Desulfurization Performance of Rare Earth Mono-substituted Heteropoly Compounds

Pei, Xiaoning; Wang, Rui

doi:10.4209/aaqr.2019.10.0540

Cited by 5 publications

(3 citation statements)

References 48 publications

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“…In Pr 3d spectrum, two peaks at 931.6 and 974.5 eV can be ascribed to Pr 3d 5/2 (Pr 4+ ) and Pr 3d 3/2 (Pr 4+ ) respectively. One satellite peak due to Pr 3d 3/2 is seen at 981.4 eV [40,41] …”

Section: Resultsmentioning

confidence: 99%

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Rare‐Earth Doped Configurational Entropy Stabilized High Entropy Spinel Oxide as an Efficient Anchoring/Catalyst Functional Interlayer for High‐Performance Lithium‐Sulfur Battery

Chatterjee

Ganguly

Ramaprabhu

et al. 2023

Batteries & Supercaps

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Lithium-sulfur batteries (LSBs) are one of the most promising and potential modern-day energy storage devices due to the low-cost sulfur-based cathode and remarkably high energy density (~2600 Wh kg À 1 ). However, the detrimental shuttle effect of lithium polysulfide (LiPS) and the sluggish electrochemical redox kinetics of lithium sulfide (Li 2 S) formation restrict its commercial viability. Herein, we design a novel transition metal-rare earth high entropy oxide (TM-RE HEO) Co 0.08 Mn 0.08 Ni 0.08 Fe 1.96 Mg 0.08 Nd 0.01 Gd 0.01 Sm 0.01 Pr 0.01 O 4 as a polysulfide adsorbent and catalyst for the redox reactions of sulfur species in LiÀ S battery. TM-RE HEO interlayer exhibits an excellent discharge capacity of 1146 mAh g À 1 at 0.1 C rate, high rate capability, and reasonable long-term cycling stability at 0.5 C rate with a low capacity decay of 0.08 % per cycle after 300 cycles. High degree of chemical confinement of soluble polysulfides, as demonstrated by the strong bonding between TM-RE HEO and Li 2 S 6 , and expedited catalytic conversion to insoluble Li 2 S, result from strong polar catalytically active multiple metal sites and abundant oxygen vacancies. This work demonstrates the potential of high entropy oxide in developing high-efficiency LSB technology.

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Section: Resultsmentioning

confidence: 99%

“…One satellite peak due to Pr 3d 3/2 is seen at 981.4 eV. [40,41] To validate the influence of TM-RE HEO in polysulfide entrapment in LSBs, the electrochemical properties of TM-RE HEO are evaluated. Cyclic voltammetry (CV) curves of three samples are presented in Figure 3(a).…”

Section: Resultsmentioning

confidence: 99%

Rare‐Earth Doped Configurational Entropy Stabilized High Entropy Spinel Oxide as an Efficient Anchoring/Catalyst Functional Interlayer for High‐Performance Lithium‐Sulfur Battery

Chatterjee

Ganguly

Ramaprabhu

et al. 2023

Batteries & Supercaps

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“…), and oxygen atoms in certain spatial structure . Due to their unique structure and properties, HPCs have shown broad application prospects in many fields. , In terms of desulfurization, HPCs have been in the field of H 2 S removal due to its strong oxidative, easy regeneration performance, and strong stability. − Based on reports, − HPCs were dissolved in ILs to obtain HPC/IL solutions. The desulfurization and regeneration performance of HPC/IL solutions were investigated; it was found that they have excellent desulfurization and regeneration performance at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Study on Desulfurization and Regeneration Performance of Nanofluid System Based on Heteropoly Compound/Ionic Liquid Solutions

Liu,

Deng,

Niu

et al. 2024

Ind. Eng. Chem. Res.

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Heteropoly compounds were dissolved in ionic liquids to obtain heteropoly compound/ionic liquid solutions. SiO 2 nanoparticles with different mass ratios were introduced into the solutions described above to obtain nanofluids. The desulfurization and regeneration performances of the nanofluids have been explored by dynamic H 2 S absorption experiments. The results showed that the optimal ratio of SiO 2 nanoparticles was confirmed to be 0.05% at 150 °C and the desulfurization efficiency of the nanofluid remained above 97% at 480 min. The nanofluids exhibited lower desulfurization performance at 100 °C than that at 150 °C. It is noteworthy that heteropoly blue has a self-catalytic effect on the absorption process of H 2 S. The results of characterizations revealed that SiO 2 nanoparticles in the nanofluids were covered by heteropoly compounds and sulfur. The morphology of SiO 2 nanoparticles showed no significant change in the absorption−regeneration process. The nanofluids had stable and high desulfurization performance at high temperature and could be regenerated by air easily.

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Tuning the redox activity of polyoxometalate by central atom for high-efficient desulfurization

Wang

Zhang

Wang

2022

Journal of Hazardous Materials

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Desulfurization Performance of Rare Earth Mono-substituted Heteropoly Compounds

Cited by 5 publications

References 48 publications

Rare‐Earth Doped Configurational Entropy Stabilized High Entropy Spinel Oxide as an Efficient Anchoring/Catalyst Functional Interlayer for High‐Performance Lithium‐Sulfur Battery

Rare‐Earth Doped Configurational Entropy Stabilized High Entropy Spinel Oxide as an Efficient Anchoring/Catalyst Functional Interlayer for High‐Performance Lithium‐Sulfur Battery

Study on Desulfurization and Regeneration Performance of Nanofluid System Based on Heteropoly Compound/Ionic Liquid Solutions

Tuning the redox activity of polyoxometalate by central atom for high-efficient desulfurization

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