Effect of surface change by vacuum drying on the sedimentation stability of iron nanoparticles in volatile organic solvents

Ha, Hong-Soo; Thompson, Russ; Matteini, Paolo; Yoo, Seung Jo; Hwang, Byungil

doi:10.1016/j.colcom.2022.100625

Cited by 6 publications

(3 citation statements)

References 25 publications

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“…The Turbiscan results confirmed that F-Al 2 O 3 could form a more stable dispersion in the plasticizer PEGDME than the pristine Al 2 O 3 . [20][21][22] To compare the dispersion stability of Al 2 O 3 with F-Al 2 O 3 in the solid polymer electrolyte film, we tried to make a film by spin-coating the liquid precursor dispersed with the inorganic particles. However, it failed to produce a film by spin-coating the precursor.…”

Section: Resultsmentioning

confidence: 99%

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Incorporating Ethylene Oxide Functionalized Inorganic Particles to Solid Polymer Electrolytes for Enhanced Mechanical Stability and Electrochemical Performance

Bae

Suk

Park

et al. 2023

Adv Energy and Sustain Res

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Solid‐state batteries based on polymer electrolytes attract increasing interest owing to their high feasibility of roll‐to‐roll mass production. However, the mechanical strength of polymer electrolytes is not sufficient to suppress the formation of lithium dendrites, leading to early capacity fading. Many researchers have attempted to reinforce polymer electrolytes by adding inorganic particles, but insufficient compatibility between the particles and electrolytes can cause particles to agglomerate, deteriorating the mechanical stability of the resulting hybrid electrolytes. Herein, surface‐functionalized inorganic particles are used to prepare hybrid polymer electrolytes (HPEs). The surface of aluminum oxide (Al2O3) nanoparticles is chemically modified by an organic material containing an ethylene oxide (EO) group. The EO group on the functionalized Al2O3 (F‐Al2O3) enables uniform dispersion of the nanoparticles in the EO polymer electrolytes and improves the ionic conductivity and electrochemical stability. The nanoindentation measurements show that the hybrid polymer electrolytes with F‐Al2O3 (HPE‐F‐Al2O3) have enhanced stiffness. The electrochemical stability and ionic conductivity of the polymer electrolytes also benefit from incorporating F‐Al2O3. As a result, a lithium polymer battery with Li anode, LiNi0.6Co0.2Mn0.2O2 (NCM622) cathode, and HPE‐F‐Al2O3 electrolyte demonstrates stable long‐term cycling with a capacity retention of up to 87% over 100 cycles.

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Section: Resultsmentioning

confidence: 99%

“…The Turbiscan results confirmed that F‐Al 2 O 3 could form a more stable dispersion in the plasticizer PEGDME than the pristine Al 2 O 3 . [ 20–22 ]…”

Section: Resultsmentioning

confidence: 99%

Incorporating Ethylene Oxide Functionalized Inorganic Particles to Solid Polymer Electrolytes for Enhanced Mechanical Stability and Electrochemical Performance

Bae

Suk

Park

et al. 2023

Adv Energy and Sustain Res

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show abstract

“…Despite the importance of surface characterization of materials, the conventionally adopted method to determine the surface energy involves measuring the contact angle between the liquid droplet and the solid surface interface [17][18][19][20][21][22]. This liquid droplet contact angle measurement can only measure at bulk scale or microscale owing to the inert size of the liquid droplet, thereby limiting nanoscale measurements.…”

Section: Introductionmentioning

confidence: 99%

Peakforce Quantitative Nanomechanical Mapping for Surface Energy Characterization on the Nanoscale: A Mini-Review

Ha,

Müller,

Baumann

et al. 2024

FU Mech Eng

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Surface energy characterization is important to design the fabrication process of reliable electronic devices. Surface energy is influenced by various factors such as surface functionality and morphology. Owing to the high surface-to-volume ratio, surface energy at the nanoscale can be different from that of the bulk. However, the conventional methods for characterization of surface energy such as a sessile drop or Washburn methods cannot be used for nanoscale samples, owing to the limited volume for characterization. Recently, surface energy characterization on the nanoscale using atomic force microscopy (AFM) with Peak Force-Quantitative Nanomechanical Mapping (PF-QNM) imaging mode has been proposed. The nanoscale AFM tips measure the adhesion forces at the nanoscale, which are converted into surface energy through pre-calibrated curves. Successful surface energy characterization of nanoscale metal samples using AFM with the PF-QNM method has been reported previously. This mini-review discusses the recent progress on surface energy characterization at the nanoscale using AFM with the PF-QNM method. The fundamentals of the PF-QNM mode are introduced, and the results of surface energy characterization are summarized. Consequently, the future research direction for surface energy characterization at the nanoscale is discussed.

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Influence of grain boundary density on the surface energy of nanocrystalline metal thin films

Goh

et al. 2022

Applied Surface Science

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Effect of surface change by vacuum drying on the sedimentation stability of iron nanoparticles in volatile organic solvents

Cited by 6 publications

References 25 publications

Incorporating Ethylene Oxide Functionalized Inorganic Particles to Solid Polymer Electrolytes for Enhanced Mechanical Stability and Electrochemical Performance

Incorporating Ethylene Oxide Functionalized Inorganic Particles to Solid Polymer Electrolytes for Enhanced Mechanical Stability and Electrochemical Performance

Peakforce Quantitative Nanomechanical Mapping for Surface Energy Characterization on the Nanoscale: A Mini-Review

Influence of grain boundary density on the surface energy of nanocrystalline metal thin films

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