Materials Advances
·
2022
·Vol. 3
·期 8
·3631-3641
·
IF 0
Jia Luo,Huaiyu Li,Guo Yu,Wenyuan Xu,Hong Yin,Zhaohui Hou
Tin monosulfide (SnS) anodes have attracted much attention for lithium-ion batteries (LIBs) due to their excellent chemical stability, high theoretical specific capacity and outstanding reversibility. However, the slow kinetics and large volume expansion of intrinsic SnS electrodes in the conversion reaction process restrict their application to a certain extent. To address the poor conductivity and volume fluctuation, N-doped double-carbon-layer protective hierarchical structures decorating SnS nanotubes (N-DCSNs) are introduced by in situ polymerization directed using a g-C3N4 soft template. Particularly, N-doped double carbon layers provide fast transport channels for electrons and ions, affording decent conductivity and rapid ionic diffusion rate. Most importantly, the volume expansion of SnS during the charge–discharge cycles can be buffered owing to the confinement effect of the double carbon layer. Synergistic effects of N-DCSNs enhance the mechanical integrity and electrochemical kinetics during the charge–discharge process, leading to high-capacity retention and long-term stability properties. As a remarkable anode for LIBs, the N-DCSN electrode delivers high capacities of 911.5 and 511.3 mA h g−1 at 0.2 and 1.0 A g−1 after 270 and 1000 cycles, respectively. The feasible and versatile structure design can offer new ideas for the preparation and regulation of other transition metal sulfide anode materials, and provide a relevant experimental basis for the further development of lithium/sodium storage equipment.
✓ 已验证
产品关联
DOI
Soft Matter
·
2022
·Vol. 18
·期 14
·2829-2841
·
IF 4.046
Weihao Pan,Jiahao Dong,Taijiang Gui,Ren Liu,Xiaoya Liu,Jing Luo
A novel kind of inhibitor-loaded polyaniline (PANI) microcapsule was prepared by Pickering emulsion photopolymerization using polyaniline particles as the Pickering emulsifier. In our strategy, water-dispersible polyaniline nanoparticles were firstly synthesized using a micelle template method and used to stabilize oil-in-water emulsions, in which the oil phase contained photo-crosslinkable and pH sensitive monomers and a photo-initiator. Under UV light, the pH-responsive monomers underwent photo-polymerization and crosslinking and converted to microcapsule shells. During this process, polyaniline nanoparticles were trapped in the microcapsule shells, leading to the formation of PANI microcapsules. The structure and morphology of the synthesized PANI microcapsules were analyzed using FTIR spectroscopy, SEM, and EDX mapping. The inhibitor (mercaptobenzothiazole, MBT) was subsequently incorporated into the PANI microcapsule as a functional core and demonstrated pH-sensitive releasing behavior. With the anti-corrosive PANI as the microcapsule wall and the inhibitor MBT as the core, the as-prepared MBT loaded PANI (MBT@PANI) microcapsule could afford dual corrosion protection, allowing smart protection of metals when exposed to corrosive conditions. The MBT@PANI microcapsules were embedded in UV-cured coating for protecting steel. The corrosion protection performance of the coating with MBT@PANI microcapsules was evaluated using the electrochemical impedance spectroscopy technique and salt spray test, which demonstrated the synergistic inhibition effect of the PANI wall and the loaded MBT in improving anti-corrosion performance of the coating.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
·
2022
·Vol. 414
·期 17
·4837-4847
·
IF 4.478
Lv Xiaoyi,Hu Qiong,Miao Tian,Li YanPing,Cui Bo,Fang Yishan
Herein, we fabricated a label-free ECL immunosensor for aflatoxin B 1 (AFB 1 ) detection. In this system, a small organic aggregation-induced electrochemiluminescence luminophore, 2,5-di-tetraphenylethylene-ylthiazolo [5,4-d] thiazole, was designed, named TPETTZ. Polyaniline-wrapped TiO 2 nanoparticles (PANI/TiO 2 NPs) complex was synthesized through one-step in situ oxidation polymerization of aniline, and performed excellent electrical conductivity and abundant amino groups. As an ECL accelerator, TiO 2 nanoparticles (TiO 2 NPs) promoted the oxidation of tri- n -propylamine (TPA) to generate more TPA • ; in addition, it also acted as a donor to improve the ECL intensity of TPETTZ (acceptor) through electrochemiluminescence resonance energy transfer (ECL-RET). Encouraged by the above, under the existence of TPA, TPETTZ displayed a strong and continuously stable ECL anode signal due to the introduction of PANI/TiO 2 NPs. Therefore, the immunosensor was constructed for AFB 1 detection based on the quenching effect of target on the ECL signal, and a linearly decreasing ECL signal was obtained as the increasement of AFB 1 in the range of 75 fg/mL to 100 ng/mL, with a lower detection limit of 27.5 fg/mL. Moreover, the as-prepared sensing platform performed a satisfactory anti-interference, stability, and reproducibility, and appeared a good accuracy in walnut sample analysis, presenting a promising application in the future.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CATALYSIS
·
2022
·
IF 8.047
Chuncheng Lin,Jiamin Zhou,Zhangfan Zheng,Jinzhu Chen
Tertiary amines, currently obtained from fossil resources by a multi-step synthetic method, are important compounds in both chemical industry and organic transformations. Herein, we demonstrated highly efficient and convenient strategy to various biomass-based tertiary amines in excellent yields (85–95%) by a direct and consecutive reductive amination of furfural with various amines in one-pot using rhodium phosphide (Rh 2 P) catalyst. Typically, biomass-based tris (2-furanylmethyl)amine in 92% yield was directly obtained from furfural and HCOONH 4 in one-step. Time-dependent reaction profiles suggested a consecutive amination/hydrogenation pathway with furfurylamine-derived Schiff base and secondary amine as successively detected intermediates. The superiority of Rh 2 P was ascribed to its excellent low-temperature hydrogenation activity, which is structurally attributed to an efficient electron-transfer from P atoms (on the P-terminated Rh 2 P) to their bonded and dissociated H atoms. This research thus highlights a powerful, elegant, and attractive approach to biomass-based tertiary amines for a sustainable extension of amine chemistry.
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2022
·Vol. 24
·期 17
·3217-3229
·
IF 3.756
Yang Tao,Xiaoting Liu,Yunping Zhoujin,Panpan Zhou,Sean Parkin,Tonglei Li,Ju Guo,Faquan Yu,Sihui Long
To probe the effect of substitution on the benzoic acid ring on the polymorphism of phenylaminobenzoic acids, five 3-methyl-2-(phenylamino)benzoic acids (MPABAs) were synthesized. A preliminary polymorph screen led to one form for compounds 1–4 and three forms and a solvate (5-I, 5-II, 5-III, and 5-S) for compound 5. This observation is similar to that of the structurally related compounds with no substitution on the benzoic acid ring. All crystal forms were characterized by single-crystal X-ray diffraction, powder X-ray diffraction (PXRD), and FT-IR spectroscopy. The polymorphs of compound 5 were investigated in detail experimentally and theoretically. A conformational scan provided insight into the origin of polymorphism of 5. NBO calculations confirmed the composition and nature of the sigma bond character of the two N–C bonds in 5. Hirshfeld analysis accounted for the major intermolecular interactions contributing to the overall stability of the crystals. It is clear that conformational flexibility alone doesn't lead to polymorphism, and substitution position and pattern are the real determinant of polymorphism in the investigated compounds.
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2022
·
IF 9.221
Chonghui Zhu,Yifeng Xu,Tingting Zhou,Lichao Liu,Qidai Chen,Bingrong Gao,Tong Zhang
Developing a sensor with high selectivity and fast response-recovery time for detecting ammonia gas in complex environments is a challenging task. However, recent polymer-based ammonia gas sensors often suffer from low sensitivity and long response-recovery time. In this work, with the assistance of sodium dodecyl benzene sulfonate (SDBS), sodium dodecyl sulfate(SDS), and lauryl amine (LA), the PANI films were prepared by interfacial synthesis to obtain the ordered polymer chains and applied to NH 3 sensors. At room temperature , the SDS-functionalized PANI film-based sensor shows a good response to NH 3 (5.4 for 40 ppm NH 3 ), the detection limit is 0.1 ppm, and the recovery time is 12 s, which is better than that similar base on PANI. The functionalized PANI film has an ordered structure to accelerate the electron transport rate and the protonation/deprotonation properties, which make the sensor have excellent gas sensing performance. In addition, the sensor has good reproducibility, moisture resistance , and long-term stability. This result provides important opinions for realizing polymer materials with high gas-sensing properties to NH 3 .
✓ 已验证
产品关联
DOI
高影响因子
Energies
·
2022
·Vol. 15
·期 4
·1354
·
IF 3.252
Shuai Zhang,Zhenhua Wu,Zekun Liu,Yongbo Lv,Zhiyu Hu
Photothermal conversion is an environmentally friendly process that harvests energy from the sun and has been attracting growing research interest in recent years. However, nanostructured strategies to improve light capture performance deserve further development, and the application of solar heating effects for clean energy needs to be explored. Herein, a multiscale nanomaterial was prepared by in situ polymerizing the polyaniline (PANI) nanoparticles into porous anodic aluminum oxide (AAO) membrane. As a result, the as-prepared PANI-AAO shows broadband solar absorption and provides a platform for efficient photothermal conversion. What is more, we introduced a typical thermoelectricity generator (TEG) with excellent output performance and combined it with PANI-AAO to prepare a solar thermoelectric generator (s-TEG). The s-TEG harvests solar energy and converts it into electricity, showing an outstanding power generation capability in outdoor conditions. Thus, the nanostructured broadband solar absorber and the integrated solar thermoelectric generator offer a promising candidate for a sustainable and green energy source in the future.Keywords:polyaniline nanoparticles;anodic aluminum oxide;solar absorber;thermoelectricity generator
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 11
·5312-5320
·
IF 3.925
Keping Wang,Mei Wu,Yixuan Liu,Ying Yang,Hu Li
Five-membered nitrogen heterocyclic pyrroles have extremely high physiological activity and are widely used in medicine, agriculture, materials chemistry, industry, and supramolecular chemistry. Developing a mild and eco-friendly way to synthesize functionalized pyrroles from biologically derived materials is desirable. In this study, biomass-derived 2,5-dimethylfuran can react with a series of aromatic amines to synthesize 2,5-dimethyl-N-arylpyrroles through acid-enabled ring-opening and Paal–Knorr condensation in one pot. Among the tested acid catalytic materials, a new magnetic biocarbon-based sulfonic acid solid catalyst (WK-SO3H) showed excellent catalytic performance in the synthesis of N-substituted pyrroles (up to ca. 90% yield) and was easy to separate and recover by an external magnetic field. The ring-opening of furan proved to be the rate-determining step of the above one-pot multi-step conversion process, and 2,5-hexanedione is a key intermediate for the cascade reaction, while the addition of water could significantly enhance the above-mentioned ring-opening reaction. Furthermore, multiple characterization methods (e.g., FT-IR, TGA, XRD, NH3-TPD, and XPS) confirmed that WK-SO3H has good stability in the aqueous reaction system.
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2022
·
IF 8.943
Wen Huang,Jie Zhou,Qian Hu,Bin Qiu,Mina Huang,Vignesh Murugadoss,Zhanhu Guo
The magnetite@polyaniline (Fe 3 O 4 @PANI) composites with different Fe 3 O 4 loadings were prepared, and their effect on methane production in anaerobic systems was investigated. The Fe 3 O 4 @PANI composite with a 40% loading of Fe 3 O 4 showed a better performance on accelerating methane production rate than other composites. The methane production rate was increased by 26.98% at the Fe 3 O 4 @PANI dosage of 0.6 g L −1 . The results of the contact angle and CLSM revealed that Fe 3 O 4 @PANI had a good bio-affinity and contact directly with bacteria and archaea. Then the mechanisms related to the enhancement of methane production by the composites were explored by the species annotation and enzyme activity . It showed that Fe 3 O 4 @PANI promoted the enrichment of DIET-related functional bacteria and archaea and improved the enzyme activity related to the acetoclastic methanogenic pathway.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FUEL
·
2022
·
IF 8.035
Junhong Ma,Zhizi Yao,Tuan K.A. Hoang,Yuemei Liu,Akang Sun
As a clean energy conversion device, fuel cell can greatly alleviate the environmental pollution problem. Developing cost-effective oxygen reduction reaction (ORR) catalysts with high performance is of great significance to improve the efficiency of fuel cells and promote its large-scale use. Here, we successfully fabricated an iron and nitrogen co-doped carbon–carbon composite (Fe-N-C B350 -900Z@C PANI ) by modifying a pre-synthesized iron and nitrogen co-doped biomass carbon (Fe-N-C B350 -900Z) with polyaniline derived carbon (C PANI ). The obtained Fe-N-C B350 -900Z@C PANI displays excellent ORR catalytic activity, as reflected by the positive onset potential of 0.13 V vs Hg/HgO and high limiting current density of 5.92 mA cm −2 , which significantly outperforms the benchmark Pt/C (0.07 V and 4.70 mA cm −2 , respectively). Meanwhile, it also presents remarkable catalytic stability and the great methanol tolerance. The excellent catalytic performance of Fe-N-C B350 -900Z@C PANI is attributed to the merits of the hierarchical porous structure and large specific surface area up to 955 m 2 g −1 formed by synergism of C B and C PANI , which effectively promotes the mass transfer and accessibility of active sites.
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR RAPID COMMUNICATIONS
·
2022
·Vol. 43
·期 18
·2100836
·
IF 5.006
Qingyin Li,Ying Cheng,Shumaila Razzaque,Zuolin Cao,Shijie Ren,Bien Tan
In this work, novel hypercrosslinked polymer-based hollow microporous organic capsules with a polyaniline (PANI)-modified shell (PANI@S-HMOCs) are prepared by in-situ polymerization of aniline in the porous structure of the sulfonated hollow microporous organic capsules (S-HMOCs). PANI@S-HMOC1, PANI@S-HMOC2, and PANI@S-HMOC3 are made by adjusting S-HMOCs and aniline weight ratios of 4:1 and 3:1, and 2:1, respectively. The characterizations of PANI@S-HMOCs demonstrate that electrostatic interaction between aniline and sulfonic acid groups plays an important role in encapsulating PANI in the pores of the shell. The content of PANI shows an evident effect on the porosity of PANI@S-HMOCs, and an appropriate polyaniline loading amount may increase the surface area. PANI@S-HMOC1 and PANI@S-HMOC2 have higher BET surface areas (529 and 503 m 2 g −1 ) than S-HMOCs (424 m 2 g −1 ), but PANI@S-HMOC3 has lower BET surface area (380 m 2 g −1 ). Based on the structural and textural features, PANI@S-HMOC2 shows good adsorption performance for Cr(VI) from aqueous media (156 mg g −1 , pH = 2, and 27 mg g −1 , pH = 7).
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TALANTA
·
2022
·
IF 6.556
Chonghui Zhu,Hua Xue,Hongran Zhao,Teng Fei,Sen Liu,Qidai Chen,Bingrong Gao,Tong Zhang
A flexible dual functional electrochemical sensor based on macroscopic polyaniline (PANI) film is reported. The PANI film is prepared by interfacial synthesis without any additional templates and surfactants, and is easily transferred from the water surface to any substrate. The surface of PANI film is flat and has a certain degree of crystallization. The PANI film exhibits good electrochemical properties, which is attributed to the order structure of PANI. The flexible sensor based on PANI film exhibits good electrochemical performances to pH and lactate. And the flexible PANI sensor has good reproducibility, selectivity and long-term stability. Meanwhile, the PANI sensor is also applied to detect the actual sample (such as food and human sweat), and the results are in accordance with the commercial pH meter, indicating the reliability of the PANI sensor.
✓ 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）