Gram-scale synthesis of MIL-125 nanoparticles and their solution processability

Fabrizio, Kevin; Gormley, Eoghan; Davenport, Audrey M.; Hendon, Christopher H.; Brozek, Carl K.

doi:10.1039/d3sc02257a

Chem. Sci.

2023

DOI: 10.1039/d3sc02257a

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Gram-scale synthesis of MIL-125 nanoparticles and their solution processability

Kevin Fabrizio

Eoghan Gormley

Audrey M. Davenport

et al.

Abstract: Although metal–organic framework (MOF) photocatalysts have become ubiquitous, basic aspects of their photoredox mechanisms remain elusive.

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Water-Dissociation Catalysis Near the Reversible Limit in Bipolar Membrane Electrolyzers

Boettcher,

Chen,

Sarma

et al. 2023

Preprint

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The voltage penalty encountered when driving water dissociation (WD) at a high current density represents a major obstacle in the commercialization of existing bipolar-membrane (BPM) technology for energy devices. Here we show that three materials descriptors, including the electrical conductivity, microscopic surface area, and (nominal) surface-hydroxyl coverage, effectively control the kinetics of WD in BPMs. Using these descriptors and optimal mass loading, we design new earth-abundant WD catalysts based on nanoparticle SnO2 synthesized at low temperature that exhibit exceptional performance by driving the WD reaction in a BPM electrolyzer at the remarkably low WD overvoltage (ηwd) of 100 ± 20 mV at 1.0 A cm−2. We demonstrate this new catalyst works equivalently well with hydrocarbon proton-exchange layers as it does with fluorocarbon-based Nafion, thus providing new pathways to commercializing advanced bipolar membranes for a broad array of electrolysis, fuel-cell, and electrodialysis applications.

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Water-Dissociation Catalysis Near the Reversible Limit in Bipolar Membrane Electrolyzers

Boettcher,

Chen,

Sarma

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

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Gram-scale synthesis of MIL-125 nanoparticles and their solution processability

Abstract: Although metal–organic framework (MOF) photocatalysts have become ubiquitous, basic aspects of their photoredox mechanisms remain elusive.

Cited by 1 publication

References 61 publications

Water-Dissociation Catalysis Near the Reversible Limit in Bipolar Membrane Electrolyzers

Water-Dissociation Catalysis Near the Reversible Limit in Bipolar Membrane Electrolyzers

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