To explore the possibility of absorption of lanthanides via digestive duct and their effects on one membrane structure and permeability of erythrocytes, the fine structure of erythrocyte membrane from Wistar rats, fed...To explore the possibility of absorption of lanthanides via digestive duct and their effects on one membrane structure and permeability of erythrocytes, the fine structure of erythrocyte membrane from Wistar rats, fed for 70 days of daily administration per os with 20 mg CeCl3/kg weight, was imaged by means of atomic force microscopy and FT-IR deconvolution spectra. The results show that, although the erythrocytes maintain the intact shape, the change OT secondary structure, aggregation and crosslinking of the protein particles of membrane surface and the enlarged lipid regions lead to the domain structure formation. This structure might be responsible for the increasing permeability of erythrocyte membrane.展开更多
The stability and safety of aqueous aluminum metal batteries(AAMBs)have garnered an enormous amount of attention.However,severe corrosion during cycling and inefficient deposition behavior at the Al anode hinder their...The stability and safety of aqueous aluminum metal batteries(AAMBs)have garnered an enormous amount of attention.However,severe corrosion during cycling and inefficient deposition behavior at the Al anode hinder their application.In this paper,CeCl_(3)was selected as a water inhibition additive to achieve active water confinement,which dramatically improved the corrosion behavior and prolonged the cycle life of the Al electrode.A combination of spectroscopic characterization and computational analysis showed that Cl^(-)breaks hydrogen bonds in the electrolyte and has higher adsorption energy on Al,thus inhibiting water-induced corrosion.Meanwhile,Ce^(3+)has a stronger affinity for Al than H_(2)O,thus promoting the formation of the surface protective layer.Cl^(-)in the modified electrolyte results in less hydration around Al^(3+).Due to the excellent water inhibition effect of CeCl_(3),the corrosion phenomenon of Al electrodes was significantly improved,and the dominant growth of the Al(111)crystal plane was achieved.Al//Prussian blue analogue(PBA)full cells with CeCl_(3)exhibit significantly improved voltage polarization(0.342 V),cycle life(550 cycles),discharge specific capacity(112 mAh g^(-1)),and selfdischarge behavior(87.97%).The Ce^(3+)in the additive is also able to be co-intercalated into the PBA with Al^(3+),improving the stability of the PBA.However,the conductivity reduction of this strategy at higher concentrations needs to be further addressed.Compared with organic electrolyte and molten salt systems,the cycle life of the aqueous electrolyte in this work still falls short.This modification method paves the way for further development of efficient AAMBs.展开更多
The thermal decomposition of CeCl3·7 H2O was studied from room temperature to 800 ℃. Analysis was performed by applying TG-DTA, XRD, FESEM, EDXS, and TG-MS technologies to investigate the thermal decomposition m...The thermal decomposition of CeCl3·7 H2O was studied from room temperature to 800 ℃. Analysis was performed by applying TG-DTA, XRD, FESEM, EDXS, and TG-MS technologies to investigate the thermal decomposition mechanism of CeCl3·7 H2O in air atmosphere. Multiple forms of hydrated cerium chloride compound were observed in the dehydration products. The CeCl3hydrolysis product was separated by a continuous centrifugation method and the phase composition was identified as CeO2,Ce(OH)3,and CeCl3·4 H2O by XRD analysis. The evolved gas composition was identified as CI2and HCI by TG-MS system. Based on the analysis of the experimental results, the mechanism of thermal decomposition of CeCl3·7 H2O was proposed with completion of the dehydration reaction at 224 ℃,the hydrolysis reaction at 170-480 ℃,and the oxidation reaction of CeCl3above 480 ℃.展开更多
文摘To explore the possibility of absorption of lanthanides via digestive duct and their effects on one membrane structure and permeability of erythrocytes, the fine structure of erythrocyte membrane from Wistar rats, fed for 70 days of daily administration per os with 20 mg CeCl3/kg weight, was imaged by means of atomic force microscopy and FT-IR deconvolution spectra. The results show that, although the erythrocytes maintain the intact shape, the change OT secondary structure, aggregation and crosslinking of the protein particles of membrane surface and the enlarged lipid regions lead to the domain structure formation. This structure might be responsible for the increasing permeability of erythrocyte membrane.
基金financial support from the following sources:the National Natural Science Foundation of China(NSFC)(grants 52171206,52271209)the Key Project of Hebei Natural Science Foundation(F2024201031,E2020201030)+1 种基金the Science Research Project of Hebei Education Department(JCZX2025019)the Interdisciplinary Research Program of Hebei University(DXK202401)。
文摘The stability and safety of aqueous aluminum metal batteries(AAMBs)have garnered an enormous amount of attention.However,severe corrosion during cycling and inefficient deposition behavior at the Al anode hinder their application.In this paper,CeCl_(3)was selected as a water inhibition additive to achieve active water confinement,which dramatically improved the corrosion behavior and prolonged the cycle life of the Al electrode.A combination of spectroscopic characterization and computational analysis showed that Cl^(-)breaks hydrogen bonds in the electrolyte and has higher adsorption energy on Al,thus inhibiting water-induced corrosion.Meanwhile,Ce^(3+)has a stronger affinity for Al than H_(2)O,thus promoting the formation of the surface protective layer.Cl^(-)in the modified electrolyte results in less hydration around Al^(3+).Due to the excellent water inhibition effect of CeCl_(3),the corrosion phenomenon of Al electrodes was significantly improved,and the dominant growth of the Al(111)crystal plane was achieved.Al//Prussian blue analogue(PBA)full cells with CeCl_(3)exhibit significantly improved voltage polarization(0.342 V),cycle life(550 cycles),discharge specific capacity(112 mAh g^(-1)),and selfdischarge behavior(87.97%).The Ce^(3+)in the additive is also able to be co-intercalated into the PBA with Al^(3+),improving the stability of the PBA.However,the conductivity reduction of this strategy at higher concentrations needs to be further addressed.Compared with organic electrolyte and molten salt systems,the cycle life of the aqueous electrolyte in this work still falls short.This modification method paves the way for further development of efficient AAMBs.
基金Project supported by the National Natural Science Foundation of China(51274060)National Sci-Tech Support Plan(2012BAE01B02)Basic scientific research business expenses(N150204019)
文摘The thermal decomposition of CeCl3·7 H2O was studied from room temperature to 800 ℃. Analysis was performed by applying TG-DTA, XRD, FESEM, EDXS, and TG-MS technologies to investigate the thermal decomposition mechanism of CeCl3·7 H2O in air atmosphere. Multiple forms of hydrated cerium chloride compound were observed in the dehydration products. The CeCl3hydrolysis product was separated by a continuous centrifugation method and the phase composition was identified as CeO2,Ce(OH)3,and CeCl3·4 H2O by XRD analysis. The evolved gas composition was identified as CI2and HCI by TG-MS system. Based on the analysis of the experimental results, the mechanism of thermal decomposition of CeCl3·7 H2O was proposed with completion of the dehydration reaction at 224 ℃,the hydrolysis reaction at 170-480 ℃,and the oxidation reaction of CeCl3above 480 ℃.
