Designing perovskite BFO (111) membrane as an electrochemical sensor for detection of amino acids: A simulation study

Bian, Liang; Xu, Jinbao; Song, Mianxin; Dong, Faqin; Dong, Hailiang; Shi, Fa‐Nian; Wang, Lei; Ren, Wei

doi:10.1016/j.molstruc.2015.06.045

Cited by 7 publications

(3 citation statements)

References 58 publications

(37 reference statements)

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“…The electron transfer mechanism was simulated via the density functional theory (DFT) + U method based on the generalized gradient corrected Perdew–Burke–Ernzerhof functional (GGA–PBE) using density functional theory (Castep, Materials studio, Accelrys, USA) [16]. The Coulomb and screened exchange parameters ( U , J ) were set to 5 and 1 eV, respectively [17]. The electron wave functions at each k -point were expanded [18].…”

Section: Methodsmentioning

confidence: 99%

Mechanism of Fluorescence Enhancement of Biosynthesized XFe2O4–BiFeO3 (X = Cr, Mn, Co, or Ni) Membranes

Bian

Dong

et al. 2016

Nanoscale Res Lett

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Ferrites–bismuth ferrite is an intriguing option for medical diagnostic imaging device due to its magnetoelectric and enhanced near-infrared fluorescent properties. However, the embedded XFO nanoparticles are randomly located on the BFO membranes, making implementation in devices difficult. To overcome this, we present a facile bio-approach to produce XFe2O4–BiFeO3 (XFO–BFO) (X = Cr, Mn, Co, or Ni) membranes using Shewanella oneidensis MR-1. The perovskite BFO enhances the fluorescence intensity (at 660 and 832 nm) and surface potential difference (−469 ~ 385 meV and −80 ~ 525 meV) of the embedded spinel XFO. This mechanism is attributed to the interfacial coupling of the X–Fe (e− or h+) and O–O (h+) interfaces. Such a system could open up new ideas in the design of environmentally friendly fluorescent membranes.

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Section: Methodsmentioning

confidence: 99%

Mechanism of Fluorescence Enhancement of Biosynthesized XFe2O4–BiFeO3 (X = Cr, Mn, Co, or Ni) Membranes

Bian

Dong

et al. 2016

Nanoscale Res Lett

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“…45 • Catalytic combustion of natural gas (NG) or methane [46][47][48] • Reduction and control of emissions by catalytic converters in automotive exhausts of diesel vehicles 49,50 • Use as electrodes for solid oxide fuel batteries 51 • Use in a way to provide membrane properties 52 These application areas can be briefly seen in Table 2. Moreover, perovskites are commonly in use as superconductors, 54 in thermo electric devices, 55 as thick film resistors in nanoelectronics, 56 as highly sensitive photoswitches, 57 as dielectric resonators, 58 as thick film thermistors, 59 as polycrystalline organic and inorganic microwires, 60 for multilayer ceramic capacitors, 61 membrane as an electrochemical sensor for detection of amino acids, 62 as catalyst for lithium air batteries, 63 as ultrasonic transducers, 64 and for hydrogenation and hydrogenolysis of hydrocarbons (HC). 65 In the pioneering work of Voorhoeve et al 66 , referring to Meadowcraft, 67 cobalt mixed perovskite materials were used as electrode oxidation reducers, and at the same time, these could be used for the treatment of automobiles' exhaust gases.…”

Section: Perovskites and Applicationsmentioning

confidence: 99%

Perovskite catalysts for methane combustion: applications, design, effects for reactivity and partial oxidation

Başhan

Üst

2019

Int J Energy Res

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Summary This review underlines the importance of the developments in perovskite catalysts for methane combustion from the past up to the present. In this review, after a general and brief introduction to perovskites, the mechanisms of catalytic combustion of methane have been included. Moreover, current studies on perovskites have been summarized including the effects of substitutions, doped perovskites, perovskite preparation methods, and the effect of sulfur presence on perovskite catalysts. Besides, recent studies on perovskite oxides and phenomenon of oxygen (O2) deficiency, porous perovskite oxides, and nanostructured perovskites have been conducted. In addition, partial oxidation of methane (POM) has been reviewed. The loss of active component during the POM reaction can take place in the nickel catalyst, in particular. Since nickel has a lower melting point than noble metals and other active components, such as Co and Fe, in general, to deactivate nickel is easier. Compared with conventional structure, the porous structure with the unique morphology significantly enhances the catalytic activity through a much larger surface area (SA) and greater reactivity of the active sites. Furthermore, the monolithic nanoarrayed perovskite presents very good results in well‐defined faceted catalysts and takes part in porous channel hydrocarbon combustion. This review study is prepared as a guide to cover the profound knowledge of perovskite oxides catalysts, considering the methane combustion reaction mechanisms, and addresses prospective studies in this field for researchers.

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“…As interparticle distance to particle size ratio decreases, diffusion characteristic of the reaction alters from the spherical diffusion of isolated particles to planar diffusion [9]. This lead to diminished active area and catalysis activities [10][11] Electronic structure, specifically of bandgap energy of the perovskite oxide, also affects electrocatalytic activity. In general, narrow bandgap promotes electron transfer from bulk to surface of catalyst, which results in reduction of the activation energy for electrocatalytic activity [12].…”

Section: Introductionmentioning

confidence: 99%

Fe and Co-doped (Ba, Ca)TiO3 Perovskite as Potential Electrocatalysts for Glutamate Sensing

Sato¹,

Haruta²,

Sasagawa³

et al. 2019

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Barium titanate (BaTiO3) and calcium titanate (CaTiO3) are renown perovskitestructured dielectric materials. Nevertheless, utilization of BaTiO3 and CaTiO3 in sensing applications has not been extensive. This study, therefore, aims at examining potential usage of BaTiO3 and CaTiO3 as enzyme-less sensors. BaTiO3, CaTiO3, Fe-doped BaTiO3, Co-doped BaTiO3, Fe-doped CaTiO3, and Co-doped CaTiO3 (with Fe and Co 5 at%) were synthesized by solution combustion technique, compositionally and microstructurally examined, and tested for their electrocatalytic activities. All powders consisted of submicrometer-sized particles. Measurements of electrocatalytic activities in 0.01 M glutamate solution by cyclic voltammetry were performed. It was found that oxidation peaks occurred at applied voltage close to 0.6 V. Peak currents, which denoted electrocatalytic performance, were prominent in doped powders. Electrocatalytic activities of the powders were discussed with respect to chemical composition, microstructure, and electronic characteristics of the materials.

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Designing perovskite BFO (111) membrane as an electrochemical sensor for detection of amino acids: A simulation study

Cited by 7 publications

References 58 publications

Mechanism of Fluorescence Enhancement of Biosynthesized XFe2O4–BiFeO3 (X = Cr, Mn, Co, or Ni) Membranes

Mechanism of Fluorescence Enhancement of Biosynthesized XFe2O4–BiFeO3 (X = Cr, Mn, Co, or Ni) Membranes

Perovskite catalysts for methane combustion: applications, design, effects for reactivity and partial oxidation

Fe and Co-doped (Ba, Ca)TiO3 Perovskite as Potential Electrocatalysts for Glutamate Sensing

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