Effect of Chloride on Anodic Dissolution of Aluminum in 4 M NaOH Solution for Aluminum-Air Battery

Lee, Hyeokjae; Park, In‐Jun; Choi, Seok-Ryul; Kim, Jung-Gu

doi:10.1149/2.0171704jes

Cited by 12 publications

(7 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reactions were first performed with a soluble chloride source, TBACl, to promote formation of soluble aluminum chloride salts in analogy to aluminum dissolution strategies for Al−air batteries. 56,57 In addition, we evaluated a wide range of chelating amine and ethereal Lewis bases that are commonly employed to strip and deposit metal ions at anodes of nextgeneration batteries during cycling (Table S1, SI). 58−70 We identified N,N,N′,N′-tetramethylethylenediamine (TMEDA) as a substoichiometric additive that enabled electrolysis to be sustained at mild potentials (1.6 V, vide infra) throughout the course of the transformation.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…To strip this surface layer from the anode and promote both electrolysis and generation of soluble Al 3+ Lewis acids, we relied on strategies from the energy storage community that have been developed for the solvation and deposition of metal ions at anodes. Reactions were first performed with a soluble chloride source, TBACl, to promote formation of soluble aluminum chloride salts in analogy to aluminum dissolution strategies for Al–air batteries. , In addition, we evaluated a wide range of chelating amine and ethereal Lewis bases that are commonly employed to strip and deposit metal ions at anodes of next-generation batteries during cycling (Table S1, SI). − We identified N , N , N ′, N ′-tetramethylethylenediamine (TMEDA) as a substoichiometric additive that enabled electrolysis to be sustained at mild potentials (1.6 V, vide infra) throughout the course of the transformation. Noted in entry 1, these standard conditions provided complete conversion of TPPO to generate TPP with high selectivity and in high isolable yield. …”

Section: Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Direct and Scalable Electroreduction of Triphenylphosphine Oxide to Triphenylphosphine

2020

View full text Add to dashboard Cite

The direct and scalable electroreduction of triphenylphosphine oxide (TPPO)the stoichiometric byproduct of some of the most common synthetic organic reactionsto triphenylphosphine (TPP) remains an unmet challenge that would dramatically reduce the cost and waste associated with performing desirable reactions that are mediated by TPP on a large scale. This report details an electrochemical methodology for the single-step reduction of TPPO to TPP using an aluminum anode in combination with a supporting electrolyte that continuously regenerates a Lewis acid from the products of anodic oxidation. The resulting Lewis acid activates TPPO for reduction at mild potentials and promotes P−O over P−C bond cleavage to selectively form TPP over other byproducts. Finally, this robust methodology is applied to (i) the reduction of synthetically useful classes of phosphine oxides, (ii) the one-pot recycling of TPPO generated from a Wittig reaction, and (iii) the gram-scale reduction of TPPO at high concentration (1 M) with continuous product extraction and in flow at high current density.

show abstract

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

Direct and Scalable Electroreduction of Triphenylphosphine Oxide to Triphenylphosphine

2020

View full text Add to dashboard Cite

show abstract

“…The stability of the supercapacitor can also be evaluated using GCD [49][50][51]. EIS is a non-destructive technique that is used to evaluate the capacitive performance of the electrode material, while differentiating between resistive and inductive behavior of the energy storage system [52,53].…”

Section: Type Of Charge-storage Mechanismmentioning

confidence: 99%

Supercapacitor Energy Storage Device Using Biowastes: A Sustainable Approach to Green Energy

et al. 2019

View full text Add to dashboard Cite

The demand for renewable energy sources worldwide has gained tremendous research attention over the past decades. Technologies such as wind and solar have been widely researched and reported in the literature. However, economical use of these technologies has not been widespread due partly to cost and the inability for service during of-source periods. To make these technologies more competitive, research into energy storage systems has intensified over the last few decades. The idea is to devise an energy storage system that allows for storage of electricity during lean hours at a relatively cheaper value and delivery later. Energy storage and delivery technologies such as supercapacitors can store and deliver energy at a very fast rate, offering high current in a short duration. The past decade has witnessed a rapid growth in research and development in supercapacitor technology. Several electrochemical properties of the electrode material and electrolyte have been reported in the literature. Supercapacitor electrode materials such as carbon and carbon-based materials have received increasing attention because of their high specific surface area, good electrical conductivity and excellent stability in harsh environments etc. In recent years, there has been an increasing interest in biomass-derived activated carbons as an electrode material for supercapacitor applications. The development of an alternative supercapacitor electrode material from biowaste serves two main purposes: (1) It helps with waste disposal; converting waste to a useful product, and (2) it provides an economic argument for the substantiality of supercapacitor technology. This article reviews recent developments in carbon and carbon-based materials derived from biowaste for supercapacitor technology. A comparison between the various storage mechanisms and electrochemical performance of electrodes derived from biowaste is presented.Sustainability 2019, 11, 414 2 of 22 renewable energy sources such as solar energy, geothermal energy, wind energy, biofuels, etc., while electrochemical energy storage devices such as supercapacitors, rechargeable batteries, etc. have also attracted significant research [9][10][11]. It is not an overstatement to say that successful development of any renewable energy source (e.g., windmills and solar cells), hybrid and electric vehicles and smart grids depend significantly upon the availability of a suitable energy storage system. A considerable amount of literature has been published on the use of supercapacitors as a viable storage device for renewable energy. Over 20,000 articles, books etc. were published in 2017, a higher number of research work is projected for 2018 (data from google scholar). There has been a geometric increase in the research published since the year 2000. Since supercapacitors were first experimented in 1957 by engineers at General Electric, they have found commercial applications in portable electronics, transportation and aerospace industry [12,13]. These applications of supercapacitors ...

show abstract

“…44 The merits and demerits of the above-explained CV, GCD and EIS are summarized in Figure 5. [45][46][47][48][49][50][51][52][53]…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

Integration of supercapacitors and batteries towards high‐performance hybrid energy storage devices

2020

View full text Add to dashboard Cite

Summary Supercapattery devices are currently gaining remarkable attention since they have the potential to meet the demand for high energy density with no constrain on power density, which is much higher in magnitude than supercapacitors and batteries. Nanomaterials based on metal oxides, phosphates, phosphides and sulfides are well utilized in the development and improvement of hybrid energy storage devices. Challenges facing nowadays by this technology, is to enhance the energy density with no compromise on the power density of the device. Merging the merits of the two technologies (supercapacitor and battery) in a single device will provide high specific power from the capacitive part while the battery counterpart overcomes the high energy concerns. In this review, we have focused our study on the recent progress regarding novel nanomaterials as an electrode material, comprising of high specific capacity and cyclic life, for state‐of‐the‐art supercapattery devices. Furthermore, this study may also enlighten the energy performance of the metal oxides, phosphates, phosphides, sulfides and nitrides as an excellent electrode material for high‐performance energy storage devices.

show abstract

Effect of Chloride on Anodic Dissolution of Aluminum in 4 M NaOH Solution for Aluminum-Air Battery

Cited by 12 publications

References 30 publications

Direct and Scalable Electroreduction of Triphenylphosphine Oxide to Triphenylphosphine

Direct and Scalable Electroreduction of Triphenylphosphine Oxide to Triphenylphosphine

Supercapacitor Energy Storage Device Using Biowastes: A Sustainable Approach to Green Energy

Integration of supercapacitors and batteries towards high‐performance hybrid energy storage devices

Contact Info

Product

Resources

About