Edward H. Sargent
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View article: Unlocking liquid chemisorption in solid matrices: immobilized deep eutectic solvent-ZIF-8 composites for next-generation CO <sub>2</sub> capture
Unlocking liquid chemisorption in solid matrices: immobilized deep eutectic solvent-ZIF-8 composites for next-generation CO <sub>2</sub> capture Open
Immobilizing a CO 2 -reactive deep eutectic solvent within ZIF-8 enables chemisorption of ultra-dilute CO 2 (∼400 ppm) via carbamate, carbamic acid, and bicarbonate formation, offering a solid-state strategy for next-generation direct air …
View article: High‐Concentration Alcohol Generation in Bipolar Membrane CO Electrolyzer
High‐Concentration Alcohol Generation in Bipolar Membrane CO Electrolyzer Open
Electrochemical reduction of carbon dioxide and carbon monoxide offers an electricity‐powered route to make multicarbon liquid products. However, in conventional systems employing anion exchange membranes (AEMs), significant liquid product…
View article: High‐Concentration Alcohol Generation in Bipolar Membrane CO Electrolyzer
High‐Concentration Alcohol Generation in Bipolar Membrane CO Electrolyzer Open
Electrochemical reduction of carbon dioxide and carbon monoxide offers an electricity‐powered route to make multicarbon liquid products. However, in conventional systems employing anion exchange membranes (AEMs), significant liquid product…
View article: Ambipolar Ion Transport Membranes Enable Stable Noble‐Metal‐Free CO <sub>2</sub> Electrolysis in Neutral Media
Ambipolar Ion Transport Membranes Enable Stable Noble‐Metal‐Free CO <sub>2</sub> Electrolysis in Neutral Media Open
Carbon dioxide (CO 2 ) electrolysis traditionally relies on monopolar ion‐exchange membranes, including anion exchange membranes (AEM), cation exchange membranes (CEM), and a layered juxtaposition of two such monopolar membranes (bipolar m…
View article: Computational Discovery of New C─C Coupling Electrocatalysts for CO <sub>2</sub> Electroreduction
Computational Discovery of New C─C Coupling Electrocatalysts for CO <sub>2</sub> Electroreduction Open
Catalyst development is key in advancing low‐temperature CO 2 electroreduction systems on the path to energy‐efficient and low‐carbon intensity fuels and chemicals. Much focus lies today on transition metals and their modification, yet a p…
View article: 33 Unresolved Questions in Nanoscience and Nanotechnology
33 Unresolved Questions in Nanoscience and Nanotechnology Open
Significant advances in science and engineering often emerge at the intersections of disciplines. Nanoscience and nanotechnology are inherently interdisciplinary, uniting researchers from chemistry, physics, biology, medicine, materials sc…
View article: Nanoscale Decoupling of Carrier–Phonon Transport in Carbon Nanotube–Halide Perovskite Heterostructures
Nanoscale Decoupling of Carrier–Phonon Transport in Carbon Nanotube–Halide Perovskite Heterostructures Open
In conventional semiconductors, electrical and thermal conductivity are typically coupled, posing a challenge in optimizing both simultaneously. Overcoming this inherent trade‐off enables strategies for advancing electronic applications. H…
View article: Copper Catalysts Inherit and Retain Precatalyst Morphology in Extended CO Electroreduction to <i>n</i> ‐Propanol
Copper Catalysts Inherit and Retain Precatalyst Morphology in Extended CO Electroreduction to <i>n</i> ‐Propanol Open
Copper catalyst morphology, faceting, and oxidation state are each known to impact selectivity in the electroreduction of CO. Copper oxide precatalysts are synthesized using flash Joule heating and rapid cooling, and it is observed that te…
View article: Accelerating the Pace of Oxygen Evolution Reaction Catalyst Discovery through Megalibraries
Accelerating the Pace of Oxygen Evolution Reaction Catalyst Discovery through Megalibraries Open
Iridium (Ir) catalysts are essential for the acidic oxygen evolution reaction (OER) in proton-exchange membrane water electrolyzers (PEMWEs), but their high cost, scarcity, and geographical concentration limit large-scale adoption. In addi…
View article: Electrostatically Enhanced Buried Interface Binding of Self‐Assembled Monolayers for Efficient And Stable Inverted Perovskite Solar Cells
Electrostatically Enhanced Buried Interface Binding of Self‐Assembled Monolayers for Efficient And Stable Inverted Perovskite Solar Cells Open
Inverted p‐i‐n structure perovskite solar cells (PSCs) have outperformed traditional n‐i‐p PSCs in recent years. A key advancement is the use of self‐assembled monolayers (SAMs) as hole transport layers. One class of widely used SAMs is ca…
View article: Perovskite-perovskite-silicon triple junction solar cells with improved carrier and photon management
Perovskite-perovskite-silicon triple junction solar cells with improved carrier and photon management Open
Perovskite–silicon triple-junction photovoltaics offer efficiency gains beyond dual-junction devices, but at the expense of added complexity. Here, we address two main challenges in perovskite-silicon-based triple-junction solar cells: red…
View article: High-magnitude, spatially programmable, and sustained strain engineering of 2D semiconductors
High-magnitude, spatially programmable, and sustained strain engineering of 2D semiconductors Open
Crystalline two-dimensional (2D) semiconductors often combine high elasticity and in-plane strength, making them ideal for strain-induced tuning of electronic characteristics, akin to strategies used in silicon electronics. However, existi…
View article: Interconnected nanoconfining pore networks enhance catalyst CO2 interaction in electrified reactive capture
Interconnected nanoconfining pore networks enhance catalyst CO2 interaction in electrified reactive capture Open
Systems that sequentially capture and upgrade CO 2 from air to fuels/fuel-intermediates, such as syngas and ethylene, rely on an energy-intensive CO 2 release process. Electrified reactive capture systems transform CO 2 obtained directly f…
View article: Pb:Sn Ratio-Driven Polytypism and Band Modulation in Photoresponsive Hexagonal Perovskitoids
Pb:Sn Ratio-Driven Polytypism and Band Modulation in Photoresponsive Hexagonal Perovskitoids Open
Three-dimensional (3D) perovskites of the formula AMX3 are known for their excellent optoelectronic properties, but their design is limited by the narrow range of A-site cations that can template the 3D corner-sharing structure, and many o…
View article: Scaled CO Electroreduction to Alcohols
Scaled CO Electroreduction to Alcohols Open
Electrocatalysis offers a promising route to convert CO2 into alcohols, which is most efficient in a two-step cascade reaction with CO2-to-CO followed by CO-to-alcohol. However, current alcohol-producing CO2/CO electrolyzers suffer from lo…
View article: Nucleophilic Covalent Ligands Enable Simultaneous Surface Reconstruction and Passivation of Colloidal InSb Quantum Dots for Stable Short‐Wave Infrared Photodetectors
Nucleophilic Covalent Ligands Enable Simultaneous Surface Reconstruction and Passivation of Colloidal InSb Quantum Dots for Stable Short‐Wave Infrared Photodetectors Open
Indium antimonide (InSb) colloidal quantum dots (CQDs) are promising candidates for short‐wave infrared (SWIR) photodetectors due to their large Bohr exciton radius and tunable bandgap in the 0.6–1.3 eV range. However, the formation of met…
View article: Nucleophilic Covalent Ligands Enable Simultaneous Surface Reconstruction and Passivation of Colloidal InSb Quantum Dots for Stable Short‐Wave Infrared Photodetectors
Nucleophilic Covalent Ligands Enable Simultaneous Surface Reconstruction and Passivation of Colloidal InSb Quantum Dots for Stable Short‐Wave Infrared Photodetectors Open
Indium antimonide (InSb) colloidal quantum dots (CQDs) are promising candidates for short‐wave infrared (SWIR) photodetectors due to their large Bohr exciton radius and tunable bandgap in the 0.6–1.3 eV range. However, the formation of met…
View article: Using GNN property predictors as molecule generators
Using GNN property predictors as molecule generators Open
Graph neural networks (GNNs) have emerged as powerful tools to accurately predict materials and molecular properties in computational and automated discovery pipelines. In this article, we exploit the invertible nature of these neural netw…
View article: A redox-active polymeric network facilitates electrified reactive-capture electrosynthesis to multi-carbon products from dilute CO2-containing streams
A redox-active polymeric network facilitates electrified reactive-capture electrosynthesis to multi-carbon products from dilute CO2-containing streams Open
Reactive capture - the integration of CO2 capture with electrochemical upgrade - offers the prospect of improving overall energy efficiency in captured-CO2-to-fuels by eliminating the gas-phase CO2 desorption step, and by further offering …
View article: “Uncovering Responses”: A Sentiment Analysis Approach to Racial Violence Among Black Parents in Missouri
“Uncovering Responses”: A Sentiment Analysis Approach to Racial Violence Among Black Parents in Missouri Open
This study investigates the emotional responses of Black parents in Missouri to racial violence, revealing three distinct types of emotional responses: negative emotions (feelings that induce distress or discomfort), neutral emotions (feel…
View article: Improved Facet and Edge Passivation in Near‐Infrared III‐V Colloidal Quantum Dot Photodetectors
Improved Facet and Edge Passivation in Near‐Infrared III‐V Colloidal Quantum Dot Photodetectors Open
Lead‐free III‐V colloidal quantum dots (CQDs) are of significant interest for their potential in near‐infrared (NIR) to short‐wave infrared (SWIR) photodetection. However, achieving effective surface passivation remains challenging, especi…
View article: Combining Organic Cations of Different Sizes Grants Improved Control over Perovskitoid Dimensionality and Bandgap
Combining Organic Cations of Different Sizes Grants Improved Control over Perovskitoid Dimensionality and Bandgap Open
Because mixed-halide wide-bandgap (1.6-2.0 eV) perovskite solar cells suffer from operating instability related to light-induced halide segregation, it is of interest to study alternative means of bandgap widening. Perovskitoids combine wi…
View article: Control Over Metal‐Halide Reactivity Enables Uniform Growth of InSb Colloidal Quantum Dots for Enhanced SWIR Light Detection
Control Over Metal‐Halide Reactivity Enables Uniform Growth of InSb Colloidal Quantum Dots for Enhanced SWIR Light Detection Open
InSb colloidal quantum dots (CQDs) hold promise in short‐wave infrared sensing; however, their synthesis presents ongoing challenges, particularly in achieving precise size control – this is the result of poorly controlled reactivity among…
View article: Atomic Layer Deposition Stabilizes Nanocrystals, Enabling Reliably High‐Performance Quantum Dot LEDs
Atomic Layer Deposition Stabilizes Nanocrystals, Enabling Reliably High‐Performance Quantum Dot LEDs Open
Quantum dot light‐emitting diodes (QD‐LEDs) with stable high efficiencies are crucial for next‐generation displays. However, uncontrollable aging, where efficiency initially increases during storage (positive aging) but is entirely lost up…
View article: Electrolysis of ethylene to ethylene glycol paired with acidic CO<sub>2</sub>-to-CO conversion
Electrolysis of ethylene to ethylene glycol paired with acidic CO<sub>2</sub>-to-CO conversion Open
A paired electrolysis system converts CO 2 to CO and ethylene to ethylene glycol in acid. Using an Ru–POM mediator and gold-modified electrodes, it achieves high selectivity, stability, and improved CO 2 utilization.
View article: Hierarchically porous carbon supports enable efficient syngas production in electrified reactive capture
Hierarchically porous carbon supports enable efficient syngas production in electrified reactive capture Open
Hierarchical carbon supports, internally coated with PDA and catalyst, enhance reactant mass transport, achieve molecular dispersion of the catalyst, and tune the electronic environment of the Co center.
View article: Carbon footprint assessment of ethylene oxide production <i>via</i> CO<sub>2</sub> electrolysis
Carbon footprint assessment of ethylene oxide production <i>via</i> CO<sub>2</sub> electrolysis Open
Carbon footprint assessment reveals CO 2 -electrolysis derived ethylene oxide may have a lower carbon footprint than fossil-based ethylene oxide under optimized process and energy conditions.