A fibrous hydroelectric generator derived from eco-friendly sodium alginate for low-grade energy harvesting

IF 3.1 4区工程技术 Q3 ENERGY & FUELS

Frontiers in Energy Pub Date : 2024-02-09 DOI:10.1007/s11708-024-0930-z

Feng Gong, Jiaming Song, Haotian Chen, Hao Li, Runnan Huang, Yuhang Jing, Peng Yang, Junjie Feng, Rui Xiao

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引用次数: 0

Abstract

With the development of renewable energy technologies, the recovery and utilization of low-grade energy based on hydroelectric effect have drawn much attention owing to its environmental friendliness. Herein, a novel hydroelectric generator utilizing sodium alginate-graphene oxide (SA-GO) fibers is proposed, which is ecofriendly and low-cost. These fibers with a length of 5 cm and a diameter of 0.15 mm can generate an open circuit voltage (V_oc) of approximately 0.25 V and a short circuit current (I_sc) of 4 µA. By connecting SA-GO fibers in either series or parallel, this combination can power some electronic devices. Furthermore, these fibers enable the recovery of low-grade energy from the atmosphere or around the human body. Both experimental and theoretical analysis confirm that the directional flow of protons driven by water molecules is the main mechanism for power generation of SA-GO fibers. This study not only presents a simple energy transformation method that is expected to be applied to our daily life, but also provides a novel idea for the design of humidity electricity-generation devices.

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由环保型海藻酸钠制成的纤维水力发电机，用于低品位能源采集

摘要随着可再生能源技术的发展，基于水电效应的低品位能源回收和利用因其环保性而备受关注。本文提出了一种利用海藻酸钠-氧化石墨烯（SA-GO）纤维的新型水力发电机，它既环保又低成本。这些长度为 5 厘米、直径为 0.15 毫米的纤维可产生约 0.25 伏的开路电压（Voc）和 4 微安的短路电流（Isc）。通过串联或并联 SA-GO 光纤，这种组合可为某些电子设备供电。此外，这些光纤还能从大气或人体周围回收低品位能量。实验和理论分析都证实，由水分子驱动的质子定向流动是 SA-GO 纤维发电的主要机制。这项研究不仅提出了一种简单的能量转化方法，有望应用于我们的日常生活，还为湿度发电装置的设计提供了一种新思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Frontiers in Energy Energy-Energy Engineering and Power Technology

CiteScore

5.90

自引率

6.90%

发文量

708

期刊介绍： Frontiers in Energy, an interdisciplinary and peer-reviewed international journal launched in January 2007, seeks to provide a rapid and unique platform for reporting the most advanced research on energy technology and strategic thinking in order to promote timely communication between researchers, scientists, engineers, and policy makers in the field of energy. Frontiers in Energy aims to be a leading peer-reviewed platform and an authoritative source of information for analyses, reviews and evaluations in energy engineering and research, with a strong focus on energy analysis, energy modelling and prediction, integrated energy systems, energy conversion and conservation, energy planning and energy on economic and policy issues. Frontiers in Energy publishes state-of-the-art review articles, original research papers and short communications by individual researchers or research groups. It is strictly peer-reviewed and accepts only original submissions in English. The scope of the journal is broad and covers all latest focus in current energy research. High-quality papers are solicited in, but are not limited to the following areas: -Fundamental energy science -Energy technology, including energy generation, conversion, storage, renewables, transport, urban design and building efficiency -Energy and the environment, including pollution control, energy efficiency and climate change -Energy economics, strategy and policy -Emerging energy issue