Results 51 to 60 of about 21,289 (213)

Fullerene C70‐Encapsulated Tetrathiafulvalene‐Co Porphyrin Covalent Organic Framework: Driving Multistep Charge Transfer to Boost CO2 Photoreduction

Advanced Science, EarlyView.
The encapsulation of C70 into COF has improved the efficiency of photocatalytic CO2 reduction significantly. The introduction of C70 drives multistep charge transfer and forms a long‐lived charge‐separated state. It also thermodynamically lowers the energy barrier of the rate‐determining step.
Ying Jiang, Chong Wang, Tianyang Dong, Yupeng Song, Tao Wang, Haibing Che, Hua Sheng, Bo Wu, Chunru Wang   +8 more
wiley   +1 more source

Iron Single Atom Catalysts for Electrochemical Ammonia Synthesis: Toward Carbon Free Hydrogen Storage

Advanced Energy Materials, EarlyView.
This review explores using iron‐based single‐atom catalysts for sustainable electrochemical conversion of nitrogen and nitrate to ammonia production. The synthesis, characterization, efficiency, advancements, and future directions of Fe‐based single‐atom catalysts are discussed in detail.
Radhika Nittoor‐Veedu, Xiaohui Ju, Martin Pumera   +2 more
wiley   +1 more source

Confining Surface Oxygen Redox in Double Perovskites for Enhanced Oxygen Evolution Reaction Activity and Stability

Advanced Energy Materials, EarlyView.
The double perovskite BaSrNiWO6 is developed as an oxygen evolution reaction catalyst. B‐site W6+ dissolution drives in situ reconstruction of the surface to a disordered, NiO‐like layer. Consequently, local oxygen species are activated for a surface lattice oxygen evolution mechanism (sLOEM).
Natasha Hales, Jinzhen Huang, Benjamin Heckscher Sjølin, Alvaro Garcia‐Padilla, Camelia Nicoleta Borca, Thomas Huthwelker, Ivano E. Castelli, Radim Skoupy, Adam H. Clark, Michal Andrzejewski, Nicola Casati, Thomas J. Schmidt, Emiliana Fabbri   +12 more
wiley   +1 more source

Strong inverse kinetic isotope effect observed in ammonia charge exchange reactions. [PDF]

Nat Commun, 2020
Petralia LS, Tsikritea A, Loreau J, Softley TP, Heazlewood BR.   +4 more
europepmc   +1 more source

Toward Complete CO2 Electroconversion: Status, Challenges, and Perspectives

Advanced Energy Materials, EarlyView.
Electrocatalytic CO2 reduction and CO2 batteries face challenges in achieving complete CO2 conversion with high conversion rates and Faradaic efficiency simultaneously. Existing systems compromise one for the other with incomplete CO2 conversion and inefficiencies, hindering practical applications. This perspective highlights state‐of‐the‐art progress,
Changfan Xu, Ping Hong, Yulian Dong, Marc Robert, Guosheng Shao, Yong Lei   +5 more
wiley   +1 more source

13C‐Labeled Mesoporous N‐Doped Carbon Nanospheres and N‐Doped Hydrothermal Carbon Aerogels as Model Materials for Carbon Corrosion Determination in Electrode Structures

Advanced Energy Materials, EarlyView.
By 13C labeling of carbon support materials used in energy storage and conversion applications, carbon corrosion can be investigated in situ via EC‐MS, giving information about the corrosion rate and whether the carbon support or other carbon‐containing materials in the system are degraded.
Niklas Ortlieb, Julian Martin, Lars Guggolz, Jari Ihonen, Anna Fischer   +4 more
wiley   +1 more source

Manipulation of Chemistry and Biology with Visible Light Using Tetra‐ortho‐Substituted Azobenzenes and Azonium Ions

Angewandte Chemie, EarlyView.
Tetra‐ortho‐Azobenzenes (TOABs) in broad daylight: in recent years, TOAB photoswitches became indispensable tools for all‐visible‐light manipulation of chemistry, biology and materials. This review explores their unique photochemical properties, design and synthetic approaches, offering support in choosing a TOAB for a given application.
Francesca Cardano, Rosa Márquez García, Wiktor Szymanski   +2 more
wiley   +2 more sources

Phase Transition in Halide Double Perovskites for Solar‐To‐Chemical Energy Conversion

Advanced Energy Materials, EarlyView.
Disorder‐to‐order phase transition in double perovskite Cs2AgBiBr6 eliminates self‐trapped excitons and antisite defects and promotes charge separation, with over sixfold photoactivity enhancement in photocatalytic C−H bond activation. Abstract Halide double perovskites have recently garnered significant interest in solar energy conversion applications
Chunhua Wang, Zhirun Xie, Pengshan Xie, Huiqiang Liang, Yang Ding, Yannan Wang, Michael K.H. Leung, Guosong Zeng, Johnny C. Ho, Sateesh Bandaru, Ning Han, Bao‐Lian Su, Yun Hau Ng   +12 more
wiley   +1 more source

Guideline for Analysis and Prevention of Contamination Catalysis

Angewandte Chemie, EarlyView.
Ongoing efforts to discover new catalysts in coupling reactions have provided an effective toolkit for chemists over the last decades. However, metal impurities often lead to costly misinterpretations and reproducibility issues. Our guideline provides a practical roadmap for identifying true catalysts, eliminating impurity‐driven errors, and ensuring ...
János Daru, Zsombor Gonda, Zoltán May, Zoltán Novák, Gergely L. Tolnai   +4 more
wiley   +2 more sources

Stability of Organic Photovoltaics: From Root Causes to Advanced Analytical Techniques

Advanced Energy Materials, EarlyView.
This review explains the causes and mechanisms of degradation in organic photovoltaics (OPVs). It explores how various factors, including heat, light, oxygen, and inherent material properties, influence OPV stability. The study categorizes degradation pathways and analyzes their impact on device performance, providing insights into the fundamental ...
Yelim Choi, Dohyun Kim, Seung Un Ryu, Hangyeol Kim, Sungryong Kim, Minjun Kim, Taiho Park   +6 more
wiley   +1 more source