DMFC with a fuel transport layer using a porous carbon plate for neat methanol use

Nobuyoshi Nakagawa, Mohammad Ali Abdelkareem, Takuya Tsujiguchi, Mohd Shahbudin Mastar @ Masdar

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In direct methanol fuel cells, methanol crossover (MCO) through the electrolyte membrane is a major problem to be solved. Due to the MCO, degradation of the power generation and energy loss occur, hence a diluted methanol solution with 1 to 3 M (3 to 10 wt.%) is generally used as the fuel, which limits achieving a high energy density that is an attractive feature of the DMFC. The authors have proposed a fuel supply layer using a porous carbon plate (PCP) for DMFCs that allowed using high methanol concentrations up to neat methanol. The layer consists of a thin PCP and a gap layer that has a mechanism to supply the methanol as a vapor. This effective and practical technique is suitable for the utilization of a high methanol concentration and miniaturization of the DMFC system. In this chapter, we described the principle and practical MCO control at the fuel supply layer using the PCP. The power generation performance of the DMFCs equipped with the fuel supply layer, the mass transport characteristics through the membrane, and the development of prototype stacks are explained. The pore structure and wettability of the PCP were found to have a significant impact on the MCO. Since the fuel supply is conducted in the vapor phase, water transport through the membrane was quite different from that by the liquid feed, as well as affecting the cathode performance and reaction products. For practical applications, prototypes of the DMFC's stack with the PCP were designed and tested. The power generation profiles of the passive and active stacks are then discussed in detail in this chapter.

Original languageEnglish
Title of host publicationDirect Methanol Fuel Cells
Subtitle of host publicationApplications, Performance and Technology
PublisherNova Science Publishers, Inc.
Pages51-95
Number of pages45
ISBN (Electronic)9781536126044
ISBN (Print)9781536126037
Publication statusPublished - 1 Oct 2017

Fingerprint

Direct methanol fuel cells (DMFC)
methanol
Methanol
Carbon
carbon
Power generation
power generation
Membranes
membrane
Vapors
Pore structure
wettability
Reaction products
fuel cell
mass transport
Wetting
electrolyte
Energy dissipation
Cathodes
energy

Keywords

  • DMFC stack
  • Fuel transport layer
  • Methanol crossover
  • Neat methanol use
  • Porous carbon plate
  • Vapor feed

ASJC Scopus subject areas

  • Engineering(all)
  • Environmental Science(all)

Cite this

Nakagawa, N., Abdelkareem, M. A., Tsujiguchi, T., & Mastar @ Masdar, M. S. (2017). DMFC with a fuel transport layer using a porous carbon plate for neat methanol use. In Direct Methanol Fuel Cells: Applications, Performance and Technology (pp. 51-95). Nova Science Publishers, Inc..

DMFC with a fuel transport layer using a porous carbon plate for neat methanol use. / Nakagawa, Nobuyoshi; Abdelkareem, Mohammad Ali; Tsujiguchi, Takuya; Mastar @ Masdar, Mohd Shahbudin.

Direct Methanol Fuel Cells: Applications, Performance and Technology. Nova Science Publishers, Inc., 2017. p. 51-95.

Research output: Chapter in Book/Report/Conference proceedingChapter

Nakagawa, N, Abdelkareem, MA, Tsujiguchi, T & Mastar @ Masdar, MS 2017, DMFC with a fuel transport layer using a porous carbon plate for neat methanol use. in Direct Methanol Fuel Cells: Applications, Performance and Technology. Nova Science Publishers, Inc., pp. 51-95.
Nakagawa N, Abdelkareem MA, Tsujiguchi T, Mastar @ Masdar MS. DMFC with a fuel transport layer using a porous carbon plate for neat methanol use. In Direct Methanol Fuel Cells: Applications, Performance and Technology. Nova Science Publishers, Inc. 2017. p. 51-95
Nakagawa, Nobuyoshi ; Abdelkareem, Mohammad Ali ; Tsujiguchi, Takuya ; Mastar @ Masdar, Mohd Shahbudin. / DMFC with a fuel transport layer using a porous carbon plate for neat methanol use. Direct Methanol Fuel Cells: Applications, Performance and Technology. Nova Science Publishers, Inc., 2017. pp. 51-95
@inbook{9a1efe624af94cdfb86bfb90e1260044,
title = "DMFC with a fuel transport layer using a porous carbon plate for neat methanol use",
abstract = "In direct methanol fuel cells, methanol crossover (MCO) through the electrolyte membrane is a major problem to be solved. Due to the MCO, degradation of the power generation and energy loss occur, hence a diluted methanol solution with 1 to 3 M (3 to 10 wt.{\%}) is generally used as the fuel, which limits achieving a high energy density that is an attractive feature of the DMFC. The authors have proposed a fuel supply layer using a porous carbon plate (PCP) for DMFCs that allowed using high methanol concentrations up to neat methanol. The layer consists of a thin PCP and a gap layer that has a mechanism to supply the methanol as a vapor. This effective and practical technique is suitable for the utilization of a high methanol concentration and miniaturization of the DMFC system. In this chapter, we described the principle and practical MCO control at the fuel supply layer using the PCP. The power generation performance of the DMFCs equipped with the fuel supply layer, the mass transport characteristics through the membrane, and the development of prototype stacks are explained. The pore structure and wettability of the PCP were found to have a significant impact on the MCO. Since the fuel supply is conducted in the vapor phase, water transport through the membrane was quite different from that by the liquid feed, as well as affecting the cathode performance and reaction products. For practical applications, prototypes of the DMFC's stack with the PCP were designed and tested. The power generation profiles of the passive and active stacks are then discussed in detail in this chapter.",
keywords = "DMFC stack, Fuel transport layer, Methanol crossover, Neat methanol use, Porous carbon plate, Vapor feed",
author = "Nobuyoshi Nakagawa and Abdelkareem, {Mohammad Ali} and Takuya Tsujiguchi and {Mastar @ Masdar}, {Mohd Shahbudin}",
year = "2017",
month = "10",
day = "1",
language = "English",
isbn = "9781536126037",
pages = "51--95",
booktitle = "Direct Methanol Fuel Cells",
publisher = "Nova Science Publishers, Inc.",

}

TY - CHAP

T1 - DMFC with a fuel transport layer using a porous carbon plate for neat methanol use

AU - Nakagawa, Nobuyoshi

AU - Abdelkareem, Mohammad Ali

AU - Tsujiguchi, Takuya

AU - Mastar @ Masdar, Mohd Shahbudin

PY - 2017/10/1

Y1 - 2017/10/1

N2 - In direct methanol fuel cells, methanol crossover (MCO) through the electrolyte membrane is a major problem to be solved. Due to the MCO, degradation of the power generation and energy loss occur, hence a diluted methanol solution with 1 to 3 M (3 to 10 wt.%) is generally used as the fuel, which limits achieving a high energy density that is an attractive feature of the DMFC. The authors have proposed a fuel supply layer using a porous carbon plate (PCP) for DMFCs that allowed using high methanol concentrations up to neat methanol. The layer consists of a thin PCP and a gap layer that has a mechanism to supply the methanol as a vapor. This effective and practical technique is suitable for the utilization of a high methanol concentration and miniaturization of the DMFC system. In this chapter, we described the principle and practical MCO control at the fuel supply layer using the PCP. The power generation performance of the DMFCs equipped with the fuel supply layer, the mass transport characteristics through the membrane, and the development of prototype stacks are explained. The pore structure and wettability of the PCP were found to have a significant impact on the MCO. Since the fuel supply is conducted in the vapor phase, water transport through the membrane was quite different from that by the liquid feed, as well as affecting the cathode performance and reaction products. For practical applications, prototypes of the DMFC's stack with the PCP were designed and tested. The power generation profiles of the passive and active stacks are then discussed in detail in this chapter.

AB - In direct methanol fuel cells, methanol crossover (MCO) through the electrolyte membrane is a major problem to be solved. Due to the MCO, degradation of the power generation and energy loss occur, hence a diluted methanol solution with 1 to 3 M (3 to 10 wt.%) is generally used as the fuel, which limits achieving a high energy density that is an attractive feature of the DMFC. The authors have proposed a fuel supply layer using a porous carbon plate (PCP) for DMFCs that allowed using high methanol concentrations up to neat methanol. The layer consists of a thin PCP and a gap layer that has a mechanism to supply the methanol as a vapor. This effective and practical technique is suitable for the utilization of a high methanol concentration and miniaturization of the DMFC system. In this chapter, we described the principle and practical MCO control at the fuel supply layer using the PCP. The power generation performance of the DMFCs equipped with the fuel supply layer, the mass transport characteristics through the membrane, and the development of prototype stacks are explained. The pore structure and wettability of the PCP were found to have a significant impact on the MCO. Since the fuel supply is conducted in the vapor phase, water transport through the membrane was quite different from that by the liquid feed, as well as affecting the cathode performance and reaction products. For practical applications, prototypes of the DMFC's stack with the PCP were designed and tested. The power generation profiles of the passive and active stacks are then discussed in detail in this chapter.

KW - DMFC stack

KW - Fuel transport layer

KW - Methanol crossover

KW - Neat methanol use

KW - Porous carbon plate

KW - Vapor feed

UR - http://www.scopus.com/inward/record.url?scp=85044427660&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85044427660&partnerID=8YFLogxK

M3 - Chapter

SN - 9781536126037

SP - 51

EP - 95

BT - Direct Methanol Fuel Cells

PB - Nova Science Publishers, Inc.

ER -