Nickel nanorods over nickel foam as standalone anode for direct alkaline methanol and ethanol fuel cell

Tasnim Eisa; Hend Omar Mohamed; Yun Jeong Choi; Sung Gwan Park; Rafeeah Ali; Mohammad Ali Abdelkareem; Sang Eun Oh; Kyu Jung Chae

doi:10.1016/j.ijhydene.2019.08.071

Nickel nanorods over nickel foam as standalone anode for direct alkaline methanol and ethanol fuel cell

Tasnim Eisa, Hend Omar Mohamed, Yun Jeong Choi, Sung Gwan Park, Rafeeah Ali, Mohammad Ali Abdelkareem, Sang Eun Oh, Kyu Jung Chae^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

A highly electroactive nickel nanorod (NNR)/nickel foam (NF) electrode was fabricated for direct alcohol fuel cells (DAFCs) using a simple and cost-effective hydrothermal process. The Ni/NiO nanorods were successfully grown on the surface of an NF electrode, which strongly enhanced the anode wettability and increased surface area by 18 times (11.9 m² g⁻¹), resulting in interfacial polarization resistance reduction. The NNR/NF electrode shows high electro-catalytic activity and great stability during alcohol oxidation. The current densities obtained for NNR/NF were four (479 mA cm⁻²) and six (543 mA cm⁻²) times higher than that for pristine NF in the cases of methanol and ethanol oxidations, respectively. This high current density can be attributed to the superhydrophilic surface of the Ni/NiO nanorods and corresponding high mass transfer capability between the electrolytes and Ni/NiO nanorods embedded on the surface of the electrodes. This study presents a new approach for using the novel NNR/NF as a cheap and high performance anode in DAFCs.

Original language	English (US)
Pages (from-to)	5948-5959
Number of pages	12
Journal	International Journal of Hydrogen Energy
Volume	45
Issue number	10
DOIs	https://doi.org/10.1016/j.ijhydene.2019.08.071
State	Published - Feb 21 2020

Keywords

Direct alcohol fuel cells
Electro-catalytic activity
Ethanol oxidation
Methanol oxidation
Nanorods
Nickel foam

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2019.08.071

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title = "Nickel nanorods over nickel foam as standalone anode for direct alkaline methanol and ethanol fuel cell",

abstract = "A highly electroactive nickel nanorod (NNR)/nickel foam (NF) electrode was fabricated for direct alcohol fuel cells (DAFCs) using a simple and cost-effective hydrothermal process. The Ni/NiO nanorods were successfully grown on the surface of an NF electrode, which strongly enhanced the anode wettability and increased surface area by 18 times (11.9 m2 g−1), resulting in interfacial polarization resistance reduction. The NNR/NF electrode shows high electro-catalytic activity and great stability during alcohol oxidation. The current densities obtained for NNR/NF were four (479 mA cm−2) and six (543 mA cm−2) times higher than that for pristine NF in the cases of methanol and ethanol oxidations, respectively. This high current density can be attributed to the superhydrophilic surface of the Ni/NiO nanorods and corresponding high mass transfer capability between the electrolytes and Ni/NiO nanorods embedded on the surface of the electrodes. This study presents a new approach for using the novel NNR/NF as a cheap and high performance anode in DAFCs.",

keywords = "Direct alcohol fuel cells, Electro-catalytic activity, Ethanol oxidation, Methanol oxidation, Nanorods, Nickel foam",

author = "Tasnim Eisa and Mohamed, {Hend Omar} and Choi, {Yun Jeong} and Park, {Sung Gwan} and Rafeeah Ali and Abdelkareem, {Mohammad Ali} and Oh, {Sang Eun} and Chae, {Kyu Jung}",

note = "Funding Information: This research was funded by Korea Ministry of Environment as Global Top Project (Grant No. 2016002190008 ), and in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1A2C1006356 ). Publisher Copyright: {\textcopyright} 2019 Hydrogen Energy Publications LLC",

year = "2020",

month = feb,

day = "21",

doi = "10.1016/j.ijhydene.2019.08.071",

language = "English (US)",

volume = "45",

pages = "5948--5959",

journal = "International Journal of Hydrogen Energy",

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TY - JOUR

T1 - Nickel nanorods over nickel foam as standalone anode for direct alkaline methanol and ethanol fuel cell

AU - Eisa, Tasnim

AU - Mohamed, Hend Omar

AU - Choi, Yun Jeong

AU - Park, Sung Gwan

AU - Ali, Rafeeah

AU - Abdelkareem, Mohammad Ali

AU - Oh, Sang Eun

AU - Chae, Kyu Jung

N1 - Funding Information: This research was funded by Korea Ministry of Environment as Global Top Project (Grant No. 2016002190008 ), and in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2019R1A2C1006356 ). Publisher Copyright: © 2019 Hydrogen Energy Publications LLC

PY - 2020/2/21

Y1 - 2020/2/21

N2 - A highly electroactive nickel nanorod (NNR)/nickel foam (NF) electrode was fabricated for direct alcohol fuel cells (DAFCs) using a simple and cost-effective hydrothermal process. The Ni/NiO nanorods were successfully grown on the surface of an NF electrode, which strongly enhanced the anode wettability and increased surface area by 18 times (11.9 m2 g−1), resulting in interfacial polarization resistance reduction. The NNR/NF electrode shows high electro-catalytic activity and great stability during alcohol oxidation. The current densities obtained for NNR/NF were four (479 mA cm−2) and six (543 mA cm−2) times higher than that for pristine NF in the cases of methanol and ethanol oxidations, respectively. This high current density can be attributed to the superhydrophilic surface of the Ni/NiO nanorods and corresponding high mass transfer capability between the electrolytes and Ni/NiO nanorods embedded on the surface of the electrodes. This study presents a new approach for using the novel NNR/NF as a cheap and high performance anode in DAFCs.

AB - A highly electroactive nickel nanorod (NNR)/nickel foam (NF) electrode was fabricated for direct alcohol fuel cells (DAFCs) using a simple and cost-effective hydrothermal process. The Ni/NiO nanorods were successfully grown on the surface of an NF electrode, which strongly enhanced the anode wettability and increased surface area by 18 times (11.9 m2 g−1), resulting in interfacial polarization resistance reduction. The NNR/NF electrode shows high electro-catalytic activity and great stability during alcohol oxidation. The current densities obtained for NNR/NF were four (479 mA cm−2) and six (543 mA cm−2) times higher than that for pristine NF in the cases of methanol and ethanol oxidations, respectively. This high current density can be attributed to the superhydrophilic surface of the Ni/NiO nanorods and corresponding high mass transfer capability between the electrolytes and Ni/NiO nanorods embedded on the surface of the electrodes. This study presents a new approach for using the novel NNR/NF as a cheap and high performance anode in DAFCs.

KW - Direct alcohol fuel cells

KW - Electro-catalytic activity

KW - Ethanol oxidation

KW - Methanol oxidation

KW - Nanorods

KW - Nickel foam

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SN - 0360-3199

VL - 45

SP - 5948

EP - 5959

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 10

ER -

Nickel nanorods over nickel foam as standalone anode for direct alkaline methanol and ethanol fuel cell

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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