James L. Young
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View article: Photoreactive Capture and Conversion of Dilute Carbon Dioxide into Synthetic Natural Gas
Photoreactive Capture and Conversion of Dilute Carbon Dioxide into Synthetic Natural Gas Open
This study introduces a photoreactive system that integrates the capture of dilute CO2 streams with their catalytic conversion to synthetic natural gas (CH4), utilizing a Ru nanoparticle (NP)-doped TiO2 composite loaded with linear polyeth…
View article: A harmonized protocol to assess the single-cell performance of proton exchange membrane water electrolyzers
A harmonized protocol to assess the single-cell performance of proton exchange membrane water electrolyzers Open
The harmonization of testing protocols for proton exchange membrane (PEM) electrolyzers is essential for ensuring accurate and reliable performance assessments and accelerating the development of hydrogen production technologies. This prot…
View article: Conformal electrochemical deposition of intermetallic AuCu thin films for convergent C–N coupling
Conformal electrochemical deposition of intermetallic AuCu thin films for convergent C–N coupling Open
A compositionally tunable series of AuCu films is active for electrocatalytic urea generation from carbon dioxide and nitrate.
View article: Nitrogen Reduction Testing with Real-Time <sup>15</sup>NH<sub>3</sub> Yield Quantification Using Orbital Multiturn Time-of-Flight Mass Spectrometry
Nitrogen Reduction Testing with Real-Time <sup>15</sup>NH<sub>3</sub> Yield Quantification Using Orbital Multiturn Time-of-Flight Mass Spectrometry Open
Yield validation of dinitrogen reduction reaction (N2RR) catalysts with 15N isotope labeling experiments is frustrated by the high cost of 15N2 and the frequent occurrence of 15NH3 and 15NO x impurities in commercial 15N2 sources. Also, ga…
View article: Electrochemical Reactivity of Hydrogen Storage Materials: Exploring Borohydride and Hydrazinium Salt Mixtures
Electrochemical Reactivity of Hydrogen Storage Materials: Exploring Borohydride and Hydrazinium Salt Mixtures Open
Electrochemical characterization of hydrogen storage materials was conducted in a non-aqueous environment to investigate the direct electrochemical release and consumption of hydrogen and the potential for regeneration. We first address th…
View article: Perovskite/Perovskite Tandem Photoelectrodes for Low-Cost UnassistedPhotoelectrochemical Water Splitting
Perovskite/Perovskite Tandem Photoelectrodes for Low-Cost UnassistedPhotoelectrochemical Water Splitting Open
In this project, we aim to address the challenges of achieving efficient and cost-effective unassisted photoelectrochemical water splitting using perovskite/perovskite tandem photoelectrodes. We utilized the following unique approaches to …
View article: Understanding the Effects of Anode Catalyst Conductivity and Loading on Catalyst Layer Utilization and Performance for Anion Exchange Membrane Water Electrolysis
Understanding the Effects of Anode Catalyst Conductivity and Loading on Catalyst Layer Utilization and Performance for Anion Exchange Membrane Water Electrolysis Open
Anion exchange membrane water electrolysis (AEMWE) is a promising technology to produce hydrogen from low-cost, renewable power sources. Recently, the efficiency and durability of AEMWE have improved significantly due to advances in the an…
View article: TiO<sub>2</sub>/TiN Interface Enables Integration of Ni<sub>5</sub>P<sub>4</sub> Electrocatalyst with a III–V Tandem Photoabsorber for Stable Unassisted Solar-Driven Water Splitting
TiO<sub>2</sub>/TiN Interface Enables Integration of Ni<sub>5</sub>P<sub>4</sub> Electrocatalyst with a III–V Tandem Photoabsorber for Stable Unassisted Solar-Driven Water Splitting Open
H2 production by direct photoelectrochemical (PEC) water splitting has remained unachievable commercially, mainly due to rapid failure at the interface between the photoabsorber(s) and catalyst(s). PEC devices made from multijunction III-V…
View article: Membranes Matter: Preventing Ammonia Crossover during Electrochemical Ammonia Synthesis
Membranes Matter: Preventing Ammonia Crossover during Electrochemical Ammonia Synthesis Open
The electrochemical nitrogen and nitrate reduction reactions (E-NRR and E-NO3RR) promise to provide decentralized and fossil-fuel-free ammonia synthesis, and as a result, E-NRR and E-NO3RR research has surged in recent years. Membrane NH3/…
View article: Thin film TiO2/TiN bifunctional interface enables integration of Ni5P4 electro-catalyst with GaInP2/GaAs III-V tandem photoabsorber for stable solar-driven water splitting
Thin film TiO2/TiN bifunctional interface enables integration of Ni5P4 electro-catalyst with GaInP2/GaAs III-V tandem photoabsorber for stable solar-driven water splitting Open
Hydrogen production by photoelectrochemical (PEC) water splitting has remained challenging for commercialization mainly due to the limited durability of integrated photoelectrodes owing to failure of the interfacial connection between the …
View article: All-Perovskite Tandem Photoelectrodes for Unassisted Solar Hydrogen Production
All-Perovskite Tandem Photoelectrodes for Unassisted Solar Hydrogen Production Open
Unassisted solar water splitting by multi-junction tandem photoelectrodes is a sustainable approach to generating green hydrogen fuels. Here, we report on the fabrication of monolithically integrated all-perovskite tandem photocathodes for…
View article: Interfacial Connections between Organic Perovskite/n <sup>+</sup> Silicon/Catalyst that Allow Integration of Solar Cell and Catalyst for Hydrogen Evolution from Water
Interfacial Connections between Organic Perovskite/n <sup>+</sup> Silicon/Catalyst that Allow Integration of Solar Cell and Catalyst for Hydrogen Evolution from Water Open
The rapidly increasing solar conversion efficiency (PCE) of hybrid organic–inorganic perovskite (HOIP) thin‐film semiconductors has triggered interest in their use for direct solar‐driven water splitting to produce hydrogen. However, appli…
View article: Passivating window and capping layer for photoelectrochemical cells
Passivating window and capping layer for photoelectrochemical cells Open
An aspect of the present disclosure is a photoelectrochemical device that includes a first cell that includes a first semiconductor alloy, a capping layer that includes a second semiconductor alloy, and a passivating layer that includes a …
View article: Devices and methods for photoelectrochemical water splitting
Devices and methods for photoelectrochemical water splitting Open
The present disclosure relates to photoelectrochemical devices and systems for capturing the energy of electromagnetic radiation and utilizing the captured energy for electrolysis to produce hydrogen gas and oxygen gas.
View article: Best Practices in PEC Water Splitting: How to Reliably Measure Solar-to-Hydrogen Efficiency of Photoelectrodes
Best Practices in PEC Water Splitting: How to Reliably Measure Solar-to-Hydrogen Efficiency of Photoelectrodes Open
Photoelectrochemical (PEC) water splitting, which utilizes sunlight and water to produce hydrogen fuel, is potentially one of the most sustainable routes to clean energy. One challenge to success is that, to date, similar materials and dev…
View article: Measurement of Resistance, Porosity, and Water Contact Angle of Porous Transport Layers for Low-Temperature Electrolysis Technologies
Measurement of Resistance, Porosity, and Water Contact Angle of Porous Transport Layers for Low-Temperature Electrolysis Technologies Open
The porous transport layer is an important component of low-temperature electrolysis devices, such as proton exchange membrane water electrolyzers or anion exchange membrane water electrolyzers. PTLs have significant influence on the cell …
View article: Engineering Surface Architectures for Improved Durability in III–V Photocathodes
Engineering Surface Architectures for Improved Durability in III–V Photocathodes Open
GaInP2 has shown promise as the wide bandgap top junction in tandem absorber photoelectrochemical (PEC) water splitting devices. Among previously reported dual-junction PEC devices with a GaInP2 top cell, those with the highest performance…
View article: Correction: Optimizing accuracy and efficacy in data-driven materials discovery for the solar production of hydrogen
Correction: Optimizing accuracy and efficacy in data-driven materials discovery for the solar production of hydrogen Open
Correction for ‘Optimizing accuracy and efficacy in data-driven materials discovery for the solar production of hydrogen’ by Yihuang Xiong et al. , Energy Environ. Sci. , 2021, 14 , 2335–2348; DOI: 10.1039/D0EE02984J.
View article: Understanding the Stability of Etched or Platinized p-GaInP Photocathodes for Solar-Driven H<sub>2</sub> Evolution
Understanding the Stability of Etched or Platinized p-GaInP Photocathodes for Solar-Driven H<sub>2</sub> Evolution Open
The long-term stability in acidic or alkaline aqueous electrolytes of p-Ga0.52In0.48P photocathodes, with a band gap of ∼1.8 eV, for the solar-driven hydrogen-evolution reaction (HER) has been evaluated from a thermodynamic, kinetic, and m…
View article: NREL's HydroGEN Photoreactor Platform Design and Characterization
NREL's HydroGEN Photoreactor Platform Design and Characterization Open
This technical report details the design, fabrication, and construction of a flow-through photoreactor developed at The National Renewable Energy Laboratory (NREL). The photoreactor is designed to facilitate indoor or outdoor testing on ph…