ACS Sustainable Chemistry & Engineering
·
2018
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IF 6.14
Lijun Yan,Di Li,Tingting Yan,Guorong Chen,Liyi Shi,Zhongxun An,Dengsong Zhang
Due to the wide application of carbon-based materials in supercapacitors, the concern of volumetric capacitance becomes increasingly important. In this work, the N,P,S-codoped hierarchically porous carbon spheres (N,P,S-HCS) have been rationally designed and originally fabricated using the silica colloids as hard templates, polyaniline as carbon and nitrogen sources, phytic acid as phosphorus sources, and ammonium persulfate as sulfur sources. Both high volumetric and gravimetric capacitance can be achieved. The as-prepared N,P,S-HCS shows the highest specific capacitance of 274 F g–1 and 219 F cm–3 at a current density of 0.5 A g–1, which reveals a superior performance. Moreover, the cycling ability of the N,P,S-HCS can be maintained over 95% to the initial capacitance at a high current density of 10 A g–1 for 10 000 charge–discharge cycles. This is mainly contributed to the uniform doping of N, P, and S as well as the hierarchically porous structure of the N,P,S-HCS. Finally, we assemble it into the all-solid-state symmetric supercapacitors with high energy and power densities of 3.4 W h L–1 with 804 W L–1, respectively. The N,P,S-codoped hierarchically porous carbon spheres with high density show both good volumetric and gravimetric capacitance, which make it a promising material for supercapacitors in practical applications. The present investigations may develop a new direction for the design of carbon materials for a good balance of both high gravimetric and volumetric capacitance.
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CHEMICAL ENGINEERING JOURNAL
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2021
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IF 13.273
Jing Wang,Zhong Yang,Jianyong Jiang,Chaoyong Deng,Kongjun Zhu
Flexible dielectric materials with benign energy storage performance are highly desirable for the miniaturization, portability and integration of modern electronics. However, the limited energy storage density seriously restricts their practical applications. Herein, multilayered composite films composed of the P(VDF-HFP) matrix and Nd doped BaTiO 3 nanofibers with various filling ratios, layer numbers and topological structures were systematically designed and constructed via the layer-by-layer non-equilibrium process. The 3-layered composite films (3.0 wt% filling ratio) with the pure P(VDF-HFP) layer adjacent to the electrodes revealed good mechanical behavior, greatly enhanced captured ions at interfacial regions and suppressed injected charges from electrodes, which facilitated the improvement of the breakdown strength and discharged energy density. And a maximum U e of 25.5 J/cm 3 with a E b of 719.9 MV/m was achieved, which was not only 1.4 times more than the pure P(VDF-HFP) via the same process, but also behaved better than counterparts with the similar filling ratios and was among the top U e values of related P(VDF-HFP)-based nanocomposites.
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Journal of Materials Chemistry C
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2022
·Vol. 10
·期 36
·13040-13046
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IF 8.067
Yi Huang,Jin Tan,Gang Gao,Jianmei Xu,Ling Zhao,Wei Zhou,Qing Wang,Shuoguo Yuan,Jian Sun
Currently, ultraviolet photodetectors attract extensive attention from people all over the world due to their applications in solar ultraviolet radiation detection, flame detection, ozone monitoring, missile tracking, and environmental monitoring. A heterojunction is an essential aspect for fulfilling the demand for high-performance self-powered ultraviolet photodetectors. However, it is still very challenging to achieve both good electrical property and transparency for p-type semiconductors and conductors especially at low preparation temperature. This work reports the fabrication of ultrathin, ultra-high-transparency and very smooth CuI films at room temperature by the copper film iodination method, whose figure of merit (FoM) far exceeds those of most of the typical p-type oxides. The obtained p-type CuI films (p-CuI) were fabricated on an n-type Si (n-Si) substrate to construct a heterojunction photodetector. The p-CuI/n-Si photodetector has excellent optoelectronic properties in self-powered mode, including a large responsivity and detectivity (123.3 mA W−1, 5.7 × 1012 Jones), and a fast response speed (rise/decay time of 90 μs/140 μs), which are overall better than those of all types of CuI-based self-powered photodetectors. In addition, the CuI film deposited on the flexible substrate was applied in a CuI photodetector with a metal–semiconductor–metal structure, exhibiting good optoelectronic properties and bending stability, which shows promising applications in transparent, flexible, wearable electronic and optoelectronic devices.
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ACS Applied Polymer Materials
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2025
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IF 4.7
Jingjing Gao,Yadong Wang,Jiaoyang Huang,Zongmin Zhu
In this work, an innovative MXene-based nanohybrid, denoted as MXene-PDS, is fabricated through the integration of MXene with P/N/S-functionalized organic oligomer via hydrogen bonding. The incorporation of low loadings of MXene-PDS imparts effective flame retardancy to polylactic acid (PLA) while maintaining its processing and mechanical properties. Under a loading of 3% MXene-PDS, PLA/3MXene-PDS attains the UL-94 V-0 rating and exhibits a limiting oxygen index (LOI) of 22.8%. The peak heat release rate (PHRR) is reduced by 12.5%. Additionally, mechanical properties present good enhancement, with a notable 36% improvement in impact performance. The significant reduction in viscosity of PLA/3MXene-PDS greatly improves the processing performance. This study proposes a method for preparing MXene-based nanomaterial with high flame retardancy, which can endow polymers with multiple performance characteristics by adding a single functional additive.
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高影响因子
FUEL
·
2025
·
IF 7.5
Dan Zhang,Maowei Luo,Xianming Zhu,Faisal Irshad,Hamzah A.S.M. Yaseen,Chao Mu,Yong Wang,Shengping Wang,Xinbin Ma
CO 2 hydrogenation to formate is a crucial process for achieving carbon neutrality. A biomass-derived N and P co-doped carbon-supported Pd catalyst (Pd/CNP) was fabricated. N and P co-doping could enhance the catalytic performance by modulating Pd electron cloud density (the Pd 0 /(Pd 2+ +Pd 0 ) ratio), promoting Pd dispersion, and increasing the content of pyrrole-N, which promoted the dissociation of H 2 and the adsorption and activation of CO 2 . Due to the strong interaction between Pd and the heteroatoms of N and P, the Pd/CNP catalyst exhibited the highest catalytic activity (TON = 1655) in samples with different doping and pyrolysis temperatures. Kinetic analysis showed that Pd/CNP reduced the activation energy of CO 2 hydrogenation to formate compared with that of Pd/C. The kinetic equation of Pd/CNP is R’= k·M NEt3-CO2 0.65 ·P H2 1.21 (NEt 3 refers to triethylamine), and NEt 3 -CO 2 is a better choice of carbon source for hydrogenation than bicarbonate and CO 2 , which is obviously different from that of Pd/C catalyst.
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TRIBOLOGY INTERNATIONAL
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2026
·
IF 7.6
Jiajia Cen,Shuangqi Li,Kai Chen,Dekun Zhang
Polyetheretherketone (PEEK) possesses excellent corrosion resistance, moderate friction properties, and high‑temperature stability. However, under severe operating conditions, its coefficient of friction (COF) and wear rate increase significantly, limiting broader application. In this work, P‑MoS₂ was synthesized in situ on a PEEK matrix using a hydrothermal method, while K‑BN‑OH was prepared via surface grafting with a coupling agent. Both fillers were then blended with a PEEK/PTFE matrix to produce a novel PEEK/PTFE/P‑MoS₂/K‑BN‑OH composite. Orthogonal experiments identified the optimal composition of PEEK/PTFE/P‑MoS₂, which exhibited the best overall performance. The effect of K‑BN‑OH content on the mechanical, thermal, and tribological properties of the composites was systematically studied. Tribological behavior under varying conditions was analyzed to elucidate wear mechanisms and filler synergy. Results show that the composite with 25% PTFE and 5% P‑MoS₂ achieved the most balanced performance: elastic modulus (1414.62 MPa), compressive strength (127.81 MPa), COF (0.108), and wear rate (1.81 ×10⁻⁶ mm³/N·h) decreased by 22.58%, 35.82%, 73.13%, and 59.78%, respectively, compared to pure PEEK, while creep strain (2.77%) increased by 95.62%. Further addition of 3% K‑BN‑OH enhanced mechanical and thermal properties: elastic modulus rose to 1520.13 MPa, compressive strength to 131.33 MPa, creep strain fell to 1.82%, and thermal conductivity reached 0.294 W/m·K. The average coefficient of friction(ACOF) declined to 0.094, though wear rate rose slightly to 2.26 × 10⁻⁶ mm³/N·h. Tribological tests revealed that wear rate increased with rotational speed, while ACOF showed a non‑monotonic trend, first decreasing and then increasing. With increasing load, both ACOF and wear rate initially decreased before rising, reaching minima at 20 N (0.077 and 2.09 ×10⁻⁶ mm³/N·h, respectively). Molecular dynamics simulations elucidated that PTFE formed a lubricating film through interfacial enrichment, while MoS₂ enhanced matrix ordering and promoted interfacial slip via π-π stacking and C-S bonding. In contrast, h-BN disrupted the synergistic lubrication network established between PTFE and MoS₂ due to its spatial blocking effect. This work systematically elucidates the synergistic mechanisms of fillers from the microscopic level to macroscopic performance, providing a theoretical basis for the design of high‑performance PEEK composites tailored to specific operating conditions.
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CHEMICAL RESEARCH IN TOXICOLOGY
·
2026
·
IF 4.1
Naijie Wei,Xiaowen Yan,Mingyue Yu,Rong Li,Zhixin Xiao,Shi Chen,Limin Yang,Qiuquan Wang,Qian Liu,Guibin Jiang
N-(1,3-Dimethylbutyl)-N’-phenyl-p-phenylenediamine Quinone (6PPDQ) not only causes acute mortality in salmon but also induces toxicities in other living organisms. The electrophilic quinone moiety in the 6PPDQ molecular structure can participate in binding to the cysteine residues that ubiquitously exist in protein nucleophiles, which are responsible for its toxicities. Out of the 82 6PPDQ-bonded proteins found in the human model cell line A549 on the sulfhydryl-reactive proteomics platform, which enables the precise identification of covalent binding protein targets of a pollutant, we discovered three 6PPDQ-bonded mitochondrial proteins─NDUS6, COX5B, and ATP5PB─that are involved in mitochondrial dysfunction for the first time. They impede the function of mitochondria, as witnessed by the decreased enzymatic activities of mitochondrial respiratory chain Complexes I (27.63%) and IV (23.11%), the decreased cellular ATP content (19.94%), and the reduced mitochondrial membrane potential (3.2-fold), as well as the elevated mitochondrial ROS level (2.2-fold) under the environmentally relevant 8.9 μg/L 6PPDQ exposure compared to the controls. Our findings provide experimental evidence for elucidating 6PPDQ’s toxicities at the molecular level, and the knowledge learned will enhance the public’s awareness of the adverse impacts of environmental pollution on health.
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DOI
PubMed
高影响因子
Materials Today
·
2026
·
IF 24.1
Zhongzheng Yao,He Zhu,Yu Lou,Fan Xue,Jingqian Huang,Hua Ji,Wei-Di Liu,Xindong Zhu,Sinan Liu,Jianrong Zeng,Yang Ren,Xun-Li Wang,Yang Lu,Si Lan
Metallic glasses (MGs), despite exhibiting superior electrochemical catalytic and sensing activity to crystalline solids, remain difficult to rationally design because the structural units that directly correlate to active sites are poorly resolved. Here, we address this challenge by showing that a small change in Ni content (±4 at%) in Ni-Mo-P-B MGs gives precise control of short‑range-ordered (SRO) polyhedral motifs and their medium‑range connections. Synchrotron X-ray analysis reveals that the Ni 64 Mo 16 P 16 B 4 (Ni 64 ) stabilizes ten-coordinated (Z10) bi-capped square archimedean antiprisms (BSAPs) as the dominant SRO polyhedral, whereas Ni 60 Mo 20 P 16 B 4 (Ni 60 ) and Ni 68 Mo 12 P 16 B 4 (Ni 68 ) are dominated by nine-coordinate (Z9) tricapped trigonal prisms (TTPs). Crucially, this engineered SRO dramatically enhances the electrochemical glucose sensing: Ni 64 delivers ultrahigh sensitivity, a wide linear range, and stable operation over seven days, whose performance is far superior to conventional crystalline probes. First-principles calculations reveal that only at a Ni/Mo ratio of 4 does short-range chemical ordering favor the highly symmetric Z10 BSAPs with two Mo atoms occupying the two polyhedral caps. These Mo‑capped Z10 clusters optimally modulate Mo-Ni electronic interactions, lowering the *OH adsorption barrier and boosting catalytic reactivity. A miniaturized glucose sensor was fabricated by integrated the MG with a screen-printed electrode, demonstrating the practical applicability. Notably, we found that the dominant polyhedra show homology to local building blocks of nearby crystalline phases, suggesting that amorphous structures inherit crystal-like motifs that govern both stability and properties. Our work establishes an atomic-scale structural engineering paradigm for MG design, bridging crystalline-amorphous structural homology with functional optimization, and deepening the understanding of structure–property correlations in MG systems.
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Nature Energy
·
2026
·
IF 70.1
Zhao Qiangqiang,Zhang Bingqian,Hui Wei,Gao Kun,Ji Hongpei,Sun Xiuhong,Feng Xiaopeng,Peng Cheng,Wang Kaiyu,Gao Caiyun,Zhang Chenyang,Wang Han,Zhang Qi,Su Zhenhuang,Wang Xiao,Wang Li,Pang Shuping,De Wolf Stefaan,Wang Kai
Incorporating two-dimensional (2D) perovskite phases at the interfaces of three-dimensional (3D) perovskite solar cells improves device performance. These 2D structures form in the bulk and at interfaces of the perovskite film by adding long-chain ammonium salts into the perovskite, but achieving them exclusively at the buried interface remains challenging. Here we sequentially graft thioglycolic acid and oleylamine onto SnO 2 nanoparticles. The strong chemical bond between thioglycolic acid and oleylamine ensures that cation exchange with formamidinium iodide, a perovskite precursor, occurs only during thermal annealing, creating a 2D/3D perovskite structure solely at the bottom interface. This localized 2D layer accelerates 3D phase formation, enhances perovskite crystallization and reduces defect concentration at the interface by over tenfold. The resulting solar cells achieve power conversion efficiencies of 26.19% (certified 26.04%, 0.09 cm 2 ), 23.44% (aperture area of 21.54 cm 2 , certified 22.68%) and 22.22% (aperture area of 64.80 cm 2 ), respectively.
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APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Wei Shen,Liang Qiao,Juan Ding,Yongming Sui
Promoting the intrinsic activity and accessibility of basal plane sites in transition metal dichalcogenides (TMDs) is an important way to optimize their catalytic performance for energy conversion and storage. Here, a simple liquid-phase phosphating selenization pyrolysis method is developed to prepare P and Se co-doped niobium disulfide (NbS 2 ) 3D nanosheets with active basal plane for efficient catalyzing hydrogen evolution reaction (HER). Experimental results indicate that the P and Se co-doped NbS 2 3D nanosheets exhibit significantly enhanced HER activity and stability compared to their undoped counterparts. It realizes 165 mV decreased overpotential at 10 mA cm −2 and a stable durability over 40 h continuous operation at 14 mA cm −2 without observable fading. Density functional theory (DFT) studies suggest that the P dopant is to activate the adjacent original inert Nb sites, where both S and Nb sites in P, Se co-doped NbS 2 monolayer can together act as the active sites for HER. Furthermore, the addition of selenium can stabilize the catalytic activity. Our work provides a promising approach and theoretical framework for improving the electrocatalytic HER performance of NbS 2 , and may have general guidelines for other transition metal disulfides.
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REACTIVE & FUNCTIONAL POLYMERS
·
2017
·
IF 3.151
Abdul Qadeer Dayo,Xin-man Cao,Wan-an Cai,Sha Song,Jun Wang,Abdeldjalil Zegaoui,Mehdi Derradji,Yi-le Xu,An-ran Wang,Wen-bin Liu,Lin-dan Gong
The benzophenone-center bisphenol-A containing phthalonitrile monomer (BBaph) was successfully produced by a nucleophilic substitution reaction of 4,4′-difluorobenzophenone with 4-nitrophthalonitrile and bisphenol-A in the presence of potassium carbonate . The chemical structure of the synthesized monomer was confirmed by 1 H nuclear magnetic resonance ( 1 H NMR), 13 C NMR, and Fourier transform infrared spectroscopy (FTIR). The curing study of monomer was evaluated by the FTIR and DSC curves. The poly(BBaph) was subjected to gamma-ray irradiation with 100 kGy dose of 60 Co gamma radiation. The variation in chemical structure, mechanical, thermomechanical and thermal properties of poly(BBaph) was evaluated by FTIR, flexural, dynamic mechanical analysis (DMA), and thermogravimetric analysis (TGA), respectively. All results confirmed very minute deviation in the estimated properties before and after radiation. The BBaph monomer was blended with typical mono-functional benzoxazine ( P-a ) in different weight ratios. The DSC , DMA, and TGA tests were performed to study the properties of copolymers . The high glass transition temperature (164–227 °C), and stiffness values (2.72–3.03 GPa) was observed for the copolymers . The thermal stability was also improved after the loading of BBaph in P-a , recorded values were in the range of 367–408 °C, and 46.1–58.7% for 5% weight loss temperature and char yield at 800 °C, respectively.
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2018
·Vol. 136
·期 3
·46984
·
IF 1.901
Xiaojuan Liu,Fengjing Wu,Chaktong Au,Qi Tao,Mingyu Pi,Wenhui Zhang
Molecularly imprinted polymer (MIP) for selective extraction of p -hydroxybenzoic acid ( p -HB) was synthesized by suspension polymerization using p -HB as template, 4-vinyl pyridine as functional monomer and ethylene glycol dimethacrylate as crosslinker. As characterized by scanning electron microscopy, the MIP particles are spherical, with size ranging from 1 to 8 μm. Compared with the non-imprinted polymer (NIP), the MIP shows higher binding capacity toward p -HB: maximum binding capacity for p -HB being 8.07 μmol g −1 over MIP and 3.88 μmol g −1 over NIP. The adsorption of p -HB on MIP follows the Freundlich model and displays pseudo-second-order kinetics. The results of selective and competitive binding experiments confirm that the molecularly imprinted sites have excellent recognition ability toward p -HB. The results reveal that the MIP is a promising adsorbent for selective extraction of p -HB from water samples. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 46984.
研究领域:
环境科学
·
分析化学
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高分子材料
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污染物去除
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分子识别
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危险品化学品经营许可证（带存储）