Low Pt loading, wide area electrospray deposition technique for highly efficient hydrogen evolving electrode in photoelectrochemical cell

Yadav, J.B.; Park, Jong-Won; Jung, Kwang‐Deog; Joo, Oh‐Shim

doi:10.1016/j.ijhydene.2010.02.028

Cited by 31 publications

(10 citation statements)

References 26 publications

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“…Furthermore, by adding a mixed phase MnO 2 in the catalyst layer, the electrode shows the related hydrophilic surface characteristics, and the advancing contact angle, receding contact angle and contact angle decrease to 121.91 • , 117.77 • and 106.64 • , respectively. After light illumination, a significant light-induced hydrogen generation by CH 3 The use of solar-induced photocatalytic reactions to conduct water splitting to produce hydrogen is currently one of the world's most important alternative energy technologies being developed. In addition to reducing mankind's demand for fossil fuels, the hydrogen energy can also convert solar energy into another form of energy and be stored.…”

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confidence: 99%

“…It needs only the light to be irradiated on the photoelectrode end, taking advantage of the semiconductor materials on the photoelectrode surface to absorb the photon energy and, thus, stimulate the electron-hole pairs, so the water-splitting reaction could be started. [2][3][4][5] Nevertheless, when energy level of the H 2 /H 2 O redox reaction is higher than the Fermi-energy of the cathode electrode, an applied bias is still necessary for a two electrode configuration cell. 6 The key to producing hydrogen from photocatalytic water-splitting lies in the photocatalytic material.…”

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confidence: 99%

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Mixed-Phase Manganese Dioxide and Functionalized Graphite Supported Platinum/Manganese Dioxide Catalyst for Light-Driven Photoelectrochemical Cell

Pai¹,

Tsai²,

Kao³

2014

J. Electrochem. Soc.

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This study investigates the feasibility of using a mixed phase manganese dioxide (MnO 2 ) in the graphite supported Pt catalyst layer to perform a light-driven photoelectrochemical cell. The effects of the conditions of preparing a mixed phase MnO 2 on their properties are evaluated. By adjusting the precursor concentrations down to 0.1 M, the multi-diffraction peaks of α−, β−, ε− and γ−MnO 2 can be obtained and shown to display strong vibrational bands related to the pyrolusite and ramsdellite structure. In particular, a significant enhancement on the photodegradation test has been observed with an optimum degradation efficiency ratio (monomeric/dimeric) of 1.089. Furthermore, by adding a mixed phase MnO 2 in the catalyst layer, the electrode shows the related hydrophilic surface characteristics, and the advancing contact angle, receding contact angle and contact angle decrease to 121.91 • , 117.77 • and 106.64 • , respectively. After light illumination, a significant light-induced hydrogen generation by CH 3 OH aqueous solution splitting is observed. The incorporation of mixed phase MnO 2 within graphite supported Pt catalyst layer largely enhances the photoelectrochemical cell performance from 2.18 mW cm −2 to 2.92 mW cm −2 . The use of solar-induced photocatalytic reactions to conduct water splitting to produce hydrogen is currently one of the world's most important alternative energy technologies being developed. In addition to reducing mankind's demand for fossil fuels, the hydrogen energy can also convert solar energy into another form of energy and be stored. According to the literature, the photocatalytic water-splitting reaction system can be divided into tri-electrodes and bi-electrodes; 1 the three-pole electrode system consists of a semiconductor photoanode, platinum counter electrode and reference electrode. The process of the photocatalytic reaction must be subject to an additional bias voltage for it to be carried out. However, the electron-transfer kinetics and cell/electrolyte resistance limit the efficiency of H 2 generation in such cells. In contrast, the membrane electrode assembly as the main structure of the bi-electrodes photoelectrochemical cell could be started without additional bias. It needs only the light to be irradiated on the photoelectrode end, taking advantage of the semiconductor materials on the photoelectrode surface to absorb the photon energy and, thus, stimulate the electron-hole pairs, so the water-splitting reaction could be started. 2-5 Nevertheless, when energy level of the H 2 /H 2 O redox reaction is higher than the Fermi-energy of the cathode electrode, an applied bias is still necessary for a two electrode configuration cell. 6 The key to producing hydrogen from photocatalytic water-splitting lies in the photocatalytic material. The energy of the electron-holes that are generated through the photocatalytic material being stimulated must be identical to the electric potential of the oxidation-reduction reaction. Only then can the oxidation-reduction reaction start t...

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mentioning

confidence: 99%

mentioning

confidence: 99%

Mixed-Phase Manganese Dioxide and Functionalized Graphite Supported Platinum/Manganese Dioxide Catalyst for Light-Driven Photoelectrochemical Cell

Pai¹,

Tsai²,

Kao³

2014

J. Electrochem. Soc.

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“…However, Pt is not preferred in industrial processes due to its high price [21,22]. So, it is very significant to obtain high efficiency by using less noble metals [23]. According to the literature, studies on electrodes such as Cu / Ni / NiZn-PtRu, mild steel / Ni / NiZn-Pt, and NiCoZn-Pt have shown that they are catalytically efficient [24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

ZIF-Derived CuPt@Ag as Catalyst for Hydrogen Evolution Reaction

Yerlikaya¹,

Koca²,

Yazıcı³

et al. 2021

J. Basic Appl. Sci.

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In this study, ZIF-Cu and ZIF-Pt were synthesized from 2-methyl imidazole with Cu and Pt salts in the methanol medium. The synthesized ZIFs were annealed to produce a CuPt nanocatalyst in the tube furnace. The Cu: Pt (3:1) nanocatalyst slurry was deposited on silver deposited carbon rod electrode (CE). The hydrogen evolution reaction (HER) activities for the catalyst were measured in a 1 M KOH solution by using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The morphological structure and composition of CuPt@Ag have been studied by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDX). It was observed that the prepared electrode surface had not only a homogeneous and porous structure but also nano-sized particles distributed on the surface. It has been observed that the current is increased from 5.22 mA cm-2 to 25.80 mA cm-2 under -1.55 V potential at CuPt@Ag electrode. The high current density shows that HER efficiency increases on the prepared catalyst.

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“…Platinum is a well-studied cathode material for hydrogen production [13,14], and there is need for an alternative material for anode electrode. Platinum is a well-studied cathode material for hydrogen production [13,14], and there is need for an alternative material for anode electrode.…”

Section: Introductionmentioning

confidence: 99%

“…In this system, solar to hydrogen production efficiency is mainly dependent on the catalytic activity of electrode materials. Platinum is a well-studied cathode material for hydrogen production [13,14], and there is need for an alternative material for anode electrode.…”

Section: Introductionmentioning

confidence: 99%

Electrospray-deposited nickel ferrite thin film electrode for hydrogen production in PV-assisted water electrolysis system

Chae

Yadav

Joo

2011

Int. J. Energy Res.

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SUMMARY Nanocrystalline Ni ferrite thin film was prepared by electrospray deposition technique and characterized by different analytical techniques at different annealing temperatures. All these films were studied by photovoltaic‐assisted water electrolysis system for solar to hydrogen production efficiency measurement. Highly dense and uniform surface morphology was observed in as‐deposited film, which changed into agglomerated nanocrystalline grains of irregular size and shape with change in annealing temperature. The X‐ray photoelectron spectroscopy study showed that the as‐deposited film was a mixture of an oxyhydroxide form of iron and an Ni2O3 form of nickel, whereas it changed into ferrite phase with change in annealing temperature. The as‐deposited film was observed to be of amorphous phase, which changed to crystalline cubic spinel structure with change in annealing temperature. The solar to hydrogen production efficiency was found to increase in a film with an increase in annealing temperature. The film annealed at 500°C showed a high solar to hydrogen production efficiency (8.29%) with constant performance of up to initial 500 h. Thereafter, the performance slowly declined by 11% when up to 1000 h. Copyright © 2011 John Wiley & Sons, Ltd.

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Low Pt loading, wide area electrospray deposition technique for highly efficient hydrogen evolving electrode in photoelectrochemical cell

Cited by 31 publications

References 26 publications

Mixed-Phase Manganese Dioxide and Functionalized Graphite Supported Platinum/Manganese Dioxide Catalyst for Light-Driven Photoelectrochemical Cell

Mixed-Phase Manganese Dioxide and Functionalized Graphite Supported Platinum/Manganese Dioxide Catalyst for Light-Driven Photoelectrochemical Cell

ZIF-Derived CuPt@Ag as Catalyst for Hydrogen Evolution Reaction

Electrospray-deposited nickel ferrite thin film electrode for hydrogen production in PV-assisted water electrolysis system

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