JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2023
·
IF 4.5
Xiaoxian Hu,Jing Qian,Juan Yang,Xiaomin Hu,Yanjiao Zou,Nianjun Yang
Covalent organic frameworks (COFs), a newly emerging kind of porous material, have gained extensive attention due to their fascinating structural features. However, the superiority of COFs as electrochemical sensing materials has not yet been adequately explored. Herein, a new type of core–shell metal–organic framework (MOF)@COF composites are synthesized through in situ growth of TAPB-DMTP-COF on the pre-synthesized Ce-BDC core. The thickness of the COF shell can be controlled to 20–50 nm by adjusting the Ce-MOF mass. It is found that the obtained MOF@COF composite possesses a larger electrochemical active area and faster electron transfer kinetic than its single component. As a case application of this composite, it has been employed as a sensing material for voltammetric detection of metol, where a linear range from 0.1 − 200 μM and a detection limit of 30 nM have been obtained. This study provides a new strategy to synthesize COF-based electrode materials as well as to explore their electrochemical properties and applications.
研究领域:
材料科学
·
电化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2022
·
IF 3.754
Zhuobao Hong,Weihao Ye,Junjian He,Jie Luo,Linliang Yu,Xiaotang Liu
A simple sol-gel method was used to synthesize a hybrid nanostructure which can achieve the switching of dual-modal luminescence of NaYF 4 :Yb 3+ ,Er 3+ @CuInS 2 /ZnS. With 980 nm excitation, the nanoparticles exhibit red emissions, and exhibit green-yellow to red emissions under 365 nm excitation. It is noticed that the CuInS 2 /ZnS acts as a sub-energy level to mediate energy transfer between the rare earth ions of the NaYF 4 and CuInS 2 /ZnS QDs. We found that the dual-modal luminescent properties of the synthesized hybrid nanomaterials can be potentially applied in the field of anti-counterfeiting.
研究领域:
材料科学
·
光学
·
纳米技术
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2018
·
IF 3.057
Wei Zheng,Peigen Zhang,Li Yang,Jian Chen,Wubian Tian,Yamei Zhang,ZhengMing Sun
We report herein a fast and scalable approach to the synthesis of MO/CNT/Fe (MCI) hybrid nanostructures via microwave irradiation of MXene under ambient condition. The effect of three arcing materials, CNT, graphite (C), and carbon fiber (C f ), on the growth of carbon nanotubes on MXene-derived metal oxides were investigated. The resulted MCI nanostructures were tested as anodes in LIBs , all exhibiting better electrochemical performance than that of pristine Ti 3 C 2 . Remarkably, MCI-C f delivered reversible capacities of 430 mA h g −1 and 175 mA h g −1 at 1 A g −1 and 10 A g −1 , respectively, which is much higher than that of commercial graphite at high rates. The findings in this work open new exciting opportunities to developing hybrid electrode materials with high specific capacity for energy conversion and storage.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Yikai Feng,Chen Li,Haoran Jin,Yajuan Sun,Hang Jiang,Yunxing Li,To Ngai
Colloidal particles generated from plant-derived proteins and polysaccharides have high potential as particulate stabilizers since they are environmentally friendly, biocompatible, and biodegradable. It has also been shown that amphiphilic anisotropic particles are more effective particulate stabilizers at the oil/water interface. In this study, a one-dimensional all-in-one zein nanoparticle/cellulose nanofiber hybrid nanostructure (ZCHN) was successfully prepared by self-assembling hydrophilic cellulose nanofibers (CNFs) and hydrophobic zein nanoparticles (ZNPs). The synthetic approach is based on the antisolvent-induced deposition of uniform and discrete ZNPs on the surface of CNFs, with the electrostatic interaction between the two thought to be the main factor for their binding. Furthermore, the microstructure of the generated ZCHN can be easily tuned by the initial mass ratio of zein and CNFs. When compared to ZNPs or CNFs alone or their simple mixture, the emulsion stabilized with ZCHN displayed better long-term, high-temperature, and centrifugation stability. The efficient reduction of oil/water interfacial tension, neutral wettability, and more uniform and high coverage of ZCHN on the droplet surface were the reasons for such better emulsion stability. As an illustration, the resulting emulsion protected β-carotene effectively, exhibiting a significant improvement in stability under UV radiation and high temperature. Therefore, the prepared biocompatible Pickering emulsion is anticipated to have promising applications for the preservation and delivery of fat-soluble bioactive compounds.
研究领域:
食品科学
·
材料科学
·
生物技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Liangyu Tong,Chenyu Song,Yunpeng Liu,Ruimin Xing,Karthi Sekar,Shanhu Liu
Hierarchical hybrid heterostructures are regarded to be promising materials for highly efficient bifunctional electrocatalysts and high-performance supercapacitors due to their intriguing morphological features and remarkable electrochemical properties . Herein, we demonstrate the rational construct of cost-effective MoO x @NiS 2 hybrid nanostructures as bifunctional electrocatalysts and the electrode material of supercapacitor . Microstructural analysis shows that the hybrid is a kind of hierarchical heterostructure composed of open and porous NiS 2 nanowrinkles in situ grown on non-stoichiometric MoO x nanorods , which greatly improves the conductivity, and effectively maximized the electrochemical surface area. As expected, the MoO x @NiS 2 hybrid show remarkable electrocatalytic performance in alkaline media , such as overpotentials of 101 mV at 10 mA cm −2 for hydrogen evolution reaction (HER) and 278 mV at 20 mA cm −2 for oxygen evolution reaction (OER), and a low cell voltage of 1.62 V to deliver a current density of 10 mA cm −2 . Moreover, the hybrid nanostructures present a high specific capacitance 1050 A/g at 1 A/g with ultra-long stability in 6 M KOH. The strategy proposed here introduces a new perspective about the development of efficient earth-abundant bifunctional elecrocatalysts and electrode materials for superior energy conversion and storage devices.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Nanomaterials
·
2017
·Vol. 7
·期 3
·67
·
IF 3.553
Chongdai Luo,Yangyang Wang,Xuemeng Li,Xueqin Jiang,Panpan Gao,Kang Sun,Jianhua Zhou,Zhiguang Zhang,Qing Jiang
Saliva contains important personal physiological information that is related to some diseases, and it is a valuable source of biochemical information that can be collected rapidly, frequently, and without stress. In this article, we reported a new and simple localized surface plasmon resonance (LSPR) substrate composed of polyaniline (PANI)-gold hybrid nanostructures as an optical sensor for monitoring the pH of saliva samples. The overall appearance and topography of the substrates, the composition, and the wettability of the LSPR surfaces were characterized by optical and scanning electron microscope (SEM) images, infrared spectra, and contact angles measurement, respectively. The PANI-gold hybrid substrate readily responded to the pH. The response time was very short, which was 3.5 s when the pH switched from 2 to 7, and 4.5 s from 7 to 2. The changes of visible-near-infrared (NIR) spectra of this sensor upon varying pH in solution showed that—for the absorption at given wavelengths of 665 nm and 785 nm—the sensitivities were 0.0299 a.u./pH (a.u. = arbitrary unit) with a linear range of pH = 5–8 and 0.0234 a.u./pH with linear range of pH = 2–8, respectively. By using this new sensor, the pH of a real saliva sample was monitored and was consistent with the parallel measurements with a standard laboratory method. The results suggest that this novel LSPR sensor shows great potential in the field of mobile healthcare and home medical devices, and could also be modified by different sensitive materials to detect various molecules or ions in the future.
研究领域:
生物医学工程
·
分析化学
·
材料科学
✓ 已验证
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2012
·
IF 5.602
Minggang Zhao,Jingyun Huang,Yu Zhou,Qi Chen,Xinhua Pan,Haiping He,Zhizhen Ye
A novel method of fabricating a free probe type nanoscale biosensor is first demonstrated. A free probe type biosensor based on a single one-dimensional (1D) mesoporous ZnO/Chitosan inorganic–organic hybrid nanostructure is constructed. The as-prepared biosensor exhibited excellent biosensing performance and was stable in solution due to its inorganic–organic hybrid structure. The special mesoporous nanostructure with protuberances favors enzymes loading and enhances electrical communication efficiency. The feasibility of employing a single 1D nanostructure as a separate free nanoprobe for biosensing is demonstrated. This kind of free probe type biosensor will not only provides a new tool for micro-targets detection in microcell and enzymatic studies, but also has the potential to be inserted into single cell or other microorganism for biological studies.
研究领域:
材料科学
·
生物传感
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2019
·Vol. 136
·期 48
·48214
·
IF 2.188
Jiakang Min,Xiaodong Xu,Jiaxin Li,Changde Ma,Jiang Gong,Xin Wen,Xuecheng Chen,Jalal Azadmanjiri,Tao Tang
The derived lysine from biomass fermentation is a naturally abundant renewable resource. However, the small molecular size of lysine limits its processing and application. On the other side, carbonization of polylysine into high-valued carbon materials is one of convenient options to apply for energy storage devices. Herein, we prepare polylysine@silica hybrid nanostructure through thermal polymerization of lysine and biosilicification of tetraethoxysilane (TEOS). Subsequently, nitrogen-containing porous carbon flakes (NPCF) are synthesized upon carbonization. Interestingly, the synthesized NPCF presents hierarchical porous framework structure with interconnected micro-meso-macro pores. Consequently, the NPCF delivers an excellent supercapacitor performance. For instance, our characterizations display specific capacitance up to 242 F/g at 1 mV/s and 186 F/g at 1 A/g, and could keep 96.3% initial capacity after 10,000 cycles at 10 A/g. These achievements are because of hierarchical porosity, proper nitrogen content, and accessible surface area of nanostructured NPCF. Therefore, our work creates a novel and sustainable route for fabricating NPCF with promising applications in the supercapacitors. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 48214.
研究领域:
材料科学
·
能源存储
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2013
·
IF 5.437
Zhicai Xing,Jingqi Tian,Abdullah M. Asiri,Abdullah H. Qusti,Abdulrahman O. Al-Youbi,Xuping Sun
In this article, for the first time, two-dimensional hybrid mesoporous Fe 2 O 3 –graphene (mFe 2 O 3 –G) nanostructures were developed as a peroxidase mimetic with catalytic activities superior to those of mFe 2 O 3 , G, and previously reported Fe-based peroxidase mimetics. The high-surface-area mFe 2 O 3 not only offers a large number of catalytically active sites, but also facilitates the diffusion of 3,3,5,5-tetramethylbenzidine (TMB) and H 2 O 2 toward G surface. On the other hand, G is π-rich and thus favors the adsorption and enrichment of TMB within these pores. These synergistic effects lead to highly improved catalytic performances. Based on these findings, a simple, rapid, and highly sensitive and selective optical detector of glucose has been developed and demonstrated in buffer solution with a pretty low detection limit of 0.5 μM. In addition, this nanosensor is reusable and can also be used for glucose detection in diluted serum.
研究领域:
生物医学工程
·
纳米技术
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Scientific Reports
·
2014
·Vol. 4
·期 1
·1-7
·
IF 5.078
Feng Yan,Liu Hui,Wang Pengfei,Ye Feng,Tan Qiangqiang,Yang Jun
The integration of different components into a hybrid nanosystem for the utilization of the synergistic effects is an effective way to design the electrocatalysts. Herein, we demonstrate a hybrid strategy to enhance the electrocatalytic property of hollow structured Pt nanoparticles for methanol oxidation reaction. This strategy begins with the preparation of bimetallic Ag-Pt nanoparticles with a core-shell construction. Element sulfur is then added to transform the core-shell Ag-Pt nanostructures into hybrid nanodimers consisting of Ag 2 S nanocrystals and remaining Pt domains with intact hollow interiors (Ag 2 S-hPt). Finally, Au is deposited at the surface of the Ag 2 S domain in each hetero-dimer, resulting in the formation of ternary Ag 2 S-Au-hPt nanocomposites with solid-state interfaces. The ternary nanocomposites exhibit enhanced electrocatalytic property toward methanol oxidation due to the strong electronic coupling between Pt and other domains in the hybrid particles. The concept might be used toward the design and synthesis of other hetero-nanostructures with technological importance.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2010
·
IF 3.203
Songjun Zeng,Lei Ye,Sijia Yan,Guoliang Wu,Yuanqin Xiong,Weijian Xu
Amphibious proton exchange membranes (PEMs) which could be used under both wet and dry conditions were prepared by sol–gel method in this work. Those novel hybrid PEMs were constructed by three parts: (1) polysiloxane with two basic sites (–NH– on the pendant and N– in the triazole); (2) H 3 PO 4 as the proton source; (3) poly(vinyl alcohol) (PVA) which had good film-forming capacity and ability to anchor the H 3 PO 4 under wet conditions. The resulting hybrid membranes were thermally stabilized up to 200 °C. A matrix-change between polysiloxane and PVA could be observed at a high PVA doping level. The proton conducting property of these membranes was investigated under both hydrous and anhydrous conditions. From 25 to 120 °C, the non-soaked and soaked (soaked in the water) membranes showed the proton conductivity of 19–68 and 9–31 mS cm −1 at 100% relative humidity (RH), respectively. Under completely dry conditions, the proton conductivity of these membranes showed large dependence on the temperature and the proton conductivity of 4.7–21 mS cm −1 was achieved at 150 °C for these membranes. The excellent performance of these hybrid membranes under both wet and dry conditions demonstrated that they have potential use as electrolytes in polymer electrolyte membrane fuel cells (PEMFCs) operating either in a watery or in a water-free environment and so called “amphibious” proton conducting membranes.
研究领域:
材料科学
·
高分子化学
·
能源材料
·
燃料电池
·
纳米科技
✓ 已验证
DOI
高影响因子
NATURE MATERIALS
·
2025
·Vol. 24
·期 11
·1716-1725
·
IF 38.5
Zhang Zhi,Zhang Yuwei,Lu Kangjun,Zhang Jun-Jie,Zhang Nannan,Feng Rui,Ye Haoran,Zhou Xiaoli,Li Linglong,Wan Dongyang,Lu Junpeng,Ni Zhenhua,Wang Jinlan,Chen Qian,Lu Jiong,Li Zejun
Rolling two-dimensional materials into one-dimensional nanoscrolls introduces curvature, chirality and symmetry breaking, enabling emergent properties. Conventional methods relying on external driving forces, however, exhibit poor control, low yield and limited reproducibility. Here we report spontaneous scrolling in polar van der Waals materials via an electrochemical intercalation/exfoliation process, enabling scalable nanoscroll production. This self-rolling is driven intrinsically by out-of-plane electric polarization ( P ⊥ ), where the magnitude of P ⊥ is modulated by the intercalant size. Validated across eight polar materials, this approach achieves virtually 100% yield and reproducibility with defined scrolling direction, surpassing external driving force limitations. The nanoscrolls exhibit layer-independent inversion symmetry breaking and coherently enhanced second-harmonic generation, exceeding two-dimensional flakes by ~100-fold and rivalling leading two-dimensional nonlinear materials. Electrochemical initiation further facilitates metal-ion co-intercalation, yielding ten hybrid nanoscroll architectures. These findings establish a scalable route to create one-dimensional nanostructures and hybrid heterostructures, paving the way for designer quantum solids and van der Waals superlattices in quantum nanodevices.
研究领域:
材料科学
·
纳米技术
·
凝聚态物理
·
非线性光学
·
量子材料
✓ 已验证
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）