Enhanced electrical conductivity in mesoporous 3D indium-tin oxide materials

Davis, Marauo; Zhang, Kun; Wang, Shiren; Hope‐Weeks, Louisa J.

doi:10.1039/c2jm34744j

Cited by 22 publications

(24 citation statements)

References 40 publications

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“…Another conductive oxide which can be used as support material for electrocatalysts is Sn doped In oxide (ITO), for which synthesis procedures are reported that result in large surface areas of more than 100 m 2 g −1 . The conductivity of mesoporous ITO samples is commonly in the range of 10 −3 to 9.5 S cm −1 . The values mentioned so far for oxidic support materials are already close to those of Vulcan, a common carbon based support material, which provides a BET surface area of 235 m 2 g −1 and a conductivity of 21.6 S cm −1 .…”

Section: Oer Catalystsmentioning

confidence: 87%

Electrocatalytic Oxygen Evolution Reaction in Acidic Environments – Reaction Mechanisms and Catalysts

Reier

Nong

Teschner

et al. 2016

Advanced Energy Materials

941

828

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The low efficiency of the electrocatalytic oxidation of water to O2 (oxygen evolution reaction‐OER) is considered as one of the major roadblocks for the storage of electricity from renewable sources in form of molecular fuels like H2 or hydrocarbons. Especially in acidic environments, compatible with the powerful proton exchange membrane (PEM), an earth‐abundant OER catalyst that combines high activity and high stability is still unknown. Current PEM‐compatible OER catalysts still rely mostly on Ir and/or Ru as active components, which are both very scarce elements of the platinum group. Hence, the Ir and/or Ru amount in OER catalysts has to be strictly minimized. Unfortunately, the OER mechanism, which is the most powerful tool for OER catalyst optimization, still remains unclear. In this review, we first summarize the current state of our understanding of the OER mechanism on PEM‐compatible heterogeneous electrocatalysts, before we compare and contrast that to the OER mechanism on homogenous catalysts. Thereafter, an overview over monometallic OER catalysts is provided to obtain insights into structure‐function relations followed by a review of current material optimization concepts and support materials. Moreover, missing links required to complete the mechanistic picture as well as the most promising material optimization concepts are pointed out.

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Section: Oer Catalystsmentioning

confidence: 87%

Electrocatalytic Oxygen Evolution Reaction in Acidic Environments – Reaction Mechanisms and Catalysts

Reier

Nong

Teschner

et al. 2016

Advanced Energy Materials

941

828

View full text Add to dashboard Cite

show abstract

“…The epoxide addition method is also useful for preparing multi-metal-oxide aerogels. According to this idea, CuO-NiO aerogel and indium-tin oxide (ITO) aerogel were synthesized to be designed as the catalyst and conductive oxide, respectively [ 131 , 132 ].…”

Section: Preparationmentioning

confidence: 99%

“…As mention in previous sections, a great variety of the aerogels have been prepared before, which provides plenty of techniques to design and prepare composite aerogels with practical and smart functions. For example, ITO aerogel, YSZ (yttria-stabilized zirconia) aerogel and binary oxide aerogel have been designed as oxide conductor and catalyst [ 131 , 132 , 155 , 156 ]. Carbonized-RF aerogel is, all the while, regarded as one of highly-efficient electrode materials for supercapacitor or capacitive deionization.…”

Section: Research Tendencymentioning

confidence: 99%

A Special Material or a New State of Matter: A Review and Reconsideration of the Aerogel

et al. 2013

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The ultrahighly nanoporous aerogel is recognized as a state of matter rather than as a functional material, because of its qualitative differences in bulk properties, transitional density and enthalpy between liquid and gas, and diverse chemical compositions. In this review, the characteristics, classification, history and preparation of the aerogel were introduced. More attention was paid to the sol-gel method for preparing different kinds of aerogels, given its important role on bridging the synthetic parameters with the properties. At last, preparation of a novel single-component aerogel, design of a composite aerogel and industrial application of the aerogel were regarded as the research tendency of the aerogel state in the near future.

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“…We specifically display the nonlinear saturable absorption properties of one characteristic low-dimensional material, indium tin oxide nanowire arrays (ITO-NWAs) at 2.8 μm. ITO belongs to one of the degenerate semiconductor transparent conducting oxides, and possesses great optical nonlinear properties, high damage threshold and high modulation speed [ 24 , 25 ]. The spectral region, in which the real component of dielectric permittivity nears zero, is termed as an epsilon-near-zero (ɛ~0, ENZ) region, exhibiting infinite phase velocity of propagating light in material, large optical nonlinearity and near-zero refractive index [ 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Indium Tin Oxide Nanowire Arrays as a Saturable Absorber for Mid-Infrared Er:Ca0.8Sr0.2F2 Laser

et al. 2022

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We demonstrated a passively Q-switched Er:Ca0.8Sr0.2F2 laser with indium tin oxide nanowire arrays as an optical modulator in the mid-infrared region. In the Q-switched regime, the maximum output power of 58 mW with a slope efficiency of 18.3% was acquired. Meanwhile, the minimum pulse duration and highest repetition rate of the stable pulse trains were 490 ns and 17.09 kHz, corresponding to single pulse energy of 3.4 μJ and peak power of 6.93 W, respectively. To the best of our knowledge it was the first time that indium tin oxide nanowire arrays were employed as a saturable absorber to make pulse lasers carried out at 2.8 μm. The experimental data show that indium tin oxide nanowire arrays can be employed as a competitive candidate for saturable absorber in the field of mid-infrared solid-state lasers.

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Enhanced electrical conductivity in mesoporous 3D indium-tin oxide materials

Cited by 22 publications

References 40 publications

Electrocatalytic Oxygen Evolution Reaction in Acidic Environments – Reaction Mechanisms and Catalysts

Electrocatalytic Oxygen Evolution Reaction in Acidic Environments – Reaction Mechanisms and Catalysts

A Special Material or a New State of Matter: A Review and Reconsideration of the Aerogel

Indium Tin Oxide Nanowire Arrays as a Saturable Absorber for Mid-Infrared Er:Ca0.8Sr0.2F2 Laser

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