Results 81 to 90 of about 2,813,429 (292)

Suppressing diborane production during the hydrogen release of metal borohydrides: The example of alloyed Al(BH$_4$)$_3$

, 2016
Aluminum borohydride (Al(BH$_4$)$_3$) is an example of a promising hydrogen storage material with exceptional hydrogen densities by weight and volume and a low hydrogen desorption temperature.
Harrison, D., Thonhauser, T.
core   +1 more source

Chiral Potassium Brønsted Base‐Catalyzed Stereoselective Synthesis of 1,3‐Diols via a Tandem Allylic Isomerization/Asymmetric Aldol–Tishchenko Reaction

Advanced Synthesis &Catalysis, EarlyView.
Chiral potassium base catalysts featuring 1,1´‐bi‐2‐naphthol‐derived chiral crown ethers as ligands promote a tandem allylic isomerization/asymmetric aldol‐Tishchenko reaction of allylic alcohols and aldehydes. This method provides enantioenriched 1,3‐diols with excellent diastereoselectivity and high enantioselectivity, thereby expanding the synthetic
Hiroki Ishikawa, Masahiro Sai
wiley   +1 more source

A Comprehensive Review on Hydrogen Absorption Behaviour of Metal Alloys Prepared through Mechanical Alloying

Metals, 2020
Hydride-forming alloys are currently considered reliable and suitable hydrogen storage materials because of their relatively high volumetric densities, and reversible H2 absorption/desorption kinetics, with high storage capacity.
Thabang Ronny Somo, Thabiso Carol Maponya, Moegamat Wafeeq Davids, Mpitloane Joseph Hato, Mykhaylo Volodymyrovich Lototskyy, Kwena Desmond Modibane   +5 more
doaj   +1 more source

ZIF‐67‐Confined Pd Single‐Atom Catalysts Implanted Into Polydopamine‐Modified Bamboo Microchannels for Robust Continuous‐Flow Hydrogenation

Advanced Science, EarlyView.
The report presents a facile room‐temperature method to stabilize Pd single‐atom catalysts within ZIF‐67 crystals during their formation. Despite an ultralow Pd loading (0.0014 wt%), the catalytic microreactor, featuring atomically dispersed Pd‐N4 sites in ZIF‐67, demonstrates superior robustness and maximized Pd utilization, significantly ...
Sisi Yao, Jiawei Han, Wenjun Zhang, Dengkang Guo, Shenjie Han, Yun Lu, Jingpeng Li   +6 more
wiley   +1 more source

Direct Probing of Trap Dynamics in β‐Ga2O3 Schottky Barrier Diodes Using Single‐Voltage‐Pulse Characterization

Advanced Science, EarlyView.
A single‐pulse approach uncovers trap dynamics in β‐Ga2O3 Schottky barrier diodes. Transient current profiling reveals rapid electron capture, delayed trap filling, and clear thermal effects. Extracted trap densities, capture time constants, and activation energies indicate that this simple pulse technique enables effective evaluation of trap states ...
Thanh Huong Vo, Sunjae Kim, Ji‐Hyeon Park, Dae‐Woo Jeon, Wan Sik Hwang, Jinyoung Hwang   +5 more
wiley   +1 more source

Functional Materials Based on Metal Hydrides

Inorganics, 2018
Storage of renewable energy remains a key obstacle for the implementation of a carbon free energy system. There is an urgent need to develop a variety of energy storage systems with varying performance, covering both long-term/large-scale and high ...
Hai-Wen Li, Min Zhu, Craig Buckley, Torben R. Jensen   +3 more
doaj   +1 more source

Technical and economic aspects of hydrogen storage in metal hydrides [PDF]

The recovery of hydrogen from such metal hydrides as LiH, MgH2, TiH2, CaH2 and FeTiH compounds is studied, with the aim of evaluating the viability of the technique for the storage of hydrogen fuel.
Schmitt, R.
core   +1 more source

Room‐Temperature Alane Dehydrogenation for Visible‐Light‐Driven Photocatalytic Hydrogen Supply System

Advanced Science, EarlyView.
In situ formed Al/MOF enables viable visible‐light‐driven photocatalytic dehydrogenation of alane (AlH3) confirming practical application. Results demonstrate that Al nanoparticles prolong lifetime of photogenerated charge carriers via localized surface plasmon resonance induced hot electron injection, while AlH3 chemisorption triggers interfacial ...
Ting‐Ting Li, Li‐Cheng Liang, Rui‐Qi Chen, Chun‐Qi Zhang, Sheng‐Nan Zhang, Wen‐Wen Cheng, Xi‐Hao Chen, Ning Wang, Juan‐Ding Xiao, Qing‐Qing Yang, Fei Liang, Chao‐Feng Zhang   +11 more
wiley   +1 more source

Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides

Advanced Science, EarlyView.
1H NMR and radio‐frequency transmission measurements of lanthanum superhydrides at 165 GPa reveals a transition at 260–280 K by a strong suppression of the signal intensity, significant changes in NMR spectra, including a dramatic decrease of the relaxation rate 1/T1T, and pronounced shielding effect, which may have a superconducting nature.
Dmitrii V. Semenok, Florian Bärtl, Di Zhou, Toni Helm, Sven Luther, Joachim Wosnitza, Ivan A. Troyan, Viktor V. Struzhkin, Hannes Kühne   +8 more
wiley   +1 more source

Generalized first-principles prediction of hydrogen para-equilibrium thermodynamics in metal hydrides

npj Computational Materials
Accurate first-principles-based prediction of the pressure-composition-temperature (PCT) relationships of metal hydrides can enable predictive optimization of hydrogen capacities and pressures.
Peter Hannappel, Matthew T. Curnan, Geun Ho Gu, Mauro Palumbo, Mateusz Balcerzak, Thomas Weißgärber, Felix Heubner   +6 more
doaj   +1 more source