Ordered nano-structured mesoporous CMK-8 and other carbonaceous positive electrodes for rechargeable aluminum batteries

Li, Chi; Rath, Purna Chandra; Lu, Shi Xian; Patra, Jagabandhu; Su, Ching Yuan; Bresser, Dominic; Passerini, Stefano; Chang, Jeng Kuei

doi:10.1016/j.cej.2021.129131

Cited by 16 publications

(17 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As expected from half-cell experiments, AIB with CXG 500 material exhibited best charge/discharge behaviour up to 28 mAh g −1 at 0.1 A g −1 with nearly 98% coulombic and 60% energy efficiency (see Figure 8 ). This value is in good agreement with recently published values for soft-carbon (SC) electrodes from Li et al [ 82 ] who found a capacity of 28.2 mAh g −1 at 0.3 A g −1 current density. With increasing R/C ratio, however, the performance of AIB dropped continuously from about 15–20 mAh g −1 for cells with CXG 750 and CXG 1000 materials to a few mAh for the other systems.…”

Section: Resultssupporting

confidence: 92%

Influence of Resorcinol to Sodium Carbonate Ratio on Carbon Xerogel Properties for Aluminium Ion Battery

2022

View full text Add to dashboard Cite

Carbon xerogels were synthesized using a soft-template route with resorcinol as the carbon source and sodium carbonate as the catalyst. The influence of the resorcinol to catalyst ratio in the range of 500–20,000 on pore structure, graphitic domains, and electronic conductivity of as-prepared carbon xerogels, as well as their performance in an aluminium ion battery (AIB), was investigated. After carbonization steps of the polymers up to 800 °C, all carbon samples exhibited similar specific volumes of micropores (0.7–0.8 cm³ g−1), while samples obtained from mixtures with R/C ratios lower than 2000 led to carbon xerogels with significantly higher mesopore diameters up to 6 nm. The best results, in terms of specific surface (1000 m² g−1), average pore size (6 nm) and reversible capacity in AIB cell (28 mAh g−1 @ 0.1 A g−1), were obtained with a carbon xerogel sample synthetized at a resorcinol to catalyst ratio of R/C = 500 (CXG500). Though cyclic voltammograms of carbon xerogel samples did not exhibit any sharp peaks in the applied potential window, the presence of both oxidation and a quite wide reduction peak in CXG500–2000 cyclic voltammograms indicated pseudocapacitance behaviour induced by diffusion-controlled intercalation/de-intercalation of AlCl4− ions into/from the carbon xerogel matrix. This was confirmed by shifting of the (002) peak towards lower 2θ angle values in the XRD pattern of the CXG500 electrode after the charging step in AIB, whereas the contribution of pseudocapacitance, calculated from half-cell measurements, was limited to only 6% of overall capacitance.

show abstract

Section: Resultssupporting

confidence: 92%

Influence of Resorcinol to Sodium Carbonate Ratio on Carbon Xerogel Properties for Aluminium Ion Battery

2022

View full text Add to dashboard Cite

show abstract

“…The decrease in capacity with an increasing current is mainly due to the capacitive behavior (the charge stores near the electrode surface) dominating over the diffusion-controlled process at a high current. 65 The cycling performance of this electrode (Figure 7d) suggests that its capacity decays sharply in the first 20 cycles and then stabilizes after 50 cycles, with the capacity reaching only ∼40 mAh/g and a retention rate of around 22%, although the CE is somehow satisfactory (>95% for most cycles). A similar rate capability and cycling performance for the TiO 2 electrode derived from [Bmim]BF 4 have been observed (panels b and e of Figure 7).…”

Section: Resultsmentioning

confidence: 92%

“…The charge/discharge capacity for the TiO 2 electrode from [Bmim]Br decreases with an increasing current density from ∼150 mAh/g at 20 mA/g to <50 mAh/g at 200 mA/g, as shown in Figure a, indicating its poor performance at high current densities. The decrease in capacity with an increasing current is mainly due to the capacitive behavior (the charge stores near the electrode surface) dominating over the diffusion-controlled process at a high current . The cycling performance of this electrode (Figure d) suggests that its capacity decays sharply in the first 20 cycles and then stabilizes after 50 cycles, with the capacity reaching only ∼40 mAh/g and a retention rate of around 22%, although the CE is somehow satisfactory (>95% for most cycles).…”

Section: Results and Discussionmentioning

confidence: 95%

Open-Structured Oxyfluorinated Titanium Phosphate Nanosheets Synthesized with the Assistance of an Ionic Liquid and Their Use as an Anode in Lithium-Ion Batteries

Gao

et al. 2021

Energy Fuels

View full text Add to dashboard Cite

Two-dimensional Ti 2 (PO 4 ) 2 F nanosheets were synthesized with an ionic liquid (IL) containing PF 6 ([Bmim]PF 6 ) via a hydrothermal method. In comparison, only anatase titanium dioxide (TiO 2 ) nanoparticles were obtained when changing the type of anion ([Bmim]Br or [Bmim]BF 4 ) under the same conditions, suggesting that the anion type could greatly affect the crystalline phase, particle size, specific surface, and morphology of the final products; two-dimensional nanosheets were obtained in [Bmim]PF 6 , whereas nanocrystals with a relatively large surface were formed in the latter two ILs, as revealed by X-ray diffraction, nitrogen gas sorption, scanning electron microscopy, and transmission electron microscopy measurements. 1 H and 19 F nuclear magnetic resonance examinations of the fresh and recycled ILs suggest that the IL with the PF 6 anion experienced complete hydrolysis, which could be the key factor for the formation of such unique Ti 2 (PO 4 ) 2 F nanosheets. The electrochemical performances of such Ti 2 (PO 4 ) 2 F nanosheets were evaluated as anode materials in lithium-ion batteries (LIBs) in comparison to TiO 2 nanomaterials. The rate capability and cycling performance of the Ti 2 (PO 4 ) 2 F electrode outperformed the other two electrodes studied, as illustrated by cyclic voltammetry curves, charge/discharge behavior, and long cycling test, which is mainly due its unique layered structure and low surface area, which resulted in low volume change. The Ti 2 (PO 4 ) 2 F electrode derived from [Bmim]PF 6 displays a steady reversible capacity of 170 mAh/g and high cycling stability with over 70% capacity retention after 100 cycles. The synthesis of the controllable crystalline phase and morphology of Ti 2 (PO 4 ) 2 F nanomaterials with such ILs paves a useful route to prepare such alternative anode materials for LIBs.

show abstract

“…[17][18][19][20][21][22][23] Concretely, carbon-based materials possess high voltage and robust structures but limited capacity. [24][25][26][27][28][29][30] Highcapacity transition metal compounds exhibit low voltage and short cycling life. [31][32][33][34][35][36][37][38] Accordingly, it is imperative to ameliorate the aluminum-storage properties of cathode materials.…”

Section: Introductionmentioning

confidence: 99%

Boron-doping-induced defect engineering enables high performance of a graphene cathode for aluminum batteries

Zhang

Kang

et al. 2022

Inorg. Chem. Front.

View full text Add to dashboard Cite

show abstract

Ordered nano-structured mesoporous CMK-8 and other carbonaceous positive electrodes for rechargeable aluminum batteries

Cited by 16 publications

References 73 publications

Influence of Resorcinol to Sodium Carbonate Ratio on Carbon Xerogel Properties for Aluminium Ion Battery

Influence of Resorcinol to Sodium Carbonate Ratio on Carbon Xerogel Properties for Aluminium Ion Battery

Open-Structured Oxyfluorinated Titanium Phosphate Nanosheets Synthesized with the Assistance of an Ionic Liquid and Their Use as an Anode in Lithium-Ion Batteries

Boron-doping-induced defect engineering enables high performance of a graphene cathode for aluminum batteries

Contact Info

Product

Resources

About