SENSORS AND ACTUATORS B-CHEMICAL
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2023
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IF 8.4
Yu Xie,Jie-Hao Lin,Li-Yang Chen,Lei Feng,Zhi-Min Chen,Jia-Xing Zheng,Sai-Nan Qin,Guang-Wei Li,Kalle Salminen,Jian-Jun Sun
Effective drugged driving screening by the roadside requires simple-to-use sensing platforms that allow accurate measurement of drugs from biofluids. Achieving this goal is of vital importance to prevent and control the incidence of drug abuse, traffic accidents and crime. Given this, we designed a rapid, sensitive and reagentless electrochemical aptamer-based (EAB) sensor to detect ketamine. This platform produced nanomolar detection accuracy and reliable results were obtained within 30 s. To design a sensitive platform, circular dichroism (CD) was used to screen the aptamer which underwent the largest binding-induced conformational change. In addition, kinetic differential measurement (KDM) was utilized to improve the signal gain of the EAB sensor. The constructed sensing platform achieved sensitive and specific detection of ketamine in 50 % saliva and undiluted urine with detection limits as low as 10 nM, which was much lower than the physiological detection threshold. Hence the present EAB sensor is expected to be applied in the preliminary drugged driving screening in the real world.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Xuliang Lin,Lijing Xue,Bowen Liu,Xueqing Qiu,Jianglin Liu,Xiaofei Wang,Yi Qi,Yanlin Qin
The development of highly active and stable earth-rich electrocatalysts remains a major challenge to release the reliance on noble metal catalysts in sustainable (electro)chemical processes. In this work, metal sulfides encapsulated with S/N co-doped carbon were synthesized with a one-step pyrolysis strategy, where S was introduced during the self-assembly process of sodium lignosulfonate. Due to the precise coordination of Ni and Co ions with lignosulfonate, an intense-interacted Co 9 S 8 –Ni 3 S 2 heterojunction was formed inside the carbon shell, causing the redistribution of electrons. An overpotential as low as 200 mV was obtained over Co 9 S 8 –Ni 3 S 2 @SNC to reach a current density of 10 mA cm −2 . Only a slight increase of 14.4 mV was observed in a 50 h chronoamperometric stability test. Density functional theory (DFT) calculations showed that Co 9 S 8 –Ni 3 S 2 heterojunctions encapsulated with S/N co-doped carbon can optimize the electronic structure, lower the reaction energy barrier, and improve the OER reaction activity. This work provides a novel strategy for constructing highly efficient and sustainable metal sulfide heterojunction catalysts with the assistance of lignosulfonate biomass.
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DOI
PubMed
高影响因子
BIOMASS & BIOENERGY
·
2021
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IF 5.061
Jingyue Wang,Yuelong Xu,Meifang Yan,Bin Ren,Xiaoxi Dong,Junfeng Miao,Lihui Zhang,Xinqiang Zhao,Zhenfa Liu
Porous biomass-carbon materials for supercapacitor applications have recently attracted attention. Chitin , which has abundant amides and hydroxyl groups, was used as an ideal precursor for carbon in this work. The chitin was treated with a one-step method to produce a heteroatom-loaded porous carbon material, and its electrochemical properties were significantly improved through the introduction of loaded elements. A mixture of chitin, zinc chloride , and heteroatoms was carbonized to obtain heteroatoms (N and S) and the bimetallic sulfide loaded hierarchical porous carbon. Then, the porous carbon with S, N, Zn, and Fe heteroatoms loading was used to prepare a supercapacitor with a specific capacitance of 277.4 F g −1 at 1 A g −1 . In addition, the supercapacitor had a specific capacitance retention rate of 90% at 5 A g −1 after 10,000 cycles. Therefore, hierarchical porous carbon materials loaded with heteroatoms and bimetallic sulfide were prepared by carbonization activation with chitin as the precursor. The resulting supercapacitor showed that the as-prepared porous biomass materials possessed ideal charging-discharging performance. Moreover, this work provides strategies for obtaining metal sulfides and heteroatom co-loading of carbon materials with excellent properties using a simple and efficient one-step method for renewable energy storage device applications.
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
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IF 4.539
Yang Chen,Huijing Cui,Mao Wang,Xudong Yang,Shujie Pang
Cr(VI) is a toxic heavy metal, which is not readily decomposed and ingested by bacteria. Therefore, there is an urgent need for a sensing method with high selectivity and high sensitivity to detect Cr(VI) in other widely distributed metal ions . Here, a fluorescent probe based on carbon dots (CDs) was developed, with the characteristics of low cost, low environmental impact, high stability, and good water solubility. Although many sensors have been reported for the detection of Cr(VI), most of them are based on the quenching fluorescence method , whereas the one reported here is based on fluorescence enhancement, for which o-phenylenediamine and dl -Thioctic acid were used as raw materials. The transmission electron microscopy , Fourier infrared spectroscopy , X-ray photoelectron spectroscopy, X-ray diffraction, and ultraviolet-visible spectroscopy measurements showed that Cr(VI) can significantly enhance the fluorescence of the probe compared to previous sensors, as the obtained CDs have excellent fluorescence properties (quantum yield up to 21.82%) and high light stability. The detection limit of the probe for Cr(VI) is as low as 0.64 μM, indicating that the developed probe can detect Cr(VI) quickly, sensitively, and selectively, and has broad application prospects in environmental analysis applications. To facilitate rapid detection of Cr(VI), the CDs were also incorporated into a fluorescent composite film suitable for visual inspection.
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高影响因子
ELECTROCHIMICA ACTA
·
2021
·
IF 6.901
Hongcheng Gao,Shihao Miao,Mengqin Shi,Xiaoxia Mao,Xiaojing Zhu
Low redox kinetics and shuttle effect of polysulfides (PSs) is a grand challenge for practical applications of lithium-sulfur (Li-S) batteries. Herein, cobalt (Co) nanoparticles embedded inside nitrogen (N)-doped hierarchical porous carbon (MgCo-HC) are prepared via one-pot approach. As a result, MgCo-HC unique structure with the large surface area and Co, N-doping is proposed for the strong physical/chemical adsorption of PSs, high conductivity, fast redox reaction kinetics and the high S utilization. The resultant S cathode delivers a high specific capacity of 1086.4 mA h/g at 0.1 C, low-capacity fading rate of 0.041% per cycle over 880 cycles at 2 C, and superior rate performance up to 5 C. More intriguingly, the S/MgCo-HC electrode delivers reversible area capacities of 5.1 and 5.5 mA h/cm 2 at 0.1 C under high S loading and learn electrolyte condition, respectively. Furthermore, the assembled Li-S soft-packaged battery is also readily assembled, which highlights stable electrochemical properties under folding conditions. This work provides a simple strategy to design advanced S hosts for the practical application of Li-S batteries with excellent electrochemical performance.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2021
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IF 5.316
Long Huang,Linzhi Zuo,Tao Yu,Haoquan Wang,Zeyang He,Hu Zhou,Shichuan Su,Ting Bian
Substituting costly Pt-based oxygen reduction reaction (ORR) catalysts with highly active and stable non-precious metal catalysts is a great challenge in zinc-air batteries. Herein, we fabricated Co/Co 9 S 8 nanoparticles decorated nitrogen, sulfur dual-doped carbon leaves (Co/Co 9 S 8 -NCL) with outstanding ORR performance by pyrolysis of dithiooxamide (DTO) molecule modified two-dimensional (2D) leaf-shaped zeolitic imidazolate framework (ZIF-L). The functionality of DTO simultaneously optimizes 2D nanostructure and component (S doping) by the confinement effect due to the coordination interaction between S atoms of DTO and Co 2+ in ZIF-L. Benefiting from the synergistic effect between Co-N x sites and Co/Co 9 S 8 species coupled with unique two-dimensional N, S-codoped carbon leaves, the resulting Co/Co 9 S 8 -NCL-30 exhibits a remarkable ORR activity with a half-wave potential of 0.852 V comparable to Pt/C (0.843 V) and outstanding long-term stability. Impressively, the Zn-air battery with Co/Co 9 S 8 -NCL-30 achieves high power density of 112 mW cm −2 and specific capacity of 799 mAh g −1 Zn . This work will present a new pathway to prepare highly active and durable 2D transition metal-based carbon nanomaterials in zinc-air batteries.
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高影响因子
NEW JOURNAL OF CHEMISTRY
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2021
·Vol. 46
·期 5
·2309-2319
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IF 3.591
Yichen Jiang,Yifei Zhao,Lin Liang,Xiao Zhang,Jianmin Sun
Imidazolium-based ionic liquid 1,n-dialkyl-3,3′-bis-1-vinyl imidazolium dibromide (n = 2, 4 and 6) monomers were synthesized and further polymerized inside a MIL-101 framework to afford poly(ionic liquid)@MIL-101 composites (PIL-n@MIL-101, n = 2, 4 and 6). Furthermore, the ratio of poly(ionic liquid) to MIL-101 affected the structures of the composites. Different molar ratios of PIL-4/MIL-101 were prepared and characterized using elemental analysis, powder X-ray diffractometry, thermogravimetric measurements, N2 adsorption/desorption and CO2 adsorption measurements. Thanks to the high Brunauer–Emmett–Teller surface area and porous structure of MIL-101 together with the incorporated poly(ionic liquid), PIL-4@MIL-101-0.5 exhibited good CO2 uptake capacity (42.7 cm3 g−1 at 100 kPa, 273 K). Additionally, due to the synergistic effects of the unsaturated coordinated Lewis acidic Cr sites and nucleophilic Br− in the PIL-4@MIL-101 composites, the developed composites exhibited efficient catalytic performance in the CO2 and epichlorohydrin cycloaddition reaction, with 99.6% conversion obtained at 90 °C and 1.0 MPa for 2.5 h without an additional cocatalyst or solvent. The composites also showed easy separation and better recycling stability. Combining the advantages of facile synthesis, excellent performance for CO2 adsorption and conversion, good thermal stability and recycling stabilities, the poly(ionic liquid)@MIL-101 composites are appealing candidates for application in CO2 capture and utilization.
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高影响因子
Sustainable Energy & Fuels
·
2023
·Vol. 8
·期 3
·604-609
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IF 5.6
Jinhui Zhang,Chuanhe Ma,Haixuan Gao,Jinchun Jiang,Hailong Wang
An over-thick MoSe2 layer and numerous voids at the absorbing layer inside and backside lead to a relatively low Jsc and PCE of CZTSSe solar cells. In previous studies, MoO2 and MoO3 sacrificial layers have been commonly used to eliminate those voids and reduce the thickness of MoSe2 layers. However, there is still no clarity about which one is more effective. In this work, we prepared MoO2 and MoO3 sacrificial layers on the surface of Mo-coated SLG substrates by air annealing and ammonia (NH3·H2O) etching, respectively. J–V testing shows that both MoO2 and MoO3 can effectively improve the Jsc and PCE of CZTSSe solar cells, wherein MoO3 is more effective. Comparative analysis shows that the electrical mechanism of Jsc and PCE improvement lies in the significant reduction of device series resistance (Rs). SEM images and XRD pattern results indicate that the reason for Rs decreasing is void elimination and MoSe2 layer thickness reduction from 600 nm to 270 nm after applying MoO3. With the aid of the MoO3 sacrificial layer, the PCE of the CZTSSe device increases from 7.51% to 9.58% (total area 0.21 cm2) without the MgF2 anti-reflection layer.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2026
·
IF 6.7
Ming-Dan Yao,Qi Liu,Zhe Feng,Ji Cai-Rang,Zi-Long Yang,Yu-long Xie
The heterostructure enhances the stability and activity of the catalyst. • The interfacial electron transfer and slight reconstruction synergistically enhance the catalyst performance. • d-p orbital hybridization enhances the metal synergy. • The formation of the heterojunction alters the rate-determining step of the reaction. This paper reports on a Ni 3 S 2 /NiFe-LDH heterostructure grown in-situ on a nickel foam substrate via a one-step hydrothermal method, and systematically evaluates its oxygen evolution reaction performance. This catalyst requires an overpotential of only 284 mV to reach a current density of 300 mA·cm −2 . Benefiting from the construction of the heterointerface, following 100 h galvanostatic electrolysis at 50 mA cm −2 , merely a 12 mV increase in overpotential was detected at 300 mA cm −2 in post-stability LSV tests. In-depth mechanistic analysis reveals that the introduction of Ni 3 S 2 triggers interfacial electronic reconstruction. Spin polarization and orbital hybridization collectively optimize the density of states of NiFe-LDH, accelerate charge transfer, and enhances its intrinsic catalytic kinetics. This work not only develops a high-performance oxygen evolution catalyst, but also provides a rational strategy for modulating electronic structures via heterointerface engineering to enhance electrocatalytic performance. Download: Download high-res image (328KB) Download: Download full-size image
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高影响因子
ENERGY & FUELS
·
2023
·
IF 5.3
Lishi Bao,Chenguang Bao,Qifeng Sun,Jiaxin Zou,Hongbo Liu,HuiChen
Transition metal-doped carbon catalysts are expected to replace noble metal catalysts for the oxygen reduction reaction (ORR). In this paper, a ZIF layer consisting of Co and Cu was formed on the surface of silica nanospheres, and then heteroatom S was added to obtain a porous carbon material catalyst (Co/Cu-NSC) after pyrolysis. Due to its porous structure, the Co/Cu-NSC catalyst has a large number of active sites with excellent ORR catalytic performance. The limiting current density of the Co/Cu-NSC catalyst is as high as 6.25 mA cm–2 (5.91 mA cm–2 of commercial Pt/C catalyst). The half-wave potential and onset potential of the Co/Cu-NSC catalyst are comparable to those of commercial Pt/C catalyst, and it has better stability and methanol resistance than commercial Pt/C catalyst. In addition, the Co/Cu-NSC catalyst affords excellent performance in a zinc–air battery, achieving high power density (145 mW cm–2) and continuous charge–discharge time (177 h) at 5 mA cm–2.
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高影响因子
Environmental Science-Nano
·
2023
·
IF 7.3
Jinli Qiu,Huifang Chan,Wenting Zheng,Yao Feng,Fuqiang Liu
The design of metal–organic framework-derived metal oxides/sulfides is an effective approach for water remediation. A series of Fe–Ce composites (Fe–Ce–S–N) with cluster-like morphology were prepared with prussian blue analogue (PBA) as the precursor in a hydrothermal process. S doping promoted the conversion of Fe(III) to Fe(II), which greatly improved the performance of the Fenton-like reaction. The optimized Fe–Ce–S–N catalyst exhibited superior catalytic activity towards sulfamethoxazole (SMZ) degradation (18.63 mgSMZ gcat−1 min−1), showing the largest k value (0.1862 min−1), which was 2.1 and 8.1 times higher than that of Fe–Ce–S–H and Fe–Ce–N, respectively. Moreover, the Fe–Ce–S–N catalyst displayed a remarkable reusability, stability and adaptability in Fenton-like systems. Overall, this work provides new insights into extending novel PBA-derived catalysts to significantly improve heterogeneous Fenton-like performances.
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高影响因子
EUROPEAN POLYMER JOURNAL
·
2023
·
IF 6
Pengyun Zhao,Lingxin Meng,Jingmei Xu,Jinxuan Lei,Kuirong Feng,Tian Lan,Zhe Wang
In this study, composite proton exchange membranes (PEMs) based on functional graphene oxide (GO) and carboxyl-containing sulfonated poly(arylene ether ketone sulfone)s organic matrix (C-SPAEKS) were synthesized. Modified GO nanosheets (ATP@GO) was synthesized by using GO as a template, then chemically bonded adenosine triphosphate (ATP) on GO nanosheets. Modified ATP@GO and composite membranes were characterized by FT-IR, 1 H NMR, SEM and XPS. These composite membranes exhibit outstanding proton conductivity, thermal stability and dimensional stability. Compared to C-SPAEKS membranes (32.3 mS cm −1 at 20 °C, 108.9 mS cm −1 at 90 °C), C-SPAEKS/ATP@GO-1 membrane showed enhanced proton conductivity (50.0 mS cm −1 at 20 °C, 184.8 mS cm −1 at 90 °C). Meanwhile, the open circuit voltage (OCV) and power density of C-SPAEKS/ATP@GO-1 were 0.9941 V and 466.33 mW/cm 2 , respectively, which were much higher than the C-SPAEKS (0.8973 V, 190.72 mW/cm 2 ), showing good fuel cell performance. The results show that functionalized GO could make an important contribution to proton conduction and improvement of comprehensive performance in composite membrane, which indicate that these composite membranes have the potential to be used as PEMs.
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高影响因子
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