High Efficiency Graphene Coated Copper Based Thermocells Connected in Series

Conversion of low-grade waste heat into electricity had been studied employing single thermocell or flowcells so far. Graphene coated copper electrodes based thermocells connected in series displayed relatively high efficiency of thermal energy harvesting. The maximum power output of 49.2 W/m2 for n...

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Main Authors:	Mani Sindhuja, Emayavaramban Indubala, Venkatachalam Sudha, Seshadri Harinipriya
Format:	Article
Language:	English
Published:	Frontiers Media S.A. 2018-04-01
Series:	Frontiers in Physics
Subjects:	graphene copper thermocells efficiency inter electrode temperature
Online Access:	http://journal.frontiersin.org/article/10.3389/fphy.2018.00035/full

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spelling	doaj-149c50ec29f148b7a248b2cc249425812020-11-24T23:50:13ZengFrontiers Media S.A.Frontiers in Physics2296-424X2018-04-01610.3389/fphy.2018.00035337919High Efficiency Graphene Coated Copper Based Thermocells Connected in SeriesMani Sindhuja0Mani Sindhuja1Emayavaramban Indubala2Emayavaramban Indubala3Venkatachalam Sudha4Seshadri Harinipriya5Electrochemical Systems Lab, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, IndiaDepartment of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, IndiaElectrochemical Systems Lab, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, IndiaDepartment of Chemistry, SRM Institute of Science and Technology, Kattankulathur, IndiaDepartment of Chemistry, SRM Institute of Science and Technology, Kattankulathur, IndiaElectrochemical Systems Lab, SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, IndiaConversion of low-grade waste heat into electricity had been studied employing single thermocell or flowcells so far. Graphene coated copper electrodes based thermocells connected in series displayed relatively high efficiency of thermal energy harvesting. The maximum power output of 49.2 W/m2 for normalized cross sectional electrode area is obtained at 60°C of inter electrode temperature difference. The relative carnot efficiency of 20.2% is obtained from the device. The importance of reducing the mass transfer and ion transfer resistance to improve the efficiency of the device is demonstrated. Degradation studies confirmed mild oxidation of copper foil due to corrosion caused by the electrolyte.http://journal.frontiersin.org/article/10.3389/fphy.2018.00035/fullgraphenecopperthermocellsefficiencyinter electrode temperature
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Mani Sindhuja Mani Sindhuja Emayavaramban Indubala Emayavaramban Indubala Venkatachalam Sudha Seshadri Harinipriya
spellingShingle	Mani Sindhuja Mani Sindhuja Emayavaramban Indubala Emayavaramban Indubala Venkatachalam Sudha Seshadri Harinipriya High Efficiency Graphene Coated Copper Based Thermocells Connected in Series Frontiers in Physics graphene copper thermocells efficiency inter electrode temperature
author_facet	Mani Sindhuja Mani Sindhuja Emayavaramban Indubala Emayavaramban Indubala Venkatachalam Sudha Seshadri Harinipriya
author_sort	Mani Sindhuja
title	High Efficiency Graphene Coated Copper Based Thermocells Connected in Series
title_short	High Efficiency Graphene Coated Copper Based Thermocells Connected in Series
title_full	High Efficiency Graphene Coated Copper Based Thermocells Connected in Series
title_fullStr	High Efficiency Graphene Coated Copper Based Thermocells Connected in Series
title_full_unstemmed	High Efficiency Graphene Coated Copper Based Thermocells Connected in Series
title_sort	high efficiency graphene coated copper based thermocells connected in series
publisher	Frontiers Media S.A.
series	Frontiers in Physics
issn	2296-424X
publishDate	2018-04-01
description	Conversion of low-grade waste heat into electricity had been studied employing single thermocell or flowcells so far. Graphene coated copper electrodes based thermocells connected in series displayed relatively high efficiency of thermal energy harvesting. The maximum power output of 49.2 W/m2 for normalized cross sectional electrode area is obtained at 60°C of inter electrode temperature difference. The relative carnot efficiency of 20.2% is obtained from the device. The importance of reducing the mass transfer and ion transfer resistance to improve the efficiency of the device is demonstrated. Degradation studies confirmed mild oxidation of copper foil due to corrosion caused by the electrolyte.
topic	graphene copper thermocells efficiency inter electrode temperature
url	http://journal.frontiersin.org/article/10.3389/fphy.2018.00035/full
work_keys_str_mv	AT manisindhuja highefficiencygraphenecoatedcopperbasedthermocellsconnectedinseries AT manisindhuja highefficiencygraphenecoatedcopperbasedthermocellsconnectedinseries AT emayavarambanindubala highefficiencygraphenecoatedcopperbasedthermocellsconnectedinseries AT emayavarambanindubala highefficiencygraphenecoatedcopperbasedthermocellsconnectedinseries AT venkatachalamsudha highefficiencygraphenecoatedcopperbasedthermocellsconnectedinseries AT seshadriharinipriya highefficiencygraphenecoatedcopperbasedthermocellsconnectedinseries
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High Efficiency Graphene Coated Copper Based Thermocells Connected in Series

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