Pulsed neutron imaging for differentiation of ice and liquid water towards fuel cell vehicle applications

Higuchi, Yuki; Setoyama, Daigo; Isegawa, Kazuhisa; Tsuchikawa, Y.; Matsumoto, Yoshihiro; Parker, Joseph D.; Shinohara, T.; Nagai, Yasutaka

doi:10.1039/d0cp03887c

Cited by 13 publications

(8 citation statements)

References 31 publications

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“…(A video of the process is available in the Supporting Information of ref .) The cross sections of ice and liquid water are also different at low energies, and this is used to distinguish between them in a fuel cell …”

Section: Other Neutron Scattering Techniques For Catalysis Researchmentioning

confidence: 99%

“…The cross sections of ice and liquid water are also different at low energies, and this is used to distinguish between them in a fuel cell. 466 The conversion of CO 2 with hydrogen into methane is an important step in the power-to-gas concept for the seasonal storage of renewable energy. The process is the Sabatier reaction (4H 2 + CO 2 → 2H 2 O + CH 4 ) and uses a supported nickel catalyst.…”

Section: Neutron Imaging Of Catalystsmentioning

confidence: 99%

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Neutron Scattering Studies of Heterogeneous Catalysis

Yu,

Cheng,

et al. 2023

Chem. Rev.

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Section: Other Neutron Scattering Techniques For Catalysis Researchmentioning

confidence: 99%

Section: Neutron Imaging Of Catalystsmentioning

confidence: 99%

Neutron Scattering Studies of Heterogeneous Catalysis

Yu,

Cheng,

et al. 2023

Chem. Rev.

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“…In this context, a major use for neutron imaging has been visualizing water flow, and its management, inside PEMFC [147,[150][151][152][153]. By making use of the neutron wavelength-dependent transmission of ice and liquid water it is possible to distinguish the two in situ inside a PEMFC [154]. This offers possibilities for chemically resolved spectra.…”

Section: Neutron Imagingmentioning

confidence: 99%

Net Zero and Catalysis: How Neutrons Can Help

Parker

Lennon

2021

Physchem

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Net Zero has the aim of achieving equality between the amount of greenhouse gas emissions produced and the amount removed from the atmosphere. There is widespread acceptance that for Net Zero to be achievable, chemistry, and hence catalysis, must play a major role. Most current studies of catalysts and catalysis employ a combination of physical methods, imaging techniques and spectroscopy to provide insight into the catalyst structure and function. One of the methods used is neutron scattering and this is the focus of this Perspective. Here, we show how neutron methods are being used to study reactions and processes that are directly relevant to achieving Net Zero, such as methane reforming, Fischer–Tropsch synthesis, ammonia and methanol production and utilization, bio-mass upgrading, fuel cells and CO2 capture and exploitation. We conclude by describing some other areas that offer opportunities.

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“…Previous researchers have attempted to use various visualization detection methods to study the internal reaction mechanism information of fuel cells. In general, several detection methods such as magnetic effect, [ 4 ] X‐ray tomographic microscopy, [ 5 ] neutron radiography, [ 6 ] and the transparent end plate [ 7 ] have been reported to study the distribution and transport of water content inside the fuel cells. Although these methods are convenient for direct monitoring, the bulky and elaborate equipment is only suitable for the laboratory, so it is not suitable for the onboard application.…”

Section: Introductionmentioning

confidence: 99%

An In Situ Signal Amplification Sensor for Measuring In‐Plane Current Density Distribution in a Proton Exchange Membrane Fuel Cell

Wu,

Wang,

Liu

et al. 2023

Energy Tech

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Inconsistency of current density distribution in‐plane in fuel cells is a common phenomenon. This study develops a novel highly‐integrated sensor with the feature of signal in‐situ amplification for measuring in‐plane current density. First, the sensor is designed and fabricated based on the idea of in‐situ amplification of in‐plane signals before transmission. Then, the sensor accuracy is quantitatively evaluated prior to fuel cell experiments based on a single‐point calibration approach. Finally, the distribution of in‐plane current density is observed using the sensor in the fuel cell test system. Additionally, the measurement accuracy of the circuit current in the test bench is compared by introducing the calibrated segment average amplification factors. The results indicate that these signals amplified by the sensor can effectively withstand the effects of signal transmission loss and interference, and it can be determined that the measurement accuracy of the sensor is controlled within 97% in the small current range and within 98% in the non‐small current range in normal operation. This work provides a feasible solution for in‐situ measurements of in‐plane current density, with significant improvements in signal acquisition, structural matching, and fabrication process compared to existing such sensors.This article is protected by copyright. All rights reserved.

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Pulsed neutron imaging for differentiation of ice and liquid water towards fuel cell vehicle applications

Abstract: Water/ice identification images throughout the thawing process of ice in a metal capillary by using a pulsed neutron source.

Cited by 13 publications

References 31 publications

Neutron Scattering Studies of Heterogeneous Catalysis

Neutron Scattering Studies of Heterogeneous Catalysis

Net Zero and Catalysis: How Neutrons Can Help

An In Situ Signal Amplification Sensor for Measuring In‐Plane Current Density Distribution in a Proton Exchange Membrane Fuel Cell

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