Results 71 to 80 of about 26,716 (284)

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

The Far Side of Carboranes: Anticancer Active Monocations and Ambiently Stable Dications

Angewandte Chemie, EarlyView.
This work describes the synthesis of bench‐stable dicationic carboranes. Their enhanced electrophilicity is documented by opening the clusters with weak nucleophiles or dihydrogen. The surprising stability of positively charged carboranes in water enabled a study of their in vitro antiproliferative activity, which surpassed the effects of doxorubicin ...
Vlastimil Němec, Josef Holub, Maksim A. Samsonov, Zdeňka Růžičková, Josef Cvačka, Ján Vančo, Zdeněk Trávníček, Jan Belza, Zdeněk Dvořák, Jan Vrána, Aleš Růžička   +10 more
wiley   +2 more sources

Moderate Temperature Dense Phase Hydrogen Storage Materials within the US Department of Energy (DOE) H2 Storage Program: Trends toward Future Development

Crystals, 2012
Hydrogen has many positive attributes that make it a viable choice to augment the current portfolio of combustion-based fuels, especially when considering reducing pollution and greenhouse gas (GHG) emissions.
Scott McWhorter, Kathleen O’Malley, Jesse Adams, Grace Ordaz, Katie Randolph, Ned T. Stetson   +5 more
doaj   +1 more source

Synthesis, Crystal Structures and Thermal Properties of Ammine Barium Borohydrides

Inorganics, 2020
Ammine metal borohydrides show large compositional and structural diversity, and have been proposed as candidates for solid-state ammonia and hydrogen storage as well as fast cationic conductors.
Jakob B. Grinderslev, Mads B. Amdisen, Torben R. Jensen   +2 more
doaj   +1 more source

Unraveling Hydride‐Driven Multiphasic Reduction Toward Tunable Germanium Structures for Lithium‐Ion Batteries

Advanced Science, EarlyView.
The sodium hydride (NaH)‐mediated reduction of germanium dioxide yields distinct Ge structures depending on the amount of reductant, revealing the dual roles of NaH in the reduction pathways. The synthesized Ge under off‐stoichiometric conditions exhibits a porous morphology and reduced crystallinity, which effectively mitigates volume expansion during
Gijung Lee, Jieun Kang, Jin Yong Kwon, Woori Bae, Noh‐Moon Lee, Byeongho Park, Yujin Park, Changwan Sun, Jihee Yoon, Hyungmin Park, Bonjae Koo, Jin Woo Yi, Jaegeon Ryu   +12 more
wiley   +1 more source

Hyperpolarization of Molecular Deuterium

Angewandte Chemie, EarlyView.
Hyperpolarized molecular deuterium is generated and detected using a nonhydrogenative SABRE catalyst with nicotinamide. The resonance shows a strongly enhanced partially negative line, substrate‐dependent and sensitive to transient intermediates.
Theresa L. K. Hune, Anakin Aden, Julius F. Matz, Denis Moll, Ilya Kuprov, Stefan Glöggler   +5 more
wiley   +2 more sources

A review on physical and chemical hydrogen storage methods for sustainable energy applications

Unconventional Resources
A comprehensive review of physical, chemical, and geological hydrogen storage and delivery methods to support sustainable energy systems is presented a survey of compressed gas, liquid hydrogen, adsorption on porous carbon and metal organic frameworks ...
Salah Sabeeh Abed Al Kareem, Qusay Hassan, Hassan Falah Fakhruldeen, Talib Munshid Hanoon, Feryal Ibrahim Jabbar, Sameer Algburi, Doaa H. Khalaf   +6 more
doaj   +1 more source

Reductive amination with zinc powder in aqueous media

Beilstein Journal of Organic Chemistry, 2011
Zinc powder in aqueous alkaline media was employed to perform reductive amination of aldehydes with primary amines. The corresponding secondary amines were obtained in good yields along with minor amounts of hydrodimerization byproducts.
Giovanni B. Giovenzana, Daniela Imperio, Andrea Penoni, Giovanni Palmisano   +3 more
doaj   +1 more source

Differential Scanning Calorimetry (DSC) and Synchrotron X-ray Diffraction Study of Unmilled and Milled LiBH4: A Partial Release of Hydrogen at Moderate Temperatures

Crystals, 2011
A systematic investigation of phase transitions in unmilled and milled LiBH4 has been performed by Pressurized Differential Scanning Calorimetry (PDSC).
J. Huot, T. Klassen, A. Gerhauser, Y. Filinchuk, J. Lang   +4 more
doaj   +1 more source

Complex hydrides for hydrogen storage – new perspectives

Materials Today, 2014
Since the 1970s, hydrogen has been considered as a possible energy carrier for the storage of renewable energy. The main focus has been on addressing the ultimate challenge: eveloping an environmentally friendly successor for gasoline. This very ambitious goal has not yet been fully reached, as discussed in this review, but a range of new lightweight ...
Ley, Morten Brix, Jepsen, Lars Haahr, Lee, Young-Su, Cho, Young Whan, Von Colbe, J.B., Dornheim, Martin, Rokni, Masoud, jensen, Jens Oluf, Sloth, Mikael, Filinchuk, Yaroslav, Jørgensen, Jens-Erik, Besenbacher, Flemming, Jensen, Torben René   +12 more
openaire   +5 more sources