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ACS Energy Letters
Scopus
ISSN 2380-8195 · American Chemical Society · 48 articles in the index
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Tafel Slope Plot as a Tool to Analyze Electrocatalytic Reactions
High Resolution Image Download MS PowerPoint Slide Kinetic and nonkinetic contributions to the Tafel slope value can be separated using a Tafel slope plot, where a constant Tafel slope region indicates kinetic meaningfulness. Here, we compare the Tafel slope values obtained from linear sweep…
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Ligand Chemistry of Inorganic Lead Halide Perovskite Nanocrystals
Lead halide perovskite nanocrystals (LHP NCs) have emerged as next-generation semiconductor materials with outstanding optical and optoelectronic properties. Because of the high surface-to-volume ratio, the optical and optoelectronic performance and the colloidal stability of LHP NCs largely depend…
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Electroreduction of CO 2 : Advances in the Continuous Production of Formic Acid and Formate
The study of the electrochemical CO2 reduction to obtain formate (HCOO–) or formic acid (HCOOH) is receiving much attention as a promising technology. Since continuous–mode operation has become necessary for practical implementation of electrochemical CO2 reduction, recent years have seen a rapid…
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Affordable Green Hydrogen from Alkaline Water Electrolysis: Key Research Needs from an Industrial Perspective
High Resolution Image Download MS PowerPoint Slide Hydrogen is poised to play a key role in the energy transition by decarbonizing hard-to-electrify sectors and enabling the storage, transport, and trade of renewable energy. Recent forecasts project a thousand-fold expansion of global water…
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Zn-Ion Transporting, In Situ Formed Robust Solid Electrolyte Interphase for Stable Zinc Metal Anodes over a Wide Temperature Range
Hydrogen evolution, corrosion, and dendrite formation in the Zn anodes limit their practical applications in aqueous Zn metal batteries. Herein, we propose an interfacial chemistry regulation strategy that uses hybrid electrolytes of water and a polar aprotic N, N -dimethylformamide to modify the…
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Perovskite/CIGS Tandem Solar Cells: From Certified 24.2% toward 30% and Beyond
High Resolution Image Download MS PowerPoint Slide We demonstrate a monolithic perovskite/CIGS tandem solar cell with a certified power conversion efficiency (PCE) of 24.2%. The tandem solar cell still exhibits photocurrent mismatch between the subcells; thus optical simulations are used to…
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Geological Hydrogen Storage: Geochemical Reactivity of Hydrogen with Sandstone Reservoirs
The geological storage of hydrogen is necessary to enable the successful transition to a hydrogen economy and achieve net-zero emissions targets. Comprehensive investigations must be undertaken for each storage site to ensure their long-term suitability and functionality. As such, the systematic…
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Zero-Gap Electrochemical CO 2 Reduction Cells: Challenges and Operational Strategies for Prevention of Salt Precipitation
reduction membrane electrode assemblies. We link these approaches to the solubility limit of potassium carbonate within the electrolyzer and describe how each strategy separately manipulates water, potassium, and carbonate concentrations to prevent (or mitigate) salt formation.
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Solar-Driven Hydrogen Production: Recent Advances, Challenges, and Future Perspectives
Solar H2 production is considered as a potentially promising way to utilize solar energy and tackle climate change stemming from the combustion of fossil fuels. Photocatalytic, photoelectrochemical, photovoltaic–electrochemical, solar thermochemical, photothermal catalytic, and photobiological…
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Hybrid Plasmonic Nanomaterials for Hydrogen Generation and Carbon Dioxide Reduction
The successful development of artificial photosynthesis requires finding new materials able to efficiently harvest sunlight and catalyze hydrogen generation and carbon dioxide reduction reactions. Plasmonic nanoparticles are promising candidates for these tasks, due to their ability to confine…
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Elementary Decomposition Mechanisms of Lithium Hexafluorophosphate in Battery Electrolytes and Interphases
High Resolution Image Download MS PowerPoint Slide Electrolyte decomposition constitutes an outstanding challenge to long-life Li-ion batteries (LIBs) as well as emergent energy storage technologies, contributing to protection via solid electrolyte interphase (SEI) formation and irreversible…
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Challenges for and Pathways toward Li-Metal-Based All-Solid-State Batteries
Solid-state batteries utilizing Li metal anodes have the potential to enable improved performance (specific energy >500 Wh/kg, energy density >1500 Wh/L), safety, recyclability, and potentially lower cost (
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Lithium Metal Batteries Enabled by Synergetic Additives in Commercial Carbonate Electrolytes
The lithium metal anode is considered as the ultimate choice for high-energy-density batteries. However, the organic-dominated solid electrolyte interphase (SEI) formed in carbonate electrolytes has a low interface energy against metallic Li as well as a high resistance, resulting in a low Li…
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Chaotropic Anion and Fast-Kinetics Cathode Enabling Low-Temperature Aqueous Zn Batteries
Operating at low temperatures is a great challenge that hinders the practical application of aqueous batteries at subzero temperatures. The frozen electrolyte and the limited capacity of the cathode at low temperatures are the main reasons. Herein, we report synthetic electrolyte/cathode design…
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Single Pass CO 2 Conversion Exceeding 85% in the Electrosynthesis of Multicarbon Products via Local CO 2 Regeneration
The carbon dioxide reduction reaction (CO 2 RR) presents the opportunity to consume CO 2 and produce desirable products. However, the alkaline conditions required for productive CO 2 RR result in the bulk of input CO 2 being lost to bicarbonate and carbonate. This loss imposes a 25% limit on the…
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An Active and Robust Air Electrode for Reversible Protonic Ceramic Electrochemical Cells
Reversible protonic ceramic electrochemical cells (R-PCECs) are a promising option for efficient and low-cost generation of electricity and hydrogen. Commercialization of R-PCECs, however, hinges on the development of highly active and robust air electrodes. Here, we report an air electrode…
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Self-Cleaning CO2 Reduction Systems: Unsteady Electrochemical Forcing Enables Stability
The electrochemical conversion of CO 2 produces valuable chemicals and fuels. However, operating at high reaction rates produces locally alkaline conditions that convert reactant CO 2 into cell-damaging carbonate salts. These salts precipitate in the porous cathode structure, block CO 2 transport…
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Opportunities and Challenges of Lithium Ion Batteries in Automotive Applications
High Resolution Image Download MS PowerPoint Slide Lithium ion batteries (LIBs) have transformed the consumer electronics (CE) sector and are beginning to power the electrification of the automotive sector. The unique requirements of the vehicle application have required design considerations…
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Is There Anything Better than Pt for HER?
High Resolution Image Download MS PowerPoint Slide The search for cheap and abundant alternatives to Pt for the hydrogen evolution reaction (HER) has led to many efforts to develop new catalysts. Although the discovery of promising catalysts is often reported, none can compete with Pt in intrinsic…
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Revealing Charge Carrier Mobility and Defect Densities in Metal Halide Perovskites via Space-Charge-Limited Current Measurements
High Resolution Image Download MS PowerPoint Slide Space-charge-limited current (SCLC) measurements have been widely used to study the charge carrier mobility and trap density in semiconductors. However, their applicability to metal halide perovskites is not straightforward, due to the mixed ionic…