Preparation, modification and adsorption properties of spinel-type H1.6Mn1.6O4 lithium-ion sieves with spiny nanotube morphology

Xu, Naicai; Liu, Jing; Han, Lingli; Feng, Bingrong; Li, Yingming; Yang, Yujie; Bian, Shaoju

doi:10.1007/s10853-023-08327-4

Cited by 11 publications

(3 citation statements)

References 56 publications

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“…Solution pH value has a significant influence on adsorption performance in the adsorption process because the charge and adsorption active sites on the surfaces of a sorbent and an adsorbate are importantly affected by it [42]. Figure 7 shows the relationship between the original pH value and the Cu 2+ adsorption capacity.…”

Section: The Effect Of Solution Ph On Cu 2+ Adsorptionmentioning

confidence: 99%

Synthesis of High-Crystallinity Mg-Al Hydrotalcite with a Nanoflake Morphology and Its Adsorption Properties for Cu2+ from an Aqueous Solution

Xu,

Shi,

Zhang

et al. 2023

Inorganics

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A magnesium–aluminum-layered double hydroxide (Mg-Al LDH) with a nano-lamellar morphology was prepared by using a homogeneous precipitation and hydrothermal method, and a calcination product (Mg-Al LDO) of the Mg-Al LDH was also obtained in this work. The XRD, TEM, SEM, FTIR, N2 ad/desorption, and TG-DTG techniques were employed to characterize the microstructures, morphologies, and thermostability levels of these two materials in detail. The results showed that both the Mg-Al LDH and Mg-Al LDO had mesoporous structures and nanoplate morphologies, with diameters of 50~200 nm. The Mg-Al LDH was transformed into Mg-Al LDO at 773 K in an air atmosphere. The adsorption properties of the Mg-Al LDH were investigated systematically with a copper chloride solution as a simulated waste. The experimental results demonstrated that the pH value of the solution had an obvious influence on its Cu2+ adsorption capacity, and the optimal pH value was approximately 5.0. The adsorption kinetics results showed that the Mg-Al LDH had a rapid adsorption rate, and the equilibrium adsorption capacity was 62.11 mg/g. Additionally, the Cu2+ adsorption could be commendably described using a pseudo-second-order model, demonstrating that the adsorption behavior is regulated by chemical sorption. The adsorption thermodynamic results indicated that the adsorption process was spontaneous at temperatures above 318 K. Moreover, the ΔG0 values decreased as the temperature was raised, which indicated that a higher temperature can cause a greater impetus for Cu2+adsorption. In addition, the positive values of the ΔH0 indicated that the Cu2+ adsorption was endothermic, and the positive ΔS0 values revealed an increase in the confusion at the solid–liquid interface of the adsorbent.

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Section: The Effect Of Solution Ph On Cu 2+ Adsorptionmentioning

confidence: 99%

Synthesis of High-Crystallinity Mg-Al Hydrotalcite with a Nanoflake Morphology and Its Adsorption Properties for Cu2+ from an Aqueous Solution

Xu,

Shi,

Zhang

et al. 2023

Inorganics

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“…The adsorption method [15][16][17] is a promising trend in lithium extraction technology owing to its high adsorption capacity and selectivity for Li + with low-energy consumption. [18][19][20][21] Lithium adsorption from salt lake brines is also known as one of the direct lithium extraction methods (DLE), which is not limited by the high sodium/lithium ratio and magnesium/lithium ratio of brine and is done without concentrated brine evaporation; the key is to develop a recyclable adsorbent with large adsorption capacity and high selectivity for Li + .…”

Section: Introductionmentioning

confidence: 99%

“…According to Fig.10, a large number of H + are continuously released accompanied with an insertion of an equal amount of Li + onto the active adsorption sites of HTO-P, resulting in a continuous decrease in the pH value. Later, the lithium adsorption process (eqn(20)) is inhibited in the positive direction because of the excessive H + released, which would prevent the further exchange between H + and Li + . NaHCO 3 in contact with water can ionize and produce HCO 3 can go on generating OH À by hydrolysis, as in the reactions in eqn (21) and(22) shown above, which can retard the drastic drop in pH value via constant consumption of H + and continue promoting the H + -Li + ion exchange process in the positive direction, thus improving the adsorption performance of…”

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confidence: 99%

Effect of buffer on direct lithium extraction from Tibetan brine by formed titanium-based lithium ion sieves

Tang,

Zhang,

et al. 2024

New J. Chem.

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Li‐ion Exchange‐Driven Interfacial Buffer Layer for All‐Solid‐State Lithium Metal Batteries

Han,

Liu,

Chen

et al. 2024

Adv Funct Materials

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The goal of achieving batteries with high energy density and high safety profile has been a driving force in developing all‐solid‐state lithium metal batteries (ASSLMBs). However, the complex issues arising from the interfacial interaction between lithium anode/cathode and solid‐state electrolytes (SSE) have hindered the progress of ASSLMBs. This study presents a strategy for constructing an organic/inorganic buffer layer via employing Li‐ion exchanging chemistry of H1.6Mn1.6O4 (HMO) with a flexible matrix of polyethylene oxide (PEO). The buffer layer shows a remarkable ion conductivity of 3.21 × 10−4 S cm−1 at 25 °C originating from the exceptional Li+‐H+ ion exchange capability of HMO. This PEO/HMO buffer layer not only establishes an intimate physical contact between the Li anode/cathode and the SSE but also functions as a dynamic Li+ transfer station to facilitate Li+ movement through the interfaces improving interfacial stability. By pairing with cathodes of LiFePO4 (LFP) and LiNi0.8Co0.1Mn0.1O2 (NCM811), the ASSLMBs feature high‐rate capability and stable cycling performance with low polarization. This marks the utilization of HMO as a superior interfacial material to replace conventional lithium salts, with improved ion transport, decreased polarization, and enhanced overall performances. This constitutes a significant advancement toward the next‐generation energy storage solutions for ASSLMBs.

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Preparation, modification and adsorption properties of spinel-type H1.6Mn1.6O4 lithium-ion sieves with spiny nanotube morphology

Cited by 11 publications

References 56 publications

Synthesis of High-Crystallinity Mg-Al Hydrotalcite with a Nanoflake Morphology and Its Adsorption Properties for Cu2+ from an Aqueous Solution

Synthesis of High-Crystallinity Mg-Al Hydrotalcite with a Nanoflake Morphology and Its Adsorption Properties for Cu2+ from an Aqueous Solution

Effect of buffer on direct lithium extraction from Tibetan brine by formed titanium-based lithium ion sieves

Li‐ion Exchange‐Driven Interfacial Buffer Layer for All‐Solid‐State Lithium Metal Batteries

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