Salinity gradient power-reverse electrodialysis and alkaline polymer electrolyte water electrolysis for hydrogen production

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F16%3A43902044" target="_blank" >RIV/60461373:22310/16:43902044 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0376738816303076" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0376738816303076</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.memsci.2016.04.067" target="_blank" >10.1016/j.memsci.2016.04.067</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Salinity gradient power-reverse electrodialysis and alkaline polymer electrolyte water electrolysis for hydrogen production

Popis výsledku v původním jazyce

In this work, innovative use of Salinity Gradient Power (SGP) as renewable energy source for indirect production of hydrogen is addressed. A lab-scale reverse electrodialysis (RED) unit, fed with different NaCl solutions mimicking highly concentrated brine (5 M), Reverse Osmosis retentate (1 M), seawater (0.5 M) and brackish water (0.1 M), was coupled to an alkaline polymer electrolyte (APE) water electrolysis cell. SGP-RED unit, equipped with 27 cell-pairs, reached at best an Open Circuit Voltage (OCV) of 3.7 V and maximum gross power density of 3.2 W m(MP)(2) (membrane pair) when feeding the low concentration compartment (LCC) with 0.1 M NaCl and the High Concentration Compartment (HCC) with 5 M NaCl. The single-cell APE water electrolysis unit, operated at 1.8 V, attained a current density of 120 mA cm(-2) under the following configuration: 10% w/w KOH electrolyte, highly conductive anion selective membrane composed of inert low-density polyethylene, finely milled anion selective particles and water-soluble poly (ethylene glycol-ran-propylene glycol), non-Platinum catalysts (NiCo2O4 and NiFe2O4) loading of 10 mg cm(-2) and 15%w/w polymer binder at both cathode and anode, and operational temperature of 65 degrees C. The integrated system resulted in a maximum hydrogen production rate of 44 cm(3) h(-1) per cm(2) of electrode surface area.

Název v anglickém jazyce

Salinity gradient power-reverse electrodialysis and alkaline polymer electrolyte water electrolysis for hydrogen production

Popis výsledku anglicky

In this work, innovative use of Salinity Gradient Power (SGP) as renewable energy source for indirect production of hydrogen is addressed. A lab-scale reverse electrodialysis (RED) unit, fed with different NaCl solutions mimicking highly concentrated brine (5 M), Reverse Osmosis retentate (1 M), seawater (0.5 M) and brackish water (0.1 M), was coupled to an alkaline polymer electrolyte (APE) water electrolysis cell. SGP-RED unit, equipped with 27 cell-pairs, reached at best an Open Circuit Voltage (OCV) of 3.7 V and maximum gross power density of 3.2 W m(MP)(2) (membrane pair) when feeding the low concentration compartment (LCC) with 0.1 M NaCl and the High Concentration Compartment (HCC) with 5 M NaCl. The single-cell APE water electrolysis unit, operated at 1.8 V, attained a current density of 120 mA cm(-2) under the following configuration: 10% w/w KOH electrolyte, highly conductive anion selective membrane composed of inert low-density polyethylene, finely milled anion selective particles and water-soluble poly (ethylene glycol-ran-propylene glycol), non-Platinum catalysts (NiCo2O4 and NiFe2O4) loading of 10 mg cm(-2) and 15%w/w polymer binder at both cathode and anode, and operational temperature of 65 degrees C. The integrated system resulted in a maximum hydrogen production rate of 44 cm(3) h(-1) per cm(2) of electrode surface area.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Membrane Science

ISSN

0376-7388

e-ISSN

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Svazek periodika

514

Číslo periodika v rámci svazku

September

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

155-164

Kód UT WoS článku

000378060100016

EID výsledku v databázi Scopus

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