Advances in the electrochemical regeneration of aluminum hydride

  title={Advances in the electrochemical regeneration of aluminum hydride},
  author={Michael J. Mart{\'i}nez-Rodr{\'i}guez and Brenda L. Garc{\'i}a-D{\'i}az and Joseph A. Teprovich and Douglas A. Knight and Ragaiy A. Zidan},
  journal={Applied Physics A},
In previous work, a reversible cycle that uses electrolysis and catalytic hydrogenation of spent Al(s) for the regeneration of alane (AlH3) was reported. In this study, the electrochemical synthesis of alane is improved. Advances in the electrochemical regeneration of alane have been achieved via the use of lithium aluminum hydride (LiAlH4) and lithium chloride (LiCl). Lithium chloride reacts in a cyclic process and functions as an electro-catalytic additive that enhances the electrochemical… Expand
Li-Driven Electrochemical Conversion Reaction of AlH3, LiAlH4, and NaAlH4
The conversion reaction of AlH3, LiAlH4, and NaAlH4 complex hydrides with lithium has been examined electrochemically. All compounds undergo a conversion reaction in which one equivalent of LiH isExpand
Electrochemical regeneration of chromium- containing galvanic solutions
Spent galvanic solutions are highly aggressive and contain substances, suitable for reuse. Regeneration of these solutions represents both an environmental and economic issue of actual problem. TheExpand
Aluminum hydride for solid-state hydrogen storage: Structure, synthesis, thermodynamics, kinetics, and regeneration
Abstract Aluminum hydride (AlH3) is a binary metal hydride that contains more than 10.1 wt% of hydrogen and possesses a high volumetric hydrogen density of 148 kg H2 m−3. Pristine AlH3 can readilyExpand
Investigation of the Reversible Lithiation of an Oxide Free Aluminum Anode by a LiBH4 Solid State Electrolyte
In this study, we analyze and compare the physical and electrochemical properties of an all solid-state cell utilizing LiBH4 as the electrolyte and aluminum as the active anode material. The systemExpand
Metal hydrides for lithium-ion battery application: A review
Abstract The state of the art of energy storage and conversion is still unfulfilled application for lithium-ion devices, which require high energy density and superior safety. The development ofExpand
Characteristics of the Dendrite Growth in the Electrochemical Alane Production Process
The electrochemical alane production process was proposed for a feasible production of alane. The operation of process was difficult because of short circuit by a dendrite growth in the reactor.Expand
Improved reversibility and cyclic stability of NaAlH4 anode for lithium ion batteries
Abstract NaAlH 4 is a promising anode material for lithium-ion batteries due to its high theoretical capacity of 1985 mAh g −1 . However, the practical application of NaAlH 4 anode is hindered by itsExpand
Effects of Process Variables on the Growth of Dendrite in the Electrochemical Alane(AlH3) Production Process
Abstract >> Electrochemical alane (AlH 3 ) production process can be provided as a synthesis route which closea reversible cycle. In this study, growth inhibition of dendrite as key issues in thisExpand
Metastable Metal Hydrides for Hydrogen Storage
The possibility of using hydrogen as a reliable energy carrier for both stationary and mobile applications has gained renewed interest in recent years due to improvements in high temperature fuelExpand
Alanates, a Comprehensive Review
This work is a comprehensive compilation of all known alanates, and the crystallographic and X-ray diffraction characteristics of each alanate are presented along with this review. Expand


Hydrogen electrode reaction of lithium and sodium aluminum hydrides
Abstract Any chemical reagents with reducing power can be theoretically utilized as an active material for fuel cell anode. Until now the electrochemical oxidation of NaBH 4 dissolved in alkalineExpand
Electrochemical reaction of lithium alanate dissolved in diethyl ether and tetrahydrofuran
Abstract We present electrochemical properties of lithium alanate (LiAlH 4 ) dissolved in aprotic ethers – diethyl ether (Et 2 O) and tetrahydrofuran (THF) – under an Ar atmosphere of 1 atm at 298 K.Expand
Direct and Reversible Synthesis of AlH3−Triethylenediamine from Al and H2
Aluminum hydride, AlH3, is the most well-known alane. Though thermodynamically unstable under ambient conditions, it is easily prepared in a metastable state that will undergo controlled thermalExpand
Aluminium hydride: a reversible material for hydrogen storage.
Aluminium hydride has been synthesized electrochemically, providing a synthetic route which closes a reversible cycle for regeneration of the material and bypasses expensive thermodynamic costs whichExpand
Formation of Aluminum Hydride during Alkaline Dissolution of Aluminum
The role of hydrogen-containing surface species in the alkaline dissolution of aluminum was studied by secondary ion mass spectrometry SIMS and atomic force microscopy AFM. The measurements revealedExpand
Physicochemical Properties and Structure of Complex Compounds of Aluminium Hydride
CONTENTS I. Introduction 99 II. Complexes of aluminium hydride AlH3nL 99 III. Alkali metal tetrahydroaluminates MAlH4 and their complexes MAlH4nL 101 IV. Structure of the complexes AlH3nL and MAlH4nLExpand
Patent pending