Catalyst Stability Considerations for Electrochemical Energy Conversion with Non-Noble Metals: Do We Measure on What We Synthesized? [0.03%]
非贵金属电化学能源转换催化剂稳定性考量：测量的是否合成的？
Degenhart Hochfilzer,Ib Chorkendorff,Jakob Kibsgaard
Degenhart Hochfilzer
Working with non-noble electrocatalysts poses significant experimental challenges to unambiguously evaluate their intrinsic activity and characterize their working state and possible structural and compositional changes before, during, and ...
Ritums Cepitis,Nadezda Kongi,Jan Rossmeisl et al.
Ritums Cepitis et al.
Improved oxygen electrocatalysis is crucial for the ever-growing energy demand. Metal-nitrogen-carbon (M-N-C) materials are promising candidates for catalysts. Their activity is tunable via varying electronic and geometric properties, such ...
Daniele Meggiolaro,Marco Agostini,Sergio Brutti
Daniele Meggiolaro
Metal-sulfur batteries constitute an extraordinary research playground that ranges from fundamental science to applied technologies. However, besides the widely explored Li-S system, a remarkable lack of understanding hinders advancements a...
Catalytic Activity of Defect-Engineered Transition Me tal Dichalcogenides Mapped with Atomic-Scale Precision by Electrochemical Scanning Tunneling Microscopy [0.03%]
用电化学扫描隧道显微镜以原子级精度表征缺陷工程调控的过渡族金属硫属化合物的催化性能
Marco Lunardon,Tomasz Kosmala,Mahdi Ghorbani-Asl et al.
Marco Lunardon et al.
Unraveling structure-activity relationships is a key objective of catalysis. Unfortunately, the intrinsic complexity and structural heterogeneity of materials stand in the way of this goal, mainly because the activity measurements are area-...
Thermodynamic Origin of the Photostability of the Two-Dimensional Perovskite PEA2Pb(I1- x Br x )4 [0.03%]
二维准二维钙钛矿PEA2Pb(I1-xBrx)4光稳定的热力学起源
Zehua Chen,Haibo Xue,Geert Brocks et al.
Zehua Chen et al.
The two-dimensional (2D) mixed halide perovskite PEA2Pb(I1-x Br x )4 exhibits high phase stability under illumination as compared to the three-dimensional (3D) counterpart MAPb(I1-x Br x )3. We explain this difference using a thermodynamic ...
Water Increases the Faradaic Selectivity of Li-Mediated Nitrogen Reduction [0.03%]
水增加Li介导的氮还原反应的法拉第选择性
Matthew Spry,Olivia Westhead,Romain Tort et al.
Matthew Spry et al.
The lithium-mediated system catalyzes nitrogen to ammonia under ambient conditions. Herein we discover that trace amount of water as an electrolyte additive-in contrast to prior reports from the literature-can effect a dramatic improvement ...
Romain Tort,Olivia Westhead,Matthew Spry et al.
Romain Tort et al.
The performance of the Li-mediated ammonia synthesis has progressed dramatically since its recent reintroduction. However, fundamental understanding of this reaction is slower paced, due to the many uncontrolled variables influencing it. To...
Yun Liu,Jean-Philippe Banon,Kyle Frohna et al.
Yun Liu et al.
Band gap tunability of lead mixed halide perovskites makes them promising candidates for various applications in optoelectronics. Here we use the localization landscape theory to reveal that the static disorder due to iodide:bromide composi...
Siddhartha Subramanian,Kailun Yang,Mengran Li et al.
Siddhartha Subramanian et al.
The electrochemical reduction of CO2 (CO2RR) on silver catalysts has been demonstrated under elevated current density, longer reaction times, and intermittent operation. Maintaining performance requires that CO2 can access the entire geomet...
Heterogeneous Electrochemical Ammonia Oxidation with a Ru-bda Oligomer Anchored on Graphitic Electrodes via CH-π Interactions [0.03%]
通过CH-π相互作用固定在石墨电极上的Ru-bda寡聚物的异质电化学氨氧化反应
Anna M Beiler,Alisa Denisiuk,Jan Holub et al.
Anna M Beiler et al.
Molecular catalysts can promote ammonia oxidation, providing mechanistic insights into the electrochemical N2 cycle for a carbon-free fuel economy. We report the ammonia oxidation activity of carbon anodes functionalized with the oligomer {...