Latest Articles of ACS Energy Letters


Production of High-Value-Added Chemicals on Oxide Semiconductor Photoanodes under Visible Light for Solar Chemical-Conversion Processes 10.1021/acsenergylett.8b00318 2018-04-11 This study reviews recent progress on the oxidative production of various high-value-added chemicals using simple and inexpensive oxide semiconductor photoanodes for technology associated with solar-to-chemical conversion processes. The photoelectrochemical p...
Improving the Performance of Inverted Formamidinium Tin Iodide Perovskite Solar Cells by Reducing the Energy-Level Mismatch 10.1021/acsenergylett.8b00383 2018-04-11 A new hole-transport layer, poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate (PEDOT:PSS) with intercalated polyethylene glycol (PEG), was introduced into Pb-free inverted Formamidinium Tin Triiodide (FASnI3) perovskite solar cells to reduce the energy-...
Efficient and Stable Silicon Microwire Photocathodes with a Nickel Silicide Interlayer for Operation in Strongly Alkaline Solutions 10.1021/acsenergylett.8b00267 2018-04-11 Most photoanodes commonly applied in solar fuel research (e.g., of Fe2O3, BiVO4, TiO2, or WO3) are only active and stable in alkaline electrolytes. Silicon (Si)-based photocathodes on the other hand are mainly studied under acidic conditions due to their inst...
Electrochemically Activated Iridium Oxide Black as Promising Electrocatalyst Having High Activity and Stability for Oxygen Evolution Reaction 10.1021/acsenergylett.8b00368 2018-04-09 Iridium is widely recognized to be the best electrocatalyst in terms of a balanced activity and stability for the oxygen evolution reaction (OER) of water splitting in acidic media, while the activity is still insufficient for the PEM electrolysis technology ...
Molecular Photoelectrocatalysts for Light-Driven Hydrogen Production 10.1021/acsenergylett.8b00255 2018-04-06 The light-driven synthesis of fuels requires efficient coupling of photon absorption with bond-forming chemical reactions. Molecular photoelectrocatalysis is an emerging approach in solar fuel production based on single molecules that support electrochemical ...
Phosphorus: An Anode of Choice for Sodium ion Batteries 10.1021/acsenergylett.8b00312 2018-04-06 Phosphorus (P) offers a high theoretical capacity of 2596 mAh g−1, and thus has been intensively pursued as one of the most promising anodes for sodium-ion batteries. However, sodium storage in P anodes is facing significant technical challenges in terms of p...
Blade-Coated Hybrid Perovskite Solar Cells with Efficiency > 17%: An In Situ Investigation 10.1021/acsenergylett.8b00428 2018-04-06 Blade-coating has recently emerged as a scalable fabrication method for hybrid perovskite solar cells, but it currently underperforms spin-coating, yielding a power conversion efficiency (PCE) of ∼15% for CH3NH3PbI3 (MAPbI3). We investigate the solidification...
Pyridinic-N-dominated Doped Defective Graphene as Superior Oxygen Electrocatalyst for Ultrahigh-Energy-Density Zn-Air Batteries 10.1021/acsenergylett.8b00303 2018-04-05 Identification of catalytic sites for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in carbon materials and design of efficient metal-free bifunctional electrocatalysts remain a great challenge. Here, we construct a novel pyridinic-N-dom...
Computational Comparison of Late Transition Metal (100) Surfaces for the Electrocatalytic Reduction of CO to C2 Species 10.1021/acsenergylett.8b00326 2018-04-05 This Letter compares the efficiency of the conversion of CO to C2 species (ethanol and ethylene) on nine late transition metal (100) surfaces (Co, Ni, Cu, Rh, Pd, Ag, Ir, Pt, Au) by means of reaction onset potentials calculated using density functional theory...
Extended Absorption Window and Improved Stability of Cesium-Based Triple-Cation Perovskite Solar Cells Passivated with Perfluorinated Organics 10.1021/acsenergylett.8b00328 2018-04-05 Despite the high-quality films achieved with triple-cation perovskites, the deviation from an optimized band gap by virtue of Shockley–Queisser estimation signifies consequential light absorption losses in this system. Herein, it is shown that, by passivating...

Production of High-Value-Added Chemicals on Oxide Semiconductor Photoanodes under Visible Light for Solar Chemical-Conversion Processes

10.1021/acsenergylett.8b00318

2018-04-11

This study reviews recent progress on the oxidative production of various high-value-added chemicals using simple and inexpensive oxide semiconductor photoanodes for technology associated with solar-to-chemical conversion processes. The photoelectrochemical p...

Improving the Performance of Inverted Formamidinium Tin Iodide Perovskite Solar Cells by Reducing the Energy-Level Mismatch

10.1021/acsenergylett.8b00383

2018-04-11

A new hole-transport layer, poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate (PEDOT:PSS) with intercalated polyethylene glycol (PEG), was introduced into Pb-free inverted Formamidinium Tin Triiodide (FASnI3) perovskite solar cells to reduce the energy-...

Efficient and Stable Silicon Microwire Photocathodes with a Nickel Silicide Interlayer for Operation in Strongly Alkaline Solutions

10.1021/acsenergylett.8b00267

2018-04-11

Most photoanodes commonly applied in solar fuel research (e.g., of Fe2O3, BiVO4, TiO2, or WO3) are only active and stable in alkaline electrolytes. Silicon (Si)-based photocathodes on the other hand are mainly studied under acidic conditions due to their inst...

Electrochemically Activated Iridium Oxide Black as Promising Electrocatalyst Having High Activity and Stability for Oxygen Evolution Reaction

10.1021/acsenergylett.8b00368

2018-04-09

Iridium is widely recognized to be the best electrocatalyst in terms of a balanced activity and stability for the oxygen evolution reaction (OER) of water splitting in acidic media, while the activity is still insufficient for the PEM electrolysis technology ...

Molecular Photoelectrocatalysts for Light-Driven Hydrogen Production

10.1021/acsenergylett.8b00255

2018-04-06

The light-driven synthesis of fuels requires efficient coupling of photon absorption with bond-forming chemical reactions. Molecular photoelectrocatalysis is an emerging approach in solar fuel production based on single molecules that support electrochemical ...

Phosphorus: An Anode of Choice for Sodium ion Batteries

10.1021/acsenergylett.8b00312

2018-04-06

Phosphorus (P) offers a high theoretical capacity of 2596 mAh g−1, and thus has been intensively pursued as one of the most promising anodes for sodium-ion batteries. However, sodium storage in P anodes is facing significant technical challenges in terms of p...

Blade-Coated Hybrid Perovskite Solar Cells with Efficiency > 17%: An In Situ Investigation

10.1021/acsenergylett.8b00428

2018-04-06

Blade-coating has recently emerged as a scalable fabrication method for hybrid perovskite solar cells, but it currently underperforms spin-coating, yielding a power conversion efficiency (PCE) of ∼15% for CH3NH3PbI3 (MAPbI3). We investigate the solidification...

Pyridinic-N-dominated Doped Defective Graphene as Superior Oxygen Electrocatalyst for Ultrahigh-Energy-Density Zn-Air Batteries

10.1021/acsenergylett.8b00303

2018-04-05

Identification of catalytic sites for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in carbon materials and design of efficient metal-free bifunctional electrocatalysts remain a great challenge. Here, we construct a novel pyridinic-N-dom...

Computational Comparison of Late Transition Metal (100) Surfaces for the Electrocatalytic Reduction of CO to C2 Species

10.1021/acsenergylett.8b00326

2018-04-05

This Letter compares the efficiency of the conversion of CO to C2 species (ethanol and ethylene) on nine late transition metal (100) surfaces (Co, Ni, Cu, Rh, Pd, Ag, Ir, Pt, Au) by means of reaction onset potentials calculated using density functional theory...

Extended Absorption Window and Improved Stability of Cesium-Based Triple-Cation Perovskite Solar Cells Passivated with Perfluorinated Organics

10.1021/acsenergylett.8b00328

2018-04-05

Despite the high-quality films achieved with triple-cation perovskites, the deviation from an optimized band gap by virtue of Shockley–Queisser estimation signifies consequential light absorption losses in this system. Herein, it is shown that, by passivating...