Enhanced Power Generation from the Interaction between Sweat and Electrodes for Human Health Monitoring,ACS Energy Letters

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Enhanced Power Generation from the Interaction between Sweat and Electrodes for Human Health Monitoring
ACS Energy Letters ( IF 19.3 ) Pub Date : 2020-11-12 , DOI: 10.1021/acsenergylett.0c01992
Heting Wu _{1,

2} , Lin Xu _{1,

3} , Yang Wang ₁ , Tongtong Zhang _{1,

2} , Hainan Zhang ₁ , Chris R. Bowen ₄ , Zhong Lin Wang _{1,

5} , Ya Yang _{1,

2,

3}

Affiliation

Power generation from human sweat has attracted great attention due to its potential application in waste energy scavenging. However, the development of methods to generate sufficient electricity from sweat to power electronic devices for health monitoring remains a major challenge. Here, we report a wearable sweat-based electricity generator (SEG), in which the power generation mechanism is based on the redox reaction between sweat and electrodes. Due to the increase in oxygen adsorption, both the output current and power of SEG with single-walled carbon nanotubes modified electrode can be remarkably enhanced by 5.6 and 14.7 times compared to SEG with a nanotube-free electrode, respectively. The SEGs have been first utilized to power a wireless heart-rate sensor for sustainably transmitting heart-rate data to a smart phone. Moreover, self-powered sensing of lactic acid has been achieved by electric signals with the current sensitivity of 11.79 mmol·L^–1·mA^–1, demonstrating applications in human health care.

中文翻译：

通过汗液和电极之间的相互作用增强发电能力，从而实现人体健康监测

人类汗液发电由于其在废物能量清除中的潜在应用而备受关注。然而，开发从汗液产生足够电力以为用于健康监测的电子设备供电的方法仍然是主要挑战。在这里，我们报告了一种可穿戴的汗液型发电机（SEG），其中的发电机制基于汗液和电极之间的氧化还原反应。由于氧吸附的增加，与无纳米管电极的SEG相比，单壁碳纳米管改性电极的SEG的输出电流和功率分别可以显着提高5.6和14.7倍。SEG已首先用于为无线心率传感器供电，以可持续地将心率数据传输到智能手机。此外，^–1 ·mA ^–1，演示了在人体保健中的应用。

更新日期：2020-12-11

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