JOURNAL OF RARE EARTHS
·
2016
·Vol. 34
·期 4
·428-434
·
IF 2.188
Hao TANG,Hui DENG,Qingbo REN,Dingzhou CAI,Yiming REN,Lang SHAO,Yongde YAN,Milin ZHANG
The electrochemical behavior of Pr(III) and formation process of Pr-Al intermetallics were investigated by different electrochemical methods. The reduction of Pr(III) ion to metallic Pr is an one-step three-electrons reaction. The reversibility of Pr(III)/Pr(0) system was evaluated by cyclic voltammograms with different scan rates. The co-reduction of Pr(III) and Al(III) ions formed three different Pr-Al intermetallics at electrode potentials around −1.40, −1.80, and −1.95 V vs. Ag/AgCl at 723 K, respectively. Open-circuit chronopotentiometry and electromotive force (emf) measurements were carried out to estimate the relative molar Gibbs energies of Pr for the formation of different Pr-Al intermetallics in the temperature range of 723–843 K. The activities of Pr in the Pr-Al intermetallic compounds were calculated.
✓ 已验证
DOI
高影响因子
ENERGY
·
2018
·
IF 4.968
Akram Entezari,T.S. Ge,R.Z. Wang
The desiccants made by confined salt in a porous matrix (CSPM) were proposed in the 1990s. Profiting off of a high sorption capacity and a low regeneration temperature made this field very interesting research topic. In absorption refrigeration cycles , adopting multi salts has been investigated widely. LiCl and LiBr are known for their high water adsorption capacity . The combinations of these two salts might be a tool for an intentional modification of CSPMs too. In this study, different ratios of these two salts were impregnated into silica gel pores. The textural properties, water sorption isotherms, and kinetics were analyzed. Four mathematical models were applied for estimating dynamic sorption coefficients. SIM and LDF were well-fitted to describe kinetics. The results showed that impregnated salts molar ratios affect the sorption characteristics. Adding a small amount of LiBr to the LiCl composites intensifies the sorption capacity up to 5.5% while adding LiCl to LiBr decrease this parameter by 12.7%. Besides, a mathematical simulation was used to estimate their performance in a real desiccant cooling heat exchanger . For a standard cooling and dehumidification conditions, the simulation results showed that the binary salt composites might improve the dehumidification if a proper salts ratio was selected.
研究领域:
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Hong Zhang,Qian Du,Xin Du,Zhanglian Xu,Shaoqiang Guo,Wentao Zhou
The electrorefining of spent nuclear fuels in a molten LiCl-KCl salt electrolyte recovers the valuable actinides but also releases radioactive fission products in the salt. To minimize the nuclear waste volume, dissolved fission products such as rare earths (REs) must be removed from the electrorefining salt and immobilized into proper wasteforms. Here we propose a two-step approach for treating the electrorefining waste salt by (i) the electrolytic recovery of REs from the salt using a liquid metal cathode; and subsequent (ii) oxidative extraction of REs from the liquid metal into durable wasteforms. Experimental demonstration using rare earth element samarium (Sm) and liquid metal (Bi) was successful. The Sm ions dissolved in the salt can be selectively recovered as dendrite Sm-Bi intermetallic products on the top of liquid bismuth cathode through electrolysis at appropriate applied currents or potentials. Then the Sm in the Sm-Bi alloy was efficiently extracted into both zinc-in-titania (ZIT) glass ceramic and lanthanide aluminoborosilicate (LABS) glass wasteforms through selective oxidation at Sm 2 O 3 loadings of 18–25 wt% and 50 wt%, respectively. Recycling of the electrorefining salt with minimum nuclear waste generation is foreseeable with the use of this simple, efficient, and highly compatible process.
研究领域:
核化学与技术
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
BIOSCIENCE REPORTS
·
2019
·Vol. 39
·期 1
·
IF 2.535
Chen Gang,Chen Weicheng,Ye Ming,Tan Weiqiang,Jia Bing
Neuroblastoma is the most common tumor in children, with a very poor prognosis. It is urgent to identify novel biomarkers to treat neuroblastoma, together with surgery, chemotherapy, and radiation. Human tripartite motif 59 (TRIM59), a member of the TRIM family, has been reported to participate in several human tumors. However, the exact role of TRIM59 in neuroblastoma is unknown. In the present study, real-time PCR and Western blot were used to measure mRNA and protein levels of TRIM59 in four neuroblastoma cell lines and in neuroblastoma tissues. Lentiviruses targeting TRIM59 were used to up/down-regulate TRIM59 expression levels. Cell Counting Kit-8 and Annexin-V/PI were used to analyze cell proliferation and apoptosis in neuroblastoma cell lines. Our data showed that TRIM59 knockdown inhibits cell proliferation while inducing apoptosis in SH-SY5Y and SK-N-SH neuroblastoma cell lines. TRIM59 knockdown up-regulated expression of Bax and Bim and down-regulated levels of Survivin, β-catenin, and c-myc. Interestingly, the inhibition of cell proliferation caused by TRIM59 knockdown could be blocked by LiCl, which is an agonist of Wnt/β-catenin signaling pathway. In contrast, TRIM59 overexpression could increase cell proliferation, up-regulate Survivin, β-catenin and c-myc, down-regulate Bax and Bim, and these effects could be blocked by XAV939, which is an inhibitor of Wnt/β-catenin signaling pathway. In addition, TRIM59 was up-regulated and positively related with β-catenin in neuroblastoma tissues. In conclusion, TRIM59 was up-regulated in neuroblastoma, and TRIM59 knockdown inhibited cell proliferation by down-regulating the Wnt/β-catenin signaling pathway in neuroblastoma.
研究领域:
肿瘤学
·
细胞生物学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Peng Song,Congcong Li,Ningmiao Zhao,Zhenyuan Ji,Linzhi Zhai,Xiaoping Shen,Qi Liu
Carbon nanosheets with heteroatom doping and well-developed porosity exhibit broad application foreground for Zn-ion hybrid supercapacitors (ZHSCs), but the simple and controllable preparation is still of great challenge. In this study, by using LiCl-KCl as in-built templates, histidine as carbon and nitrogen sources, and KNO 3 , K 2 SO 4 , KOH or Na 2 S 2 O 3 as active agent, a series of N and N S doped porous carbon nanosheets are developed. Results indicate that, with the activator introduction, pore structures of the carbonized products are notably boosted, showing an astounding 30–244 % increase in BET specific surface area, and meanwhile, heteroatom with a content of ca. 12 % can be doped into the resultant carbon skeletons. Specifically, the NSPCN-800 (activated by Na 2 S 2 O 3 ) with a large specific surface area of 1297 m 2 /g, a hierarchically porous structure composed of abundant micropores and mesopores, and a suitable heteroatom content (N: 11.9 wt%; S: 0.6 wt%) presents an impressive energy storage behavior as cathode for ZHSCs, including a specific capacitance of 165.8F/g, a specific capacity of 95.2 mAh/g, an energy density of 59.0 Wh kg −1 and a cyclic stability with a 82.6 % capacity retention after 5000 cycles. These performance parameters surpass numerous reported ZHSCs, making NSPCN-800 a very promising cathode for practical use.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
PubMed
高影响因子
EUROPEAN POLYMER JOURNAL
·
2023
·
IF 6
Chenyan Zhang,Jikui Wang,Shuo Li,Xinquan Zou,Huixian Yin,Yicheng Huang,Feilong Dong,Peiyuan Li,Yaoting Song
As an ideal material for flexible sensors, electrically conductive hydrogels (ECHs) has been faced with water loss and easy freezing, which affects the conductive and tensile properties. Polyacrylamide/sodium alginate/LiCl (PAM/SA/LiCl) hydrogel was constructed to enhance the anti-freezing property without deficiencies of tensile and electrical performance. A semi-interpenetrating network (semi-IPN) was formed by PAM and SA through hydrogen bonding, which performed excellent mechanical property (fracture strain 2100%, fracture stress 110 KPa). LiCl contributed to the high ionic conductivity (up to 21.7 S/m) and sensitivity (Gauge Factor (GF) = 17.45). Double hydrogen bonding of SA and PAM, hydration of LiCl and ion interaction between SA and lithium ion improved the anti-freezing performance and mechanical property of the hydrogel together. The proportion of non-freezing water in system was proved to be significantly increased. The comprehensive properties of the hydrogels were evaluated and PAM/SA/3M LiCl hydrogel kept conductive without obvious loss of stretchability at −30 °C. The PAM/SA/LiCl hydrogel integrates remarkable toughness, conductivity, sensitivity and anti-freezing property, which is a suitable choice in smart wearable devices, soft robots and medical monitoring.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Junyang Shu,Jiacheng Li,Peidong He,Jinshuo Yang,Wenlong Li,Ji Wang,Xiangbiao Yin,Lifeng Chen,Yuezhou Wei
With the growing demand for europium (Eu) in advanced fields such as opto-electronics and nuclear technology, developing efficient extraction methods has become increasingly crucial. This paper focuses on the electro-extraction of europium in LiCl-KCl molten salt, employing Sn and Sn Zn electrodes. The electrochemical behavior of Eu(III) on the Sn electrode in the molten salt system was investigated through cyclic voltammetry (CV), square wave voltammetry (SWV), chronoamperometry (CP), and open circuit chronopotentiometry (OCP) techniques. The results reveal that the reduction of Eu(III) to Eu occurs Eu(III) + e − → Eu(II) and Eu(II) + 2e − + mSn → EuSn m . Furthermore, the electrochemical behaviors of LiCl-KCl-ZnCl 2 -SnCl 2 on the W electrode revealed a peak for the Zn-Sn-Eu alloy. The exchange current density and reaction activation energy of Eu(II)/Eu were calculated on the liquid Sn and Sn Zn electrode through the polarization curve. Subsequently, constant current electrolysis was carried out using Sn and Sn Zn electrodes to extract Eu, and the extraction effect of Eu using a Zn Sn electrode is far superior to that using a Sn electrode. The extracted products were characterized via Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy (SEM-EDS) and X-Ray Diffraction (XRD), and the concentration of Eu(III) in molten salt at different times was detected by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) and the extraction efficiency under different conditions was calculated and the valence state changes of Eu during electrolysis on different electrodes were analyzed using X-ray photoelectron spectroscopy (XPS).
✓ 已验证
产品关联
DOI
高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2026
·
IF 4.5
Quheng Wang,Zhiyuan Ma,Kejie Jiang,Dongshun Deng
Reveal the essence of NH 3 adsorption rapid growth phenomenon for LiCl@SBA-15 composites. • Investigate the effect of pore size of supports on NH 3 adsorption rapid growth phase for LiCl@SBA-15. • LiCl's NH 3 adsorption capacity relates with its aggregated state. • Clarify the distinct NH 3 interaction mechanisms between LiCl and transition metal chlorides. Gaseous ammonia (NH 3 ) poses a threat to human health and the environment. For NH 3 storage, numerous composites of metal salts and solid supports have been reported. However, current research mainly focuses on enhancing NH 3 adsorption capacity, with little discussion on the influence of pore size and LiCl loading amount on NH 3 adsorption for metal salt-based adsorbents. In the present work, common LiCl and SBA-15 were selected to prepare LiCl@SBA-15 composites with different LiCl loading amounts and pore sizes. Based on systematic characterization, their NH 3 adsorption performance was further evaluated. The NH 3 adsorption capacity based on LiCl existed rapid growth phase along with loading amounts, which mainly correlated with the pore size of SBA-15. Textural characterization and density functional theory calculations confirmed that the rapid growth phase aroused by LiCl changing from dispersed state an aggregated state. The larger pore size caused the rapid growth phase to appear earlier. Moreover, the high NH 3 adsorption capacity of LiCl stems from a balance between its dispersed and aggregated states rather than the degree of dispersion alone. For LiCl, ion-dipole interaction plays a dominant role, different from the coordination effect of d orbitals with NH 3 in transition metals. Download: Download high-res image (374KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
PROGRESS IN NUCLEAR ENERGY
·
2026
·
IF 3.2
Yixuan Cai,Mei Li,Hedi Wei,Xudong Wang,Jiayi Chen,Jia Yan,Rugeng Liu,Linshan Zhang,Wei Han
To electrodeposit uranium dioxide from LiCl–KCl molten salt containing Cr 3+ and Ni 2+ , a series of electrochemical techniques were employed to investigate the electrochemical behavior of UO 2 2+ , Cr 3+ , and Ni 2+ . CV and SWV measurements revealed that Cr 3+ is reduced to metallic Cr through a two-step process, while Ni 2+ undergoes a one-step, two-electron process to form metallic Ni. UO 2 2+ is reduced to uranium dioxide via two successive one-electron transfer steps, and its reduction mechanism remains unaffected by the presence of Cr 3+ and Ni 2+ . Chronoamperometry was employed to study the influence of Cr 3+ on the nucleation mechanism of UO 2 2+ , which indicated that the addition of Cr 3+ could decrease the nucleation density of uranium dioxide. In addition, the effects of Cr 3+ and Ni 2+ on the electrodeposition of uranium dioxide were separately explored. In the presence of Cr 3+ , the deposited product contained only uranium dioxide and no Cr was deposited, but the current efficiency was reduced. Pulse electrolysis was carried out and found that current efficiency could be improved by pulse electrolysis in the presence of Cr 3+ . The introduction of Ni 2+ led to the co-deposition of uranium dioxide and Ni, while significantly accelerating the extraction rate of uranium dioxide. Thermodynamic analysis and experimental results indicate that this enhancement arises from the in situ reduction of UO 2 2+ by the deposited Ni, a process that proceeds much faster than the direct electrochemical reduction of UO 2 2+ .
✓ 已验证
DOI
高影响因子
Energy & Environmental Science
·
2026
·
IF 30.5
Xinpeng Zhang,Jiaxuan Liu,Xinyuan Qu,Ao Shen,Xin Wang
Moisture-electric generators (MEGs) that convert the chemical potential energy of atmospheric moisture into electricity through directional ion diffusion hold great promise in the development of sustainable energy. However, current MEGs still encounter considerable challenges with low electrical output and rapid voltage decay due to an insufficient ion concentration gradient and low-efficiency ion migration. Herein, we develop a high-performance MEG based on a carboxylated cellulose nanofiber (CCNF)/LiCl-embedded polyacrylamide (PAM) hydrogel (CLP) sandwiched between laser-induced graphene (LIG) and porous Zn electrodes. The incorporation of CCNF into the PAM hydrogel enables an abundance of dissociated ions and efficient ion transport channels. Synergistic enhancement by the hygroscopic LiCl, the functional groups of CCNF, and interfacial reactions at the Zn electrode achieves a strong moisture gradient, high-efficiency ion transport, and continuous ion supply in the CLP-MEG, thus yielding remarkable electrical outputs of 1.92 V and 2.44 mA cm−2 at 60% RH. In particular, the device can maintain an output voltage of 1.34 V, even after 90 days, significantly outperforming most reported MEGs. Furthermore, the integrated CLP-MEGs connected in parallel or in series are capable of powering twelve hygro-thermographs, 3 × 1.0 W lamps, and one smartphone. This work demonstrates a promising strategy to develop high-performance durable MEGs.
✓ 已验证
DOI
高影响因子
RSC Advances
·
2025
·Vol. 15
·期 56
·48440-48449
·
IF 4.6
Jiake Jin,Simiao Guo,Yue Hu,Yefeng Yang,Pingwei Ye,Xinsheng Peng
Developing adsorbents with excellent photothermal and water uptake properties for solar-driven sorption-based atmospheric water harvesting (SAWH) is full of challenging, which requires a balance between the adsorption capacity, hydrophilicity, and photothermal performance of adsorbent. In this work, a LiCl modfiied porous carbon hollow microspheres (CHM@LiCl) adsorbent with high adsorption capacity (2.07 g g−1) at 100% RH and enhanced low moisture adsorption performance was synthesized by loading LiCl hydrophilic adsorption sites into MOFs-derived hollow porous carbon. LiCl, as the main adsorption site, enhances the hydrophilicity of the CHM@LiCl adsorbent, and its water uptake capacity at 20% RH, 40% RH, 60% RH, and 80% RH are 0.25, 0.39, 0.60 and 1.04 g g−1, respectively. In addition, the hiearchical porous structure of the hollow carbon with mciroporus shell effectively suppresses the salt leakage during water adsorption. The sorbent exhibites stable performance for cycling water adsorption-release, indicating its long-term reliability. The excellent photothermal performance of CHM@LiCl adsorbent can quickly heat up to 67 °C under one sun irradiation, and completely desorb the adsorbed water within 30 minutes. The outdoor water harvesting experiment shows that the CHM@LiCl adsorbent holds great potential for practical solar-driven SAWH with a water collection capacity of 3.3 Lwater kgsorbent−1 day under RH 60%.
研究领域:
材料科学
·
环境工程
·
可再生能源
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Corrosion Communications
·
2025
·
IF 9.5
Zhoufeng Xu,Renzhi Luo,Tao Liu,Chongdou Yang,Tianyu Zhao,Jie Qiu
Molten chloride salt is an ideal heat transfer and storage medium for solar power generation systems. However, the strong corrosion of high-temperature molten salts on metal materials is the main problem limiting its applications in solar thermal power systems. In this work, corrosion behavior of stainless steel 316L in molten chloride salt at 700°C was examined and characterized. Results show that the stability of surface oxide of stainless steel 316L was dramatically jeopardized in high-temperature chloride molten salt. When the oxide film was dissolved, stainless steel 316L corrodes primarily through the selective dissolution of Cr with intergranular corrosion features. Moreover, O impurity in the chloride molten salt enter the alloy matrix through grain boundary and form intergranular oxide of (Fe,Cr,Ni) 3 O 4 spinel, accelerating the intergranular corrosion crack in molten chloride salts.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）