Hydrogen production with seawater-resilient bipolar membrane electrolyzers

Marin, Daniela H.; Perryman, Joseph T.; Hubert, McKenzie A.; Lindquist, Grace; Chen, Lihaokun; Aleman, Ashton M.; Kamat, Gaurav A.; Niemann, Valerie; Stevens, Michaela Burke; Regmi, Yagya N.; Boettcher, Shannon W.; Nielander, Adam C.; Jaramillo, Thomas F.

doi:10.1016/j.joule.2023.03.005

Cited by 43 publications

(29 citation statements)

References 40 publications

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“…Seawater is an important potential feedstock due to its widespread accessibility . A particular challenge is the generation of “free chlorine” species such as Cl 2 or HClO, which pose issues of safety and corrosion on the anode . While replacing the OER or the chloride oxidation reaction with GEOR on a one-to-one molecular basis provides practical challenges of its own, we explored the technical possibility of improving the operating cell potential for H 2 evolution from seawater.…”

Section: Resultsmentioning

confidence: 99%

Modular Solar-to-Fuel Electrolysis at Low Cell Potentials Enabled by Glycerol Electrooxidation and a Bipolar Membrane Separator

Mehrabi,

Schichtl,

Conlin

et al. 2023

ACS Appl. Mater. Interfaces

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Solar fuel generation through water electrolysis or electrochemical CO2 reduction is thermodynamically limited when it is paired with oxygen evolution reaction (OER). Glycerol electrooxidation reaction (GEOR) is an alternative anodic reaction with lower anodic electrochemical potential that utilizes a renewable coproduct produced during biodiesel synthesis. We show that GEOR on an Au–Pt–Bi ternary metal electrocatalyst in a model alkaline crude glycerol solution can provide significant cell potential reductions even when paired to reduction reactions in seawater and acidic catholytes via a bipolar membrane (BPM). We showed that the combination of GEOR and a BPM separator lowers the total cell potential by 1 V at an electrolysis current of 10.0 mA cm–2 versus an anode performing anode’s OER when paired with hydrogen evolution and CO2 reduction cathodes. The observed voltage reduction was steady for periods of up to 80 h, with minimal glycerol crossover observed through the membrane. These results motivate new, high-performance cell designs for photoelectrochemical solar fuel integrated systems based on glycerol electrooxidation.

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Section: Resultsmentioning

confidence: 99%

Modular Solar-to-Fuel Electrolysis at Low Cell Potentials Enabled by Glycerol Electrooxidation and a Bipolar Membrane Separator

Mehrabi,

Schichtl,

Conlin

et al. 2023

ACS Appl. Mater. Interfaces

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“…According to their report, the designed electrolyzer could operate stably in natural seawater for more than 72 h. Moreover, using bipolar membrane-based devices is also a great method. For example, Marin et al 98 introduced a novel bipolar membrane electrolyser for seawater electrolysis to produce H 2 and O 2 . It consists of a cation-exchange layer and an anion-exchange layer, which can effectively control the ion transport and reaction environment.…”

Section: Electrolyzers Designmentioning

confidence: 99%

Recent advances of bifunctional electrocatalysts and electrolyzers for overall seawater splitting

Wang,

Geng,

Sun

et al. 2024

J. Mater. Chem. A

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“…55 Since then, several studies that integrate BPM and seawater electrolysis have been reported. 56,57…”

Section: Strategies Of Ispementioning

confidence: 99%

“…For instance, Jaramillo and co-workers have elaborately employed BMP to design an asymmetric BPM water electrolyser (BPMWE) for seawater electrolysis and achieved long-term high-current hydrogen production. 57 The BPMWE was fabricated by a catalyst layer sandwiched between an AEL-attached anode and a CEL-attached cathode, with DI water and 0.5 M NaCl solution fed anode and cathode, respectively (Fig. 6a).…”

Section: Strategies Of Ispementioning

confidence: 99%