Demonstration of Photoreactor Platform for On-Sun Unassisted Photoelectrochemical Hydrogen Generation with Tandem III-V Photoelectrodes

Micha Ben-Naim; Chase Aldridge; Myles Steiner; Adam Nielander; Todd Deutsch; James Young; Thomas Jaramillo

doi:10.1016/j.checat.2021.12.013

Demonstration of Photoreactor Platform for On-Sun Unassisted Photoelectrochemical Hydrogen Generation with Tandem III-V Photoelectrodes

Micha Ben-Naim, Chase Aldridge, Myles Steiner, Adam Nielander, Todd Deutsch, James Young, Thomas Jaramillo

Chemistry and Nanoscience

Research output: Contribution to journal › Article › peer-review

13 Scopus Citations

Abstract

Photoelectrochemical (PEC) water splitting is a direct solar-driven technology that converts solar energy to storable chemical energy in the form of hydrogen. In addition to semiconductor and catalyst development for improved photoelectrodes, designing reactors for testing and operation of PEC systems under inherently dynamic outdoor solar illumination is necessary to further the commercial viability of PEC technology. Herein, we present a versatile photoreactor system mounted on a solar tracker for outdoor PEC testing and demonstrate unassisted PEC water splitting under real world on-sun conditions. GaInP₂/GaAs tandem absorber photoelectrodes with a MoS₂ catalyst were fabricated and exhibit >8% solar-to-hydrogen efficiency. On-sun efficiency and stability of the photoelectrodes were characterized on both sunny and partly cloudy days with continuous monitoring of insolation and weather conditions. The versatile photoreactor and outdoor PEC testing capabilities and methods presented here can accelerate the development of other solar fuel generating systems and technologies.

Original language	American English
Pages (from-to)	195-209
Number of pages	15
Journal	Chem Catalysis
Volume	2
Issue number	1
DOIs	https://doi.org/10.1016/j.checat.2021.12.013 https://doi.org/10.1016/j.checat.2021.12.013
State	Published - 20 Jan 2022

Bibliographical note

Publisher Copyright:
© 2021

NREL Publication Number

NREL/JA-5900-79643

Keywords

hydrogen
on-sun
outdoor testing
photoelectrochemistry
photoreactor
reactor design
SDG7: Affordable and clean energy
solar fuels
water splitting

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Demonstration of Photoreactor Platform for On-Sun Unassisted Photoelectrochemical Hydrogen Generation with Tandem III-V Photoelectrodes",

abstract = "Photoelectrochemical (PEC) water splitting is a direct solar-driven technology that converts solar energy to storable chemical energy in the form of hydrogen. In addition to semiconductor and catalyst development for improved photoelectrodes, designing reactors for testing and operation of PEC systems under inherently dynamic outdoor solar illumination is necessary to further the commercial viability of PEC technology. Herein, we present a versatile photoreactor system mounted on a solar tracker for outdoor PEC testing and demonstrate unassisted PEC water splitting under real world on-sun conditions. GaInP2/GaAs tandem absorber photoelectrodes with a MoS2 catalyst were fabricated and exhibit >8% solar-to-hydrogen efficiency. On-sun efficiency and stability of the photoelectrodes were characterized on both sunny and partly cloudy days with continuous monitoring of insolation and weather conditions. The versatile photoreactor and outdoor PEC testing capabilities and methods presented here can accelerate the development of other solar fuel generating systems and technologies.",

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AU - Ben-Naim, Micha

AU - Aldridge, Chase

AU - Steiner, Myles

AU - Nielander, Adam

AU - Deutsch, Todd

AU - Young, James

AU - Jaramillo, Thomas

PY - 2022/1/20

Y1 - 2022/1/20

N2 - Photoelectrochemical (PEC) water splitting is a direct solar-driven technology that converts solar energy to storable chemical energy in the form of hydrogen. In addition to semiconductor and catalyst development for improved photoelectrodes, designing reactors for testing and operation of PEC systems under inherently dynamic outdoor solar illumination is necessary to further the commercial viability of PEC technology. Herein, we present a versatile photoreactor system mounted on a solar tracker for outdoor PEC testing and demonstrate unassisted PEC water splitting under real world on-sun conditions. GaInP2/GaAs tandem absorber photoelectrodes with a MoS2 catalyst were fabricated and exhibit >8% solar-to-hydrogen efficiency. On-sun efficiency and stability of the photoelectrodes were characterized on both sunny and partly cloudy days with continuous monitoring of insolation and weather conditions. The versatile photoreactor and outdoor PEC testing capabilities and methods presented here can accelerate the development of other solar fuel generating systems and technologies.

AB - Photoelectrochemical (PEC) water splitting is a direct solar-driven technology that converts solar energy to storable chemical energy in the form of hydrogen. In addition to semiconductor and catalyst development for improved photoelectrodes, designing reactors for testing and operation of PEC systems under inherently dynamic outdoor solar illumination is necessary to further the commercial viability of PEC technology. Herein, we present a versatile photoreactor system mounted on a solar tracker for outdoor PEC testing and demonstrate unassisted PEC water splitting under real world on-sun conditions. GaInP2/GaAs tandem absorber photoelectrodes with a MoS2 catalyst were fabricated and exhibit >8% solar-to-hydrogen efficiency. On-sun efficiency and stability of the photoelectrodes were characterized on both sunny and partly cloudy days with continuous monitoring of insolation and weather conditions. The versatile photoreactor and outdoor PEC testing capabilities and methods presented here can accelerate the development of other solar fuel generating systems and technologies.

KW - hydrogen

KW - on-sun

KW - outdoor testing

KW - photoelectrochemistry

KW - photoreactor

KW - reactor design

KW - SDG7: Affordable and clean energy

KW - solar fuels

KW - water splitting

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JO - Chem Catalysis

JF - Chem Catalysis

IS - 1

ER -

Demonstration of Photoreactor Platform for On-Sun Unassisted Photoelectrochemical Hydrogen Generation with Tandem III-V Photoelectrodes

Abstract

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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