ACS Nano
·
2023
·
IF 17.1
Senyang Liu,Xiaohu Liu,Xueyu Zhu,Jinhua Yin,Jie Bao
Large-capacity information encryption has attracted significant interest in the information age. The diversity and controllability of spectra have positioned them to be widely applied for information encryption. Current spectra-based information encryption methods commonly rely on either spectral alteration induced by external stimuli or the utilization of narrowband channels within spectra. However, these methods encounter a common challenge in attaining both high security and large capacity simultaneously. To address these issues, we propose a multiple-channel information encryption system based on quantum dot (QD) absorption spectra. The diversity of QD absorption spectra and their broadband features ensure that the encrypted spectra can hardly be decrypted without knowing the correct channel matrix. Meanwhile, the large capacity is realized through the combination of multiple QD spectral channels with a theoretical maximum capacity of 24.0 bits in a single spectrum. In order to optimize the performance of our proposed system, the selection principle of the channel matrix is established to achieve the rapid identification of the optimal channel matrix in several milliseconds. The additivity of QD spectral channels and the consistency of QD spectra are also explored to minimize the impact of errors on information decryption. Furthermore, two spectral encryption scenarios of spatial pattern and spectral pattern are applied to demonstrate the feasibility, showcasing their ability to achieve both a high level of security and large capacity. Owing to the advantages offered by QD spectra, the QD spectra-based information system exhibits excellent potential for broader applications in information storage, authentication, and computing.
研究领域:
光学
·
信息科学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF POWER SOURCES
·
2020
·
IF 8.247
Xiong Liu,Guobao Xu,Qi Zhang,Shouji Huang,Lun Li,Xiaolin Wei,Juexian Cao,Liwen Yang,Paul K. Chu
Design and fabrication of cathode materials with large capacity and high-rate capability in aqueous zinc ion batteries (AZIBs) are challenging. Herein, ultrathin hybrid nanobelts comprising single-crystalline VO 2 and poly(3,4-ethylenedioxythiophene) (PEDOT) (designated as VO 2 -PEDOT) are synthesized as cathode materials for the AZIBs. The nanobelts have a thickness below 10 nm, large amount of exposed VO 2 (001) facets and discrete PEDOT conductive layers. Systematic structural and electrochemical assessment reveals that simultaneous proton and Zn 2+ insertion into the VO 2 host is efficient in the Zn(CF 3 SO 3 ) 2 electrolyte due to synergistic effects rendered by unique structure of the VO 2 -PEDOT nanobelts. The Zn/VO 2 -PEDOT battery that shows a storage mechanism involving two carriers delivers extraordinary performance including a high capacity of 540 mAhg −1 with 36.3% beyond a high operating voltage of 0.7 V at −0.05 Ag − 1 , high rate capability of 231.2 mAhg −1 at 10 Ag − 1 , excellent cycling stability up to 1000 cycles with capacity retention of 84.5%. Moreover, the 50 μm thick freestanding electrode consisting of ultrathin VO 2 -PEDOT nanobelts has a large areal capacity of 1.35 μAhcm −2 at 5 Ag − 1 . The results provide mechanistic insights into the electrochemistry of VO 2 -based cathodes and reveal a new strategy to improve the performance of the AZIBs especially with regard to grid-scale energy storage.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
电池技术
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 14
·7920-7927
·
IF 14.511
Weihua Zhang,Xiao Han,Jun You,Xiaofang Zhang,Danfeng Pei,Stefan Willför,Mingjie Li,Chunlin Xu,Chaoxu Li
The efficient extraction of the aquatic uranium element has drawn growing research interest because of its importance for both nuclear energy acquirement and water environmental remediation. Large-capacity, rapid filtration adsorption is promising, but remains challenging in capturing aquatic uranium ions. Herein, cyanoethyl substitution was found to enable the rapid exfoliation of cyanoethyl cellulose nanofibrils by mild shear (e.g., manual shake and homogenization) within 30 min with a conversion of up to ∼90% and unique re-dispersibility in many organic solvents. After hydrolyzing cyanoethyl into amidoxime, the resultant amidoximated cellulose nanofibrils, serving as a novel type of green absorbent, exhibited rapid kinetics (<5 min) and large reversible capacity (1327 mg g−1) in aquatic uranium adsorption. Their rigid fibrous feature and super dispersibility facilitated the construction of fibrous porous films to capture uranium ions in high capacity in continuous filtration flow. Therefore, this cyanoethyl exfoliation may not only provide an unprecedented route for the rapid and energy-efficient production of cellulose fibrils, but also promises a green and sustainable alternative for the high-efficiency extraction of aquatic uranium element.
研究领域:
材料科学
·
环境工程
·
核工程
·
化学工程
·
可持续化学
✓ 已验证
产品关联
DOI
高影响因子
Small Methods
·
2021
·Vol. 5
·期 9
·2100437
·
IF 14.188
Xiaoyu Gao,Yixi Kuai,Zhixin Xu,Yongjie Cao,Nan Wang,Shin-ichi Hirano,Yanna Nuli,Jiulin Wang,Jun Yang
Metal selenides have attracted increasing attention recently as anodes for sodium-ion batteries (SIBs) because of their large capacities, high electric conductivity, as well as environmental benignity. However, the application of metal selenides is hindered by the huge volume variation, which causes electrode structure devastation and the consequent degrading cycling stability and rate capability. To overcome the aforementioned obstacles, herein, SnSe 2 /FeSe 2 nanocubes capsulated in nitrogen-doped carbon (SFS@NC) are fabricated via a facile co-precipitation method, followed by poly-dopamine wrapping and one-step selenization/carbonization procedure. The most remarkable feature of SFS@NC is the ultra-stability under high current density while delivering a large capacity. The synergistic effect of dual selenide components and core-shell architecture mitigates the volume effect, alleviates the agglomeration of nanoparticles, and further improves the electric conductivity. The as-prepared SFS@NC nanocubes present a high capacity of 408.1 mAh g −1 after 1200 cycles at 6 A g −1 , corresponding to an 85.3% retention, and can achieve a capacity of 345.0 mAh g −1 at an extremely high current density of 20 A g −1 . The outstanding performance of SFS@NC may provide a hint to future material structure design strategy, and promote further developments and applications of SIBs.
研究领域:
材料科学
·
能量存储
·
纳米技术
·
电化学
✓ 已验证
DOI
高影响因子
Nature Nanotechnology
·
2022
·Vol. 17
·期 6
·613-621
·
IF 40.523
Li Shimei,Huang Junlong,Cui Yin,Liu Shaohong,Chen Zirun,Huang Wen,Li Chuanfa,Liu Ruliang,Fu Ruowen,Wu Dingcai
The low cycling efficiency and uncontrolled dendrite growth resulting from an unstable and heterogeneous lithium–electrolyte interface have largely hindered the practical application of lithium metal batteries. In this study, a robust all-organic interfacial protective layer has been developed to achieve a highly efficient and dendrite-free lithium metal anode by the rational integration of porous polymer-based molecular brushes (poly(oligo(ethylene glycol) methyl ether methacrylate)-grafted, hypercrosslinked poly(4‐chloromethylstyrene) nanospheres, denoted as x PCMS- g -PEGMA) with single-ion-conductive lithiated Nafion. The porous x PCMS inner cores with rigid hypercrosslinked skeletons substantially increase mechanical robustness and provide adequate channels for rapid ionic conduction, while the flexible PEGMA and lithiated Nafion polymers enable the formation of a structurally stable artificial protective layer with uniform Li + diffusion and high Li + transference number. With such artificial solid electrolyte interphases, ultralong-term stable cycling at an ultrahigh current density of 10 mA cm −2 for over 9,100 h (>1 year) and unprecedented reversible lithium plating/stripping (over 2,800 h) at a large areal capacity (10 mAh cm −2 ) have been achieved for lithium metal anodes. Moreover, the protected anodes also show excellent cell stability when paired with high-loading cathodes (~4 mAh cm −2 ), demonstrating great prospects for the practical application of lithium metal batteries.
研究领域:
材料科学
·
电化学
·
储能技术
·
电池技术
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF SEPARATION SCIENCE
·
2024
·Vol. 47
·期 18
·e202400471
·
IF 2.8
Qian Qin,Xiaolong Liu,Xun Wang,Lina Zhou,Huihui Wan,Qingxin Yin,Di Chen
Recombinant proteins hold significant importance in numerous disciplines. As the demand for expressing and purifying these proteins grows, the scientific community is in dire need of a simple yet versatile methodology that can efficiently purify these proteins. Aptamers as synthetic nucleic acid–based ligands with high affinity have shown promise in this regard, as they can capture targets through molecular recognition. In this study, novel aptamer-functionalized polydopamine-coated magnetic graphene oxide nanocomposites were facilely prepared, achieving an impressive average aptamer coverage density (45 nmol/mg). These nanocomposites exhibited a uniform structure and robust magnetic responsiveness. The findings indicated that they possess several advantages, such as rapid adsorption, substantial capacity (171.4 mg/g), and excellent reusability. Notably, due to the inherent properties of nucleic acids, the immobilized aptamer-magnetic beads can be utilized repeatedly with high purification efficiency. Finally, the nanocomposites were further employed to purify His-tagged proteins from actual samples. Remarkably, they were able to selectively and efficiently isolate His-tagged retinoid X receptor alpha protein from complex Escherichia coli lysate. The purified His-tagged retinoid X receptor alpha protein was analyzed using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. This confirmed the efficacy of developed nanocomposites, reinforcing their vast potential for purification of His-tagged recombinant proteins.
研究领域:
生物技术
·
纳米技术
·
蛋白质工程
·
分析化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）