JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
·
IF 9.4
Yongjie Jiang,Anqi Li,Qichang Pan,Shunchao Wang,Man Zhang,Sijiang Hu,Yahao Li,Hongqiang Wang,Qingyu Li,Fenghua Zheng
Iron sulfides have shown great potential as anode materials for sodium-ion batteries (SIBs) because of their high sodium storage capacity and low cost. Nevertheless, iron sulfides generally exhibit unsatisfied electrochemical performance induced by sluggish electron/ion transfer and severe pulverization upon the sodiation/desodiation process. Herein, we constructed a yolk-shell FeS@NC nanosphere with an N-doped carbon shell and FeS particle core via a simple hydrothermal method, followed by in-situ polymerization and vulcanization. The FeS particles intimately coupled with N-doped carbon can accelerate the electron transfer, avoid severe volume expansion, and maintain structural stability upon repeated sodiation/desodiation process. Furthermore, the small particle size of FeS can shorten ion-diffusion distance and facilitate ion transportation. Therefore, the FeS@NC nanosphere shows excellent cycling performance and superior rate capability that it can deliver a high capacity of 520.1 mAh g −1 over 800 cycles at 2.0 A g −1 and a remarkable capacity of 625.9 mAh g −1 at 10.0 A g −1 .
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高影响因子
Battery Energy
·
2024
·Vol. 3
·期 6
·20240035
·
IF 9
Yujia Xue,Jinghao Huo,Xin Wang,Yuzhen Zhao
Over the past decade, the extensive consumption of finite energy resources has caused severe environmental pollution. Meanwhile, the promotion of renewable energy sources is limited by their intermittent and regional nature. Thus, developing effective energy storage and conversion technologies and devices holds considerable importance. Zinc-ion hybrid supercapacitors (ZISCs) merge the beneficial aspects of both supercapacitors and batteries, rendering them an exceptionally promising energy storage method. As an important cathode material for ZISCs, the tunnel structure MnO 2 has poor conductivity and structural stability. Herein, the Zn x MnO 2 /PPy (ZMOP) electrode materials are prepared by hydrothermal method. Doping with Zn 2+ is used to enhance its structural stability, while adding polypyrrole to improve its conductivity. Therefore, the fabricated ZMOP cathode presents superb specific capacity (0.1 A g −1 , 156.4 mAh g −1 ) and remarkable cycle performance (82.6%, 5000 cycles, 0.2 A g −1 ). Furthermore, the assembled aqueous ZISCs with ZMOP cathode and PPy-derived porous carbon nanotube anode obtain a superb capacity of 109 F g −1 at 0.1 A g −1 . Meanwhile, at a power density of 867 W kg −1 , the corresponding energy density can achieve 20 Wh kg −1 . And over 5000 cycles at 0.2 A g −1 , the cycle performance of ZISCs maintains at 86.4%, which exhibits excellent cycle stability. This suggests that ZMOP nanowires are potential cathode materials for superior-performance aqueous ZISCs.
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POLYHEDRON
·
2024
·
IF 2.4
Rong Chen,Yuting Zhu,Na Song,Huixue Fang,Yan Ma,Lengfeng Wu,Shengjun Liu,Kui Zhang
Photosensitizers are highly desirable due to their many applications. Photosensitizers play an important role in photocatalysis. However, conventional photosensitizers are not conducive to recycling. The proximity of the photosensitizing dye to the corresponding carrier is important in dye sensitization and in enhancing photocatalytic performance; however, most photosensitizers exhibit weak interactions with carriers. The transition of the photosensitizer from the molecule to the crystalline state enhances the stability of the photocatalyst and improves photocatalytic performance. In this study, MOF (metal–organic framework) @Zn-TCPP(M) hybrids were synthesized. The H 2 yield of NM@Zn-T(Cu)-3 was 620.56 µmol g −1 (4 h), which was 10.64 times and 3.80 times greater than Zn-TCPP(Cu) and NH 2 -MIL-125, respectively. The results revealed that the modification of the MOF with Zn-TCPP(M) altered the charge-transfer capability, and thus improved photocatalytic activity. This study reports a novel strategy to enhance the photocatalytic performance of Metal-Organic Framework using Zn-TCPP(M).
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ADVANCED MATERIALS
·
2025
·
IF 26.8
Linlin Yang,Yizhe Dong,Dong Zhao,Xiangyu Li,Jiajie He,Tin Pou Lai,Enze Zhou,Toshiyuki Ueki,Yixing Li,Xiangying Meng,Liyun Zhang,Bin Yu,Wenli Pei,Yongqiang Fan,Tingyue Gu,Fuhui Wang,Dake Xu
Biohydrogen production offers a promising pathway for developing clean and renewable energy sources. However, its practical application has been hindered by low efficiency and sustainability issues. Here, it is introduced an energy-efficient and output-sustainable hybrid system (LPBC/CH system) for biohydrogen production by integrating self-assembling intermetallic ( L 1 0 ) FePt@polypyrrole nanobiocatalysts (LPBC) with Clostridium pasteurianum . The engineered LPBC, characterized by optimal atomic structures and defined electronic properties, demonstrates robust transcriptional enhancement efficiency and biocatalytic capability, leading to an ≈103% increase in hydrogen production rate and a 57% enhancement in hydrogen yield to the bare C. pasteurianum system. Within the LPBC/CH system, the nanobiocatalysts target NADH and [FeFe] hydrogenase, triggering efficient tandem biocatalytic reactions for proton reduction. Notably, the LPBC achieves sustained performance for at least 30 days – a benchmark unmatched by other reported nanobiocatalysts. This study not only advances the frontiers of biohydrogen production but also establishes a universal framework for constructing hybrid systems with superior efficiency and sustainability.
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DESALINATION
·
2024
·
IF 8.3
Xin Zhong,Hexiang Lan,Yibing Chen,Youquan Li,Zijun Zhang,Jun Xiong,Linghui Yu,Ming Li
Interfacial solar steam generation (ISSG) has drawn considerable interest as an emerging technology for seawater desalination. However, designing simple and cost-effective solar evaporators with high salt resistance and impressive evaporation rates remains a significant challenge. Inspired by tree rings, a three-dimensional (3D) solar evaporator (PPy-RWCF) was fabricated by rolling polypyrrole-decorated waste cotton fabric (PPy-WCF) into a cylinder. The synergistic effect of polypyrrole (PPy) and interstices within the waste cotton fabric (WCF) allows the PPy-RWCF to absorb around 99.00 % of sunlight. The PPy-RWCF, with an exposure height of 3 cm, achieves an excellent evaporation rate of 2.36 kg m −2 h −1 under 1-solar intensity. Besides, the vertical water channels within PPy-RWCF allow rapid solution transport, enabling it to withstand 20 wt% brine with an evaporation rate of 2.05 kg m −2 h −1 . Prolonged outdoor desalination testing has demonstrated that a 1 m 2 PPy-RWCF can generate approximately 10 kg of freshwater daily. This study proposes a sustainable approach to the development of solar evaporators utilizing WCF for desalination of high-salinity water.
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ANALYTICA CHIMICA ACTA
·
2024
·
IF 5.7
Yongling Du,Min Guo,Yan Chen,Xiaohui Mo,Junlei Cao,Fangdi Hu
Cortisol, a corticosteroid hormone as a primary stress hormone response to internal and external stress, has been regarded as a gold standard reliable biomarker to evaluate human mental stress. The double enzymes strategy, using nanozyme and enzyme amplifying the electrochemical signal, has been widely used to improve the performance of electrochemical biosensors. An ultra-sensitive electrochemical cortisol sensor based on Au single-atom nanozymes had been fabricated through HRP labeled anti-cortisol antibody binding with Au by Au-S bond. Based on the high catalytic activity of Au single-atom nanozymes and the high selectivity of HRP-labeled anti-cortisol antibodies, the cortisol electrochemical sensor-based Au single-atom nanozymes had an excellent response to cortisol, such as high electrochemical activity, high sensitivity, high selectivity, and wide linear range (0.15–300 ng.mL −1 ) and low detection (0.48 pg.mL −1 ) through the four-parameter logistic model with 95% confidence. The electrochemical cortisol sensor was used to determine the cortisol concentration of human saliva at different times.
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MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 7
·1-13
·
IF 5.3
Wang Yuefan,Chen Yinzhi,Zhou Yuhe,Wang Yilin,Wu Yingjie,Xie Yixi,Zhao Pengcheng,Hu Xiayi,Fei Junjie
Rutin extracted from natural plants has important medical value, so developing accurate and sensitive quantitative detection methods is one of the most important tasks. In this work, HKUST-1@GN/MoO 3 -Ppy NWs were utilized to develop a high-performance rutin electrochemical sensor in virtue of its high conductivity and electrocatalytic activity. The morphology, crystal structure, and chemical element composition of the fabricated sensor composites were characterized by SEM, TEM, XPS, and XRD. Electrochemical techniques including EIS, CV, and DPV were used to investigate the electrocatalytic properties of the prepared materials. The electrochemical test conditions were optimized to achieve efficient detection of rutin. The 2-electron 2-proton mechanism, consisting of several rapid and sequential phases, is postulated to occur during rutin oxidation. The results show that HKUST-1@GN/MoO 3 -Ppy NWs have the characteristics of large specific surface area, excellent conductivity, and outstanding electrocatalytic ability. There is a significant linear relationship between rutin concentration and the oxidation peak current of DPV. The linear range is 0.50–2000 nM, and the limit of detection is 0.27 nM (S/N = 3). In addition, the prepared electrode has been confirmed to be useful for rutin analysis in orange juice. Graphical Abstract
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Yudong Zhang,Yuan He,Jun Li,Yang Xu,Yang Yang,Yao Ge,Xun Zhu,Qiang Liao
Optimizing non-noble catalysts for the oxygen reduction reaction (ORR) is crucial for advancing energy storage and conversion technologies. This study investigates the influence of iron valence states and nitrogen precursor contents on the physicochemical properties and electrochemical performance of lignin-based Fe–N–C catalysts. Catalysts are synthesized using different valence iron sources and varying pyrrole contents. The results reveal that iron(II) doping increases microporosity and specific surface area, while iron(III) doping enhances mesoporous and iron contents of the carbon materials. XPS and Raman spectroscopy confirm the successful incorporation of Fe–Nx active sites in the as-prepared LFeIIIPx catalysts. Electrochemical tests demonstrate that LFeIIIP10 exhibits the highest ORR activity, surpassing commercial Pt/C in half-wave potential (E1/2) and limiting current density (JL). The direct formate fuel cell (DFFC) with an LFeIIIP10 air cathode achieves a maximum power density of 24.7 mW cm–2, 32% higher than that with a Pt/C cathode. This study highlights the critical role of tailoring iron valence states and nitrogen levels to develop high ORR performance, cost-effective Fe–N–C catalysts, providing valuable insights for the future design of non-noble metal catalysts in energy applications.
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DESALINATION
·
2024
·
IF 8.3
Ting Shu,Yuliang Zhang,Xiahui Liu,Zhuo Liu,Ying Qin,Fei Wang,Xueting Chang,Dongsheng Wang,Lihua Dong,Xiaobo Chen,Xijia Yin,Zecheng Qian
Solar interfacial evaporation technology is an effective and sustainable method for seawater desalination. It is crucial to achieve high photothermal conversion efficiency, rapid evaporation rate, and long-term stability. In this study, a vertically aligned porous aerogel evaporator is prepared using sodium alginate as the substrate material and graphene oxide (GO) and polypyrrole (PPy) as the photothermal materials through a directional freezing technology. The polypyrrole@graphene oxide-sodium alginate evaporator exhibits a high solar photothermal conversion efficiency as high as 98.6 % and an evaporation rate of up to 4.66 kg·m −2 ·h −1 under 1 sun. During the 144-hour desalination, the evaporator transports brine for evaporation in the daytime and removes salt residue from the evaporator surface at night. It has demonstrated a self-cleaning behavior and restored its desalination stability. Thus, this aerogel evaporator with a high evaporation rate and stable salt resistance shows great potential for practical applications in solar thermal conversion and seawater desalination.
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JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Kaixiang Ji,Peilin Wang,Yameng Li,Qiang Ma,Xingguang Su
Phthalate esters, particularly di(2-ethylhexyl) phthalate (DEHP), are widely used plasticizers found in various consumer products, posing significant environmental and health risks due to their endocrine-disrupting effects. In this study, a novel enzyme-free intra-capacitive biofuel cell self-powered sensor (ICBFC-SPS) was developed. The ICBFC-SPS integrated a ternary heterostructure-based capacitive anode and a cathode with a sensing interface into a single-chamber electrolytic cell. The ternary heterostructure based on Ti 3 C 2 T x MXene with ultra-small Au NPs and polypyrrole (PPy) NPs was prepared to provide the efficient glucose oxidation and robust electron production. Furthermore, the charge storage capacity was significantly enhanced through a synergistic combination of the double-layer capacitor mechanism of Ti 3 C 2 T x and the pseudocapacitive behavior of PPy. Additionally, the intercalation of PPy NPs expanded the interlayer spacing, promoting electrolyte ion diffusion and charge transfer. The ICBFC-SPS demonstrated exceptional sensitivity with a linear detection range from 0.05 to 100000 ng/L and a detection limit of 9.51 pg/L for the sensitive and selective detection of DEHP in complex environmental and biological samples. The ICBFC-SPS addresses the limitations of traditional methods by providing a self-powered, highly sensitive, and portable platform for rapid, on-site DEHP detection. This work underscores the potential of self-powered sensors as transformative tools for real-time environmental monitoring and public health protection.
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MICROCHIMICA ACTA
·
2024
·Vol. 192
·期 1
·1-14
·
IF 5.3
Wang Yilin,Zhao Zixia,Wang Yuefan,Liu Zhifang,Chen Leyao,Qi Jin,Xie Yixi,Zhao Pengcheng,Fei Junjie
GO/Co-MOF/PPy-350 (GPC-350) was synthesized by in situ growth of ultrafine Co-MOF on graphene oxide (GO), followed by encapsulation with polypyrrole (PPy) and calcination at 350.0℃. Meanwhile, MoS 2 -MWCNTs (MoS 2 -CNTs) were produced via the in situ synthesis of MoS 2 within multi-walled carbon nanotubes (MWCNTs). The electrochemically superior GPC-350/MoS 2 -CNTs nanocomposite was then achieved by combining GPC-350 with MoS 2 -CNTs. The polypyrrole encapsulation serves to protect the ultrafine Co-MOF, preventing its degradation during the calcination process. The linear detection range of the GPC-350/MoS 2 -CNTs/GCE sensor for the determination of catechin (CA) in phosphate buffered saline (PBS) was from 5.0 to 1800.0 nM with a limit of detection of 1.78 nM. In addition, the materials were characterized using SEM, EDX, TEM, XRD, EIS, XPS, FTIR, and Raman. These results indicate that the synthesis of GPC-350/MoS 2 -CNTs nanocomposites is successful and CA in beverages samples can be effectively detected using electrochemical sensors. Additionally, the reaction mechanism of CA was explored through cyclic voltammetry. The application of GPC-350/MoS 2 -CNTs nanocomposites in sensor technology offers innovative approaches for the ultrasensitive detection of flavonoids. Graphical abstract
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International Journal of Electrochemical Science
·
2024
·
IF 1.3
Shiwen Zhao,Shu Du
This study presents the development of a molecularly imprinted polymer (MIP) based voltammetric sensor for the ultra-sensitive detection of osimertinib, a third-generation epidermal growth factor receptor tyrosine kinase inhibitor. The sensor was fabricated using a unique thia-bilane (S-BIL) functional monomer, which enhances the binding affinity and selectivity towards osimertinib. The pS-BIL MIP sensor exhibited a wide linear range (0.01–1000 nM), an extremely low detection limit (0.005 nM), and excellent selectivity, demonstrating its superiority over previously reported methods. The imprinting effect was confirmed through various characterization techniques, revealing the formation of specific recognition sites and improved electron transfer properties. The sensor displayed remarkable stability, retaining 95.2 % of its initial response after 30 days, and high reproducibility relative standard deviation (RSD) = 3.2 %, n = 5). Moreover, the pS-BIL MIP sensor was successfully applied to the determination of osimertinib in spiked human serum samples, with recoveries ranging from 96.5 % to 103.2 % and RSDs below 4.5 %. These findings highlight the immense potential of the developed sensor for the sensitive and reliable monitoring of osimertinib in clinical settings.
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