TY - JOUR
T1 - Pd-conformally coated, one-end-embedded gold nanowire percolation network for intrinsically stretchable, epidermal tattoo fuel cell
AU - Lu, Yan
AU - Yong, Zijun
AU - Gong, Shu
AU - Shi, Qianqian
AU - Lin, Fenge
AU - Zhai, Qingfeng
AU - Wang, Ren
AU - Cheng, Wenlong
N1 - Funding Information:
even lost the electrocatalytic activity over 80% stretching (Fig. 2g(ii), S19). The final performance retention at 70% stretching was only 37.7%. In the following release-back half-loop, the electrocatalytic performance of EP-AuPdNW recovered upon strain release (Fig. 2g(i)). The variation tendency of current densities aligned well with the stretching forward half-loop, indicating a good performance recoverability (Fig. S18). The EIS spectra also supported the EP-AuPdNW owned lower diffusion resistance under stretching (Fig. S20).This work is financially supported by ARC Discovery project DP210101045.
Funding Information:
This work is financially supported by ARC Discovery project DP210101045 .
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/2/1
Y1 - 2023/2/1
N2 - Soft, conformal and wearable epidermal fuel cells may offer promising energy solutions to power next-generation on-skin electronics on-demand anytime anywhere. However, it is non-trivial to design intrinsically stretchable electrode in order to maintain the fuel cell performance under real-world and dynamic mechanical deformations. Here, we present a tattoo-like epidermal fuel cell based on Pd conformally-coated, one-end-embedded percolation gold nanowire (EP-AuNW/EP-AuPdNW) networks, which are in essence the combination of in-plane percolation conductivity and out-plane anisotropic conductivity. Both EP-AuNW and EP-AuPdNW are intrinsically stretchable conductors for anode and cathode in fuel cell. Compared to non-conformal counterparts, a 6-times greater power density was achieved for conformal system. Importantly, EP-NW based fuel cell can function under various mechanical deformations including stretching, compression, bending, and twisting; the power density showed negligible changes to the tensile strain up to ∼50% and could maintain its 75% performance even under 80% strain. Furthermore, a dragon-tattoo epidermal fuel cell was fabricated, demonstrating on-demand power generation with real-world ethanol sources.
AB - Soft, conformal and wearable epidermal fuel cells may offer promising energy solutions to power next-generation on-skin electronics on-demand anytime anywhere. However, it is non-trivial to design intrinsically stretchable electrode in order to maintain the fuel cell performance under real-world and dynamic mechanical deformations. Here, we present a tattoo-like epidermal fuel cell based on Pd conformally-coated, one-end-embedded percolation gold nanowire (EP-AuNW/EP-AuPdNW) networks, which are in essence the combination of in-plane percolation conductivity and out-plane anisotropic conductivity. Both EP-AuNW and EP-AuPdNW are intrinsically stretchable conductors for anode and cathode in fuel cell. Compared to non-conformal counterparts, a 6-times greater power density was achieved for conformal system. Importantly, EP-NW based fuel cell can function under various mechanical deformations including stretching, compression, bending, and twisting; the power density showed negligible changes to the tensile strain up to ∼50% and could maintain its 75% performance even under 80% strain. Furthermore, a dragon-tattoo epidermal fuel cell was fabricated, demonstrating on-demand power generation with real-world ethanol sources.
KW - Conformal coating
KW - Epidermal electronics
KW - Gold nanowire
KW - Stretchable fuel cell
KW - Wearable
UR - http://www.scopus.com/inward/record.url?scp=85142756037&partnerID=8YFLogxK
U2 - 10.1016/j.bios.2022.114924
DO - 10.1016/j.bios.2022.114924
M3 - Article
C2 - 36444799
AN - SCOPUS:85142756037
SN - 0956-5663
VL - 221
JO - Biosensors and Bioelectronics
JF - Biosensors and Bioelectronics
M1 - 114924
ER -