solution by using density functional theory calculations. Based on analyzing the atomic interaction between solute and solvent atoms, the most stable supercell models for the specific solid solubility were obtained. In Ru1−xTixO2 solid solution, solute (and solvent) atoms preferentially arrange along the [110] direction, and tend to occupy the nearest sites of identical atoms, to arrange the symmetric ordered substitution configurations. Using the subregular solution model, the mixing enthalpy can be represented by the following expression: ΔHf=XTiO2XRuO235.30XTiO2+23.08XRuO2. The calculated phase diagram is consistent with the experimental results. Thus, the calculated results in this article are reliable and can provide more meaningful information. In the cases of Ru‐rich solid solutions, the metastable phase exists in the range of x < 0.27; while in the cases of Ti‐rich solid solutions, the metastable phase exists in the range of x > 0.81. Interestingly, the electron density of Ru1−xTixO2 solid solutions at Fermi level has a stronger dependence on the Ru composition, which intrinsically influences its electronic structure and optical properties. According to the basic application principle, Ru1−xTixO2 solid solutions with lower (x < 0.27) and higher (x > 0.81) solid solubility could act as suitable candidate for the applications in field electrochemistry and photocatalysis.

show abstract

“…[6][7][8][9][10] Among nanomaterials, incorporating of TiO 2 nanoparticles to Ni-P matrix has attracted tremendous interest in scientic researches owing to its outstanding properties including hardness, wear resistance 11,12 antimicrobial, 13 photocatalytic 14 and electrocatalytic property. [15][16][17] Recently, Ni and Ni-P coated steel surfaces, have been used as working electrodes in electrochemical sensor for the detection of ethanol, 16,18 methanol, formaldehyde and glucose. 17 Incorporating of TiO 2 into electroless Ni-P coating substantially enhance its electrocatalytic activity in the detection of such compounds, leading to significantly improved sensitivity of the sensors.…”

Section: Introductionmentioning

confidence: 99%

“…17 Incorporating of TiO 2 into electroless Ni-P coating substantially enhance its electrocatalytic activity in the detection of such compounds, leading to significantly improved sensitivity of the sensors. 16,17 Nonetheless, selfagglomeration of TiO 2 is unavoidable since the high surface energy of nanomaterials usually leads to poor dispersion and low homogeneity on the coated surface. Lately, sol-gel enhanced electroless plating of Ni-P was developed to prepare the highly dispersive TiO 2 nanoparticles within Ni-P composite coating, allowing for the increase of TiO 2 content in the composites.…”

Section: Introductionmentioning

confidence: 99%

TiO₂sol-embedded in electroless Ni–P coating: a novel approach for an ultra-sensitive sorbitol sensor

et al. 2016

View full text Add to dashboard Cite

show abstract

Development of TiO2-supported RuO2 composite-incorporated Ni–P electrodes for amperometric measurement of ethanol

Cited by 18 publications

References 23 publications

Phase Stability and Phase Structure of Ru–Ti–O Complex Oxide Electrocatalyst

Phase Stability and Phase Structure of Ru–Ti–O Complex Oxide Electrocatalyst

Stable structure and electronic properties of Ru₁₋_xTi_xO₂ rutile type solid solutions from DFT calculations

TiO₂sol-embedded in electroless Ni–P coating: a novel approach for an ultra-sensitive sorbitol sensor

Contact Info

Product

Resources

About

Development of TiO2-supported RuO2 composite-incorporated Ni–P electrodes for amperometric measurement of ethanol

Cited by 18 publications

References 23 publications

Phase Stability and Phase Structure of Ru–Ti–O Complex Oxide Electrocatalyst

Phase Stability and Phase Structure of Ru–Ti–O Complex Oxide Electrocatalyst

Stable structure and electronic properties of Ru1−xTixO2 rutile type solid solutions from DFT calculations

TiO2sol-embedded in electroless Ni–P coating: a novel approach for an ultra-sensitive sorbitol sensor

Contact Info

Product

Resources

About

Stable structure and electronic properties of Ru₁₋_xTi_xO₂ rutile type solid solutions from DFT calculations

TiO₂sol-embedded in electroless Ni–P coating: a novel approach for an ultra-sensitive sorbitol sensor