Solar-Driven Reduction of 1 atm CO2 to Formate at 10% Energy-Conversion Efficiency by Use of a TiO2-Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst

Xinghao Zhou; Rui Liu; Ke Sun; Yikai Chen; Erik Verlage; Sonja A. Francis; Nathan S. Lewis; Cheng Xiang Xiang

doi:10.1149/07704.0031ecst

Solar-Driven Reduction of 1 atm CO₂ to Formate at 10% Energy-Conversion Efficiency by Use of a TiO₂-Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst

Xinghao Zhou, Rui Liu, Ke Sun, Yikai Chen, Erik Verlage, Sonja A. Francis, Nathan S. Lewis, Cheng Xiang Xiang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

A solar-driven CO₂-reduction (CO₂R) cell, consisting of a tandem GaAs/InGaP/TiO₂/Ni photoanode in 1.0 M KOH(aq) (pH=13.7) to facilitate the oxygen-evolution reaction (OER), a Pd/C nanoparticle-coated Ti mesh cathode in 2.8 M KHCO₃(aq) (pH=8.0) to perform the CO₂R reaction, and a bipolar membrane to allow for steady-state operation of the catholyte and anolyte at different bulk pH values, was constructed. At the operational current density of 8.5 mA cm^-2, in 2.8 M KHCO₃(aq), the cathode exhibited <100 mV overpotential and >94% Faradaic efficiency for the reduction of 1 atm of CO₂(g) to formate. The anode exhibited 320 ± 7 mV overpotential for the OER in 1.0 M KOH(aq), and the bipolar membrane exhibited ∼480 mV voltage loss with minimal product crossover as well as >90% and >95% selectivity for protons and hydroxide ions, respectively. The solar-driven CO₂R cell converted sunlight to fuels at an energy-conversion efficiency of ∼10%.

Original language	English (US)
Title of host publication	Processes at the Semiconductor Solution Interface 7
Editors	C. O'Dwyer, D. N. Buckley, A. Etcheberry, A. Hillier, R. P. Lynch, P. Vereecken, H. Wang, M. Sunkara
Publisher	Electrochemical Society Inc.
Pages	31-41
Number of pages	11
Edition	4
ISBN (Electronic)	9781607688075
DOIs	https://doi.org/10.1149/07704.0031ecst
State	Published - 2017
Externally published	Yes
Event	Processes at the Semiconductor Solution Interface 7, PSSI 2017 - 231st ECS Meeting 2017 - New Orleans, United States Duration: May 28 2017 → Jun 1 2017

Publication series

Name	ECS Transactions
Number	4
Volume	77
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	Processes at the Semiconductor Solution Interface 7, PSSI 2017 - 231st ECS Meeting 2017
Country/Territory	United States
City	New Orleans
Period	5/28/17 → 6/1/17

All Science Journal Classification (ASJC) codes

General Engineering

Access to Document

10.1149/07704.0031ecst

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Zhou, X., Liu, R., Sun, K., Chen, Y., Verlage, E., Francis, S. A., Lewis, N. S., & Xiang, C. X. (2017). Solar-Driven Reduction of 1 atm CO₂ to Formate at 10% Energy-Conversion Efficiency by Use of a TiO₂-Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst. In C. O'Dwyer, D. N. Buckley, A. Etcheberry, A. Hillier, R. P. Lynch, P. Vereecken, H. Wang, & M. Sunkara (Eds.), Processes at the Semiconductor Solution Interface 7 (4 ed., pp. 31-41). (ECS Transactions; Vol. 77, No. 4). Electrochemical Society Inc.. https://doi.org/10.1149/07704.0031ecst

Zhou, Xinghao ; Liu, Rui ; Sun, Ke et al. / Solar-Driven Reduction of 1 atm CO₂ to Formate at 10% Energy-Conversion Efficiency by Use of a TiO₂-Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst. Processes at the Semiconductor Solution Interface 7. editor / C. O'Dwyer ; D. N. Buckley ; A. Etcheberry ; A. Hillier ; R. P. Lynch ; P. Vereecken ; H. Wang ; M. Sunkara. 4. ed. Electrochemical Society Inc., 2017. pp. 31-41 (ECS Transactions; 4).

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title = "Solar-Driven Reduction of 1 atm CO2 to Formate at 10% Energy-Conversion Efficiency by Use of a TiO2-Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst",

abstract = "A solar-driven CO2-reduction (CO2R) cell, consisting of a tandem GaAs/InGaP/TiO2/Ni photoanode in 1.0 M KOH(aq) (pH=13.7) to facilitate the oxygen-evolution reaction (OER), a Pd/C nanoparticle-coated Ti mesh cathode in 2.8 M KHCO3(aq) (pH=8.0) to perform the CO2R reaction, and a bipolar membrane to allow for steady-state operation of the catholyte and anolyte at different bulk pH values, was constructed. At the operational current density of 8.5 mA cm-2, in 2.8 M KHCO3(aq), the cathode exhibited <100 mV overpotential and >94% Faradaic efficiency for the reduction of 1 atm of CO2(g) to formate. The anode exhibited 320 ± 7 mV overpotential for the OER in 1.0 M KOH(aq), and the bipolar membrane exhibited ∼480 mV voltage loss with minimal product crossover as well as >90% and >95% selectivity for protons and hydroxide ions, respectively. The solar-driven CO2R cell converted sunlight to fuels at an energy-conversion efficiency of ∼10%.",

author = "Xinghao Zhou and Rui Liu and Ke Sun and Yikai Chen and Erik Verlage and Francis, {Sonja A.} and Lewis, {Nathan S.} and Xiang, {Cheng Xiang}",

note = "Publisher Copyright: {\textcopyright} The Electrochemical Society.; Processes at the Semiconductor Solution Interface 7, PSSI 2017 - 231st ECS Meeting 2017 ; Conference date: 28-05-2017 Through 01-06-2017",

year = "2017",

doi = "10.1149/07704.0031ecst",

language = "English (US)",

series = "ECS Transactions",

publisher = "Electrochemical Society Inc.",

number = "4",

pages = "31--41",

editor = "C. O'Dwyer and Buckley, {D. N.} and A. Etcheberry and A. Hillier and Lynch, {R. P.} and P. Vereecken and H. Wang and M. Sunkara",

booktitle = "Processes at the Semiconductor Solution Interface 7",

edition = "4",

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Zhou, X, Liu, R, Sun, K, Chen, Y, Verlage, E, Francis, SA, Lewis, NS & Xiang, CX 2017, Solar-Driven Reduction of 1 atm CO₂ to Formate at 10% Energy-Conversion Efficiency by Use of a TiO₂-Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst. in C O'Dwyer, DN Buckley, A Etcheberry, A Hillier, RP Lynch, P Vereecken, H Wang & M Sunkara (eds), Processes at the Semiconductor Solution Interface 7. 4 edn, ECS Transactions, no. 4, vol. 77, Electrochemical Society Inc., pp. 31-41, Processes at the Semiconductor Solution Interface 7, PSSI 2017 - 231st ECS Meeting 2017, New Orleans, United States, 5/28/17. https://doi.org/10.1149/07704.0031ecst

Solar-Driven Reduction of 1 atm CO₂ to Formate at 10% Energy-Conversion Efficiency by Use of a TiO₂-Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst. / Zhou, Xinghao; Liu, Rui; Sun, Ke et al.
Processes at the Semiconductor Solution Interface 7. ed. / C. O'Dwyer; D. N. Buckley; A. Etcheberry; A. Hillier; R. P. Lynch; P. Vereecken; H. Wang; M. Sunkara. 4. ed. Electrochemical Society Inc., 2017. p. 31-41 (ECS Transactions; Vol. 77, No. 4).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Solar-Driven Reduction of 1 atm CO2 to Formate at 10% Energy-Conversion Efficiency by Use of a TiO2-Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst

AU - Zhou, Xinghao

AU - Liu, Rui

AU - Sun, Ke

AU - Chen, Yikai

AU - Verlage, Erik

AU - Francis, Sonja A.

AU - Lewis, Nathan S.

AU - Xiang, Cheng Xiang

N1 - Publisher Copyright: © The Electrochemical Society.

PY - 2017

Y1 - 2017

N2 - A solar-driven CO2-reduction (CO2R) cell, consisting of a tandem GaAs/InGaP/TiO2/Ni photoanode in 1.0 M KOH(aq) (pH=13.7) to facilitate the oxygen-evolution reaction (OER), a Pd/C nanoparticle-coated Ti mesh cathode in 2.8 M KHCO3(aq) (pH=8.0) to perform the CO2R reaction, and a bipolar membrane to allow for steady-state operation of the catholyte and anolyte at different bulk pH values, was constructed. At the operational current density of 8.5 mA cm-2, in 2.8 M KHCO3(aq), the cathode exhibited <100 mV overpotential and >94% Faradaic efficiency for the reduction of 1 atm of CO2(g) to formate. The anode exhibited 320 ± 7 mV overpotential for the OER in 1.0 M KOH(aq), and the bipolar membrane exhibited ∼480 mV voltage loss with minimal product crossover as well as >90% and >95% selectivity for protons and hydroxide ions, respectively. The solar-driven CO2R cell converted sunlight to fuels at an energy-conversion efficiency of ∼10%.

AB - A solar-driven CO2-reduction (CO2R) cell, consisting of a tandem GaAs/InGaP/TiO2/Ni photoanode in 1.0 M KOH(aq) (pH=13.7) to facilitate the oxygen-evolution reaction (OER), a Pd/C nanoparticle-coated Ti mesh cathode in 2.8 M KHCO3(aq) (pH=8.0) to perform the CO2R reaction, and a bipolar membrane to allow for steady-state operation of the catholyte and anolyte at different bulk pH values, was constructed. At the operational current density of 8.5 mA cm-2, in 2.8 M KHCO3(aq), the cathode exhibited <100 mV overpotential and >94% Faradaic efficiency for the reduction of 1 atm of CO2(g) to formate. The anode exhibited 320 ± 7 mV overpotential for the OER in 1.0 M KOH(aq), and the bipolar membrane exhibited ∼480 mV voltage loss with minimal product crossover as well as >90% and >95% selectivity for protons and hydroxide ions, respectively. The solar-driven CO2R cell converted sunlight to fuels at an energy-conversion efficiency of ∼10%.

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U2 - 10.1149/07704.0031ecst

DO - 10.1149/07704.0031ecst

M3 - Conference contribution

AN - SCOPUS:85021846639

T3 - ECS Transactions

SP - 31

EP - 41

BT - Processes at the Semiconductor Solution Interface 7

A2 - O'Dwyer, C.

A2 - Buckley, D. N.

A2 - Etcheberry, A.

A2 - Hillier, A.

A2 - Lynch, R. P.

A2 - Vereecken, P.

A2 - Wang, H.

A2 - Sunkara, M.

PB - Electrochemical Society Inc.

T2 - Processes at the Semiconductor Solution Interface 7, PSSI 2017 - 231st ECS Meeting 2017

Y2 - 28 May 2017 through 1 June 2017

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Zhou X, Liu R, Sun K, Chen Y, Verlage E, Francis SA et al. Solar-Driven Reduction of 1 atm CO₂ to Formate at 10% Energy-Conversion Efficiency by Use of a TiO₂-Protected III-V Tandem Photoanode in Conjunction with a Bipolar Membrane and a Pd/C Cathode Electrocatalyst. In O'Dwyer C, Buckley DN, Etcheberry A, Hillier A, Lynch RP, Vereecken P, Wang H, Sunkara M, editors, Processes at the Semiconductor Solution Interface 7. 4 ed. Electrochemical Society Inc. 2017. p. 31-41. (ECS Transactions; 4). doi: 10.1149/07704.0031ecst