Results 61 to 70 of about 23,448 (288)

Ketone Hydrogenation with Iridium Complexes with “non N–H” Ligands: The Key Role of the Strong Base [PDF]

, 2015
Ferrocenyl phosphine thioether ligands (PS), not containing deprotonatable functions, efficiently support the iridium catalyzed ketone hydrogenation in combination with a strong base co-catalyst. Use of an internal base ([Ir(OMe)(COD)]2 in place of [IrCl(
Deydier, Eric, Hayes, Joseph M., Lledós, Agustí, Malacea-Kabbara, Raluca, Manoury, Eric, Poli, Rinaldo, Ujaque, Gregori, Vincendeau, Sandrine   +7 more
core   +3 more sources

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact

Advanced Materials Technologies, EarlyView.
This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt, Katja Lange, Robert Göckeritz, Erik Grunwald, Angelika Hähnel, Alexander Müller, Volker Naumann, Sistan Rasuli, Wolfram Münchgesang, Bruno G. Pollet, Kerstin Witte‐Bodnar, Klemens Ilse   +11 more
wiley   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

The inner wind of IRC+10216 revisited: New exotic chemistry and diagnostic for dust condensation in carbon stars [PDF]

, 2012
Aims. We model the chemistry of the inner wind of the carbon star IRC+10216 and consider the effect of periodic shocks induced by the stellar pulsation on the gas to follow the non-equilibrium chemistry in the shocked gas layers.
Agúndez, Agúndez, Agúndez, Agúndez, Akhmadov, Asplund, Begemann, Bertschinger, Boersma, Bowen, Bulgakov, Cernicharo, Cernicharo, Cernicharo, Cherchneff, Cherchneff, Cherchneff, Cherchneff, Cherchneff, Cohen, Decin, Decin, Decin, Duari, Erhart, Fantoni, Fonfría, Ford, Fox, Gensheimer, Giesen, Gilman, Goebel, Grishko, Groenewegen, Guélin, Halfen, He, Hony, Hony, Hony, Hony, Husain, Hynes, I. Cherchneff, Ivezić, Justtanont, Keady, Keller, Kimura, Kimura, Krestinin, Lattimer, Lodders, Lucas, Mauron, McCabe, McCabe, Melnik, Men’shchikov, Milam, Milam, Nejad, Neufeld, Neufeld, Neufeld, Olofsson, Olofsson, Ozin, Patel, Perrin, Ridgway, Ridgway, Schöier, Schöier, Shinnaga, Speck, Speck, Szczerba, Tenenbaum, Tenenbaum, Treffers, Tsuji, Tsuji, Willacy, Willacy, Winters, Woitke, Yasuda, Zhang, Zhukovska, Ziurys, Ziurys   +92 more
core   +2 more sources

Energy‐Resolved Femtosecond Dynamics of Plasmon‐Induced Hole Injection at Au/GaN Heterointerfaces

Advanced Science, EarlyView.
We reveal the spectral signature of ultrafast nonthermal hot‐hole transfer at plasmonic heterointerfaces, which reshapes hot‐carrier relaxation dynamics and significantly enhances hydrogen evolution, providing a mechanistic basis for optimizing hot‐carrier utilization in photocatalysis.
Yuying Gao, Yuxin Xie, Jonathan Diederich, Christian Höhn, Klaus Schwarzburg, Fengtao Fan, Can Li, Roel van de Krol, Dennis Friedrich   +8 more
wiley   +1 more source

Use of a Hydrogen Metal Hydride System to Increase Glass Production Efficiency [PDF]

Journal of Mechanical Engineering, 2019
Today, the most effective means of using the energy potential of the secondary energy resources of industrial enterprises is the use of cogeneration utilization systems.
Natalia A. Chorna, Oleksandr V. Koshelnik, Olha V. Kruhliakova, Olha V. Dolobovska   +3 more
doaj   +1 more source

A Hydrogen‐Releasing Nanozyme Engineers a Mitochondrial ROS Amplifier for Self‐Sustaining Catalytic Immunotherapy

Advanced Science, EarlyView.
We developed a RhPd‐H nanozyme that integrates enhanced POD‐mimetic catalytic activity with thermally triggered H2 release. H2 shields and reprograms mitochondria to continuously leak endogenous ·O2−. This dual‐path ROS spatially and temporally disrupts redox homeostasis, inducing persistent oxidative stress for tumor suppression and antitumor immunity,
Mingfan Shi, Jingrui Cao, Tong Wu, Guang Yang, YaWen Yang, Shixin Zhang, Wenwen Su, Hongyu Chu, Yangyang Zhao, Shan Jiang, Qiong Wu, Dongxu Jiao, Fangfang Chen   +12 more
wiley   +1 more source

Lewis Acid–Water/Alcohol Complexes as Hydrogen Atom Donors in Radical Reactions

CHIMIA, 2013
Water or low molecular weight alcohols are, due to their availability, low price and low toxicity ideal reagents for organic synthesis. Recently, it was reported that, despite the very strong BDE of the O–H bond, they can be used as hydrogen ...
Guillaume Povie, Philippe Renaud
doaj   +1 more source

In Situ Formation of an In–Zn Interface Layer Enables Aqueous Zinc‐Ions Batteries with High Capacity Retention

Advanced Science, EarlyView.
This work demonstrates an indium zinc oxide (IZO)‐modified separator applied to aqueous zinc ion batteries (AZIBs), which in situ generates an In–Zn interface layer to stabilize the separator/anode region during the cycling process. The In–Zn interface layer provides richer nucleation sites for Zn2+ and suppresses side reactions.
Youwei Jiang, Jinghao Li, Jie Huang, Tan Qiu, Xiuwen Song, Fujun Deng, Yongxue Wang, Yue Ming, Ziping Wu, Qinyou An, Yaoguang Rong   +10 more
wiley   +1 more source