Intrinsically stretchable fuel cell based on enokitake-like standing gold nanowires

Qingfeng Zhai, Yiyi Liu, Ren Wang, Yan Wang, Quanxia Lyu, Shu Gong, Joseph Wang, George P. Simon, Wenlong Cheng

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Conventional fuel cells are based on rigid electrodes, limiting their applications in wearable and implantable electronics. Here, it is demonstrated that enokitake-like vertically-aligned standing gold nanowires (v-AuNWs) can also serve as powerful platform for stretchable fuel cells by using ethanol as model system. Unlike traditional fuel cell electrodes, the v-AuNWs have “Janus Morphology” on both sides of the film and also are highly stretchable. The comparative studies demonstrate that tail side exposed v-AuNWs based stretchable electrodes outperform the head-side exposed v-AuNWs toward the electro-oxidation of ethanol due to the direct exposure of high-surface-area nanowires to the fuels. Therefore, a stretchable fuel cell is fabricated utilizing tail side based interdigitated electrodes, where v-AuNWs and Pt black modified v-AuNWs serve as the anode and cathode, respectively. The as-prepared stretchable fuel cell exhibits good overall performance, including high power density, current density, open-circuit voltage, stretchability, and durability. Most importantly, a wearable fuel cell is also achieved by integrating tattoo-like interdigitated electrodes with a thin layer of sponge as a fuel container, exhibiting good performance under various deformations (compression, stretching, and twisting). Such attractive performance in conjunction with skin-like in-plane design indicates its great potential to power the next-generation of wearable and implantable devices.

Original languageEnglish
Article number1903512
Number of pages8
JournalAdvanced Energy Materials
Volume10
Issue number2
DOIs
Publication statusPublished - 14 Jan 2020

Keywords

  • electro-oxidation
  • flexible
  • fuel cells
  • gold nanowires
  • stretchable

Cite this

Zhai, Qingfeng ; Liu, Yiyi ; Wang, Ren ; Wang, Yan ; Lyu, Quanxia ; Gong, Shu ; Wang, Joseph ; Simon, George P. ; Cheng, Wenlong. / Intrinsically stretchable fuel cell based on enokitake-like standing gold nanowires. In: Advanced Energy Materials. 2020 ; Vol. 10, No. 2.
@article{5bea37c364a248749f2cd5028b3313ab,
title = "Intrinsically stretchable fuel cell based on enokitake-like standing gold nanowires",
abstract = "Conventional fuel cells are based on rigid electrodes, limiting their applications in wearable and implantable electronics. Here, it is demonstrated that enokitake-like vertically-aligned standing gold nanowires (v-AuNWs) can also serve as powerful platform for stretchable fuel cells by using ethanol as model system. Unlike traditional fuel cell electrodes, the v-AuNWs have “Janus Morphology” on both sides of the film and also are highly stretchable. The comparative studies demonstrate that tail side exposed v-AuNWs based stretchable electrodes outperform the head-side exposed v-AuNWs toward the electro-oxidation of ethanol due to the direct exposure of high-surface-area nanowires to the fuels. Therefore, a stretchable fuel cell is fabricated utilizing tail side based interdigitated electrodes, where v-AuNWs and Pt black modified v-AuNWs serve as the anode and cathode, respectively. The as-prepared stretchable fuel cell exhibits good overall performance, including high power density, current density, open-circuit voltage, stretchability, and durability. Most importantly, a wearable fuel cell is also achieved by integrating tattoo-like interdigitated electrodes with a thin layer of sponge as a fuel container, exhibiting good performance under various deformations (compression, stretching, and twisting). Such attractive performance in conjunction with skin-like in-plane design indicates its great potential to power the next-generation of wearable and implantable devices.",
keywords = "electro-oxidation, flexible, fuel cells, gold nanowires, stretchable",
author = "Qingfeng Zhai and Yiyi Liu and Ren Wang and Yan Wang and Quanxia Lyu and Shu Gong and Joseph Wang and Simon, {George P.} and Wenlong Cheng",
year = "2020",
month = "1",
day = "14",
doi = "10.1002/aenm.201903512",
language = "English",
volume = "10",
journal = "Advanced Energy Materials",
issn = "1614-6832",
publisher = "Wiley-Blackwell",
number = "2",

}

Intrinsically stretchable fuel cell based on enokitake-like standing gold nanowires. / Zhai, Qingfeng; Liu, Yiyi; Wang, Ren; Wang, Yan; Lyu, Quanxia; Gong, Shu; Wang, Joseph; Simon, George P.; Cheng, Wenlong.

In: Advanced Energy Materials, Vol. 10, No. 2, 1903512, 14.01.2020.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Intrinsically stretchable fuel cell based on enokitake-like standing gold nanowires

AU - Zhai, Qingfeng

AU - Liu, Yiyi

AU - Wang, Ren

AU - Wang, Yan

AU - Lyu, Quanxia

AU - Gong, Shu

AU - Wang, Joseph

AU - Simon, George P.

AU - Cheng, Wenlong

PY - 2020/1/14

Y1 - 2020/1/14

N2 - Conventional fuel cells are based on rigid electrodes, limiting their applications in wearable and implantable electronics. Here, it is demonstrated that enokitake-like vertically-aligned standing gold nanowires (v-AuNWs) can also serve as powerful platform for stretchable fuel cells by using ethanol as model system. Unlike traditional fuel cell electrodes, the v-AuNWs have “Janus Morphology” on both sides of the film and also are highly stretchable. The comparative studies demonstrate that tail side exposed v-AuNWs based stretchable electrodes outperform the head-side exposed v-AuNWs toward the electro-oxidation of ethanol due to the direct exposure of high-surface-area nanowires to the fuels. Therefore, a stretchable fuel cell is fabricated utilizing tail side based interdigitated electrodes, where v-AuNWs and Pt black modified v-AuNWs serve as the anode and cathode, respectively. The as-prepared stretchable fuel cell exhibits good overall performance, including high power density, current density, open-circuit voltage, stretchability, and durability. Most importantly, a wearable fuel cell is also achieved by integrating tattoo-like interdigitated electrodes with a thin layer of sponge as a fuel container, exhibiting good performance under various deformations (compression, stretching, and twisting). Such attractive performance in conjunction with skin-like in-plane design indicates its great potential to power the next-generation of wearable and implantable devices.

AB - Conventional fuel cells are based on rigid electrodes, limiting their applications in wearable and implantable electronics. Here, it is demonstrated that enokitake-like vertically-aligned standing gold nanowires (v-AuNWs) can also serve as powerful platform for stretchable fuel cells by using ethanol as model system. Unlike traditional fuel cell electrodes, the v-AuNWs have “Janus Morphology” on both sides of the film and also are highly stretchable. The comparative studies demonstrate that tail side exposed v-AuNWs based stretchable electrodes outperform the head-side exposed v-AuNWs toward the electro-oxidation of ethanol due to the direct exposure of high-surface-area nanowires to the fuels. Therefore, a stretchable fuel cell is fabricated utilizing tail side based interdigitated electrodes, where v-AuNWs and Pt black modified v-AuNWs serve as the anode and cathode, respectively. The as-prepared stretchable fuel cell exhibits good overall performance, including high power density, current density, open-circuit voltage, stretchability, and durability. Most importantly, a wearable fuel cell is also achieved by integrating tattoo-like interdigitated electrodes with a thin layer of sponge as a fuel container, exhibiting good performance under various deformations (compression, stretching, and twisting). Such attractive performance in conjunction with skin-like in-plane design indicates its great potential to power the next-generation of wearable and implantable devices.

KW - electro-oxidation

KW - flexible

KW - fuel cells

KW - gold nanowires

KW - stretchable

UR - http://www.scopus.com/inward/record.url?scp=85075742170&partnerID=8YFLogxK

U2 - 10.1002/aenm.201903512

DO - 10.1002/aenm.201903512

M3 - Article

AN - SCOPUS:85075742170

VL - 10

JO - Advanced Energy Materials

JF - Advanced Energy Materials

SN - 1614-6832

IS - 2

M1 - 1903512

ER -