JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Jiangxin Wang,Xiutao Liu,Chunkun Lin,Kaixin Zhang,Kuanhong Mei,Youhao Yang,Huibin Shi,Zizhu Wang,Yu Zhang,Shuo Li
The integrated design of solar energy conversion and storage systems has attracted increasing attention, and non-spontaneous redox reactions driven by dual photoelectrodes provide a potential solution to this issue. This study presents a solar rechargeable flow battery (SRFB) that combines dual photoelectrodes (BiVO 4 or Mo–BiVO 4 as photoanode, polyterthiophene (pTTh) as photocathode) with cost-effective redox pairs (Fe 3+ /Fe 2+ and Br 3 − /Br − ). The system charges under simulated solar illumination (100 mW∙cm −2 , AM 1.5G) and releases stored energy controllably as electrical energy. Research indicates the Mo–BiVO 4 photoanode and pTTh photocathode achieve an open-circuit voltage of 0.34 V and a short-circuit current density of 0.38 mA cm −2 . Using a specially designed Fe 3+ /Fe 2+ -Br 3 − /Br − (Fe–Br) SRFB device made via 3D printing, a charging photocurrent of approximately 1.9 mA cm −2 is attained. In constant current discharge tests, an initial discharge voltage of 0.23 V is observed at 0.1 mA∙cm −2 within the 10 discharge cycles, demonstrating system stability and offering a viable solution for low-cost, large-scale solar energy storage and conversion.
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Bolun Yu,Jun Chen,Quanzhang Liu,Shuoyang Li,Xiaohang Zhang,Bowen Liang,Zuhong Lin,Haipu Li,Jingjing Yao
The use of metal–organic framework-derived materials for removing micropollutants from water is increasing, but precise composition control remains a challenge. In this study, 14 MIL-100(Fe)-derived materials were synthesized to adsorb and remove antipyrine (ANT) from water by optimizing the heating rate, pyrolysis temperature, and activation methods. The adsorbents demonstrated excellent ANT removal performance across a pH range of 3 to 11, as well as in complex water bodies. They also exhibited easy recovery and outstanding regeneration capabilities. Under the optimized conditions (i.e., ANT content: 10 mg/L, M-600–2 dosage: 0.1 g/L, and pH: 7), M-600-10 displayed the highest adsorption capacity (23.10 mg/g for ANT) while MIL-100(Fe) had limited adsorption capability (2.56 mg/g for ANT). The adsorption process was exothermic and spontaneous, influenced by both membrane diffusion and intraparticle diffusion, and followed the Freundlich and pseudo-second-order models. Despite variations in surface areas (75.70–261.91 m2/g), total pore volumes (0.2019–0.5984 cm3/g), and average pore sizes (7.47–13.99 nm), there was no strong linear relationship with adsorption capacity (7.47–15.99 mg/g). The major components, including Fe/pyrrolic N-doped graphene (PING), Fe3C/PING, Fe3O4/PING, and PING, had calculated adsorption energies of −0.94, −2.16, −0.79, and −2.24 eV, respectively, which correlated positively with Bader charge transfer numbers. The adsorbents relied on van der Waals forces for ANT adsorption, with PING exhibiting the strongest interactions and Fe3O4/PING exhibiting the weakest. These findings enhance the theoretical understanding of derived materials and expand their application in water purification.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Fan Zhao,Chen Wang,Heng Wang,Yao Ying,Wangchang Li,Juan Li,Jingwu Zheng,Liang Qiao,Shenglei Che,Jing Yu
Calcium-overload-mediated tumor therapy has received considerable interest in oncology. However, its efficacy has been proven to be inadequate due to insufficient calcium ion concentration at the tumor site coupled with challenges in facilitating efficient calcium uptake by tumors, leading to unsatisfactory therapeutic outcomes. In the present study, calcium carbonate nanoshell mineralized ferric polydopamine nanoparticles (Fe-PDA@CaCO3 NPs) were prepared for achieving Ca2+-overload-mediated tumor therapy. Upon entering the tumor site, the pH-responsive CaCO3 layer, acting as a “Ca2+ storage pool”, rapidly degraded and released high quantities of free Ca2+ within the weakly acidic environment. The Fe-PDA core, with its excellent photothermal conversion properties, could significantly increase the temperature upon exposure to near-infrared (NIR) light irradiation, thereby activating the TRPV1 channel and leading to a large influx of released Ca2+ into the cytoplasm. Furthermore, the exposed Fe-PDA core could react with the tumor-overexpressed hydrogen peroxide (H2O2) to efficiently produce hydroxyl radicals (•OH), significantly increasing intracellular reactive oxygen species (ROS) levels and thus inhibiting the activity of the Ca2+ efflux pump, resulting in a high intracellular Ca2+ concentration. Ultimately, the increase in calcium/ROS levels could disrupt mitochondrial homeostasis and activate the apoptosis pathway. The current work presents a promising approach for tumor therapy using photothermal-enhanced calcium-overload-mediated ion interference therapy and chemodynamic therapy.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Yucheng Wu,Yanli Yu,Wei Shen,Yimin Jiang,Rongxing He,Ming Li
Developing simple and energy-saving pathways to prepare high-efficient and robust non-noble metal based electrocatalysts remains a huge challenge to hydrogen production from seawater electrolysis. Here we demonstrate a facile hydrothermal-calcination-etching approach that simultaneously achieves the required surface N doping and Fe vacancies generation to activate the Ni-O-Fe active motifs in N -v Fe -NiFe 2 O 4 /NF. The unique localized environments (Ni- N -Fe structures and unsaturated O- and N -coordination) due to dual-defect strategy can effectively regulate the electronic structure of the Ni-O-Fe motif to make the motif more reactive. As a result, the N -v Fe -NiFe 2 O 4 /NF catalyst exhibits overpotentials of 210, 213 and 222 mV to deliver 100 mA cm −2 in 1.0 M KOH, simulated seawater and alkaline seawater environments, respectively. Theoretical calculations prove that the Ni-O-Fe structure is the active motif and that the presence of special localized environments can optimize the adsorption of key intermediates on the activated active motifs.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-13
·
IF 15.7
Guo Wei,Pan Meiling,Xie Qianjie,Fan Hua,Luo Laihao,Jing Qun,Shen Yehua,Yan Yan,Liu Mingkai,Wang Zheng
Renewable biomass serves as a cost-effective source of carbon matrix to carry single-atom catalysts (SACs). However, the natural abundant oxygen in these materials hinders the sufficient dispersion of element with high oxygen affinity such iron (Fe). The lowered-density and oxidized SACs greatly limits their catalytic applications. Here we develop a facile continuous activation (CA) approach for synthesizing robust biomass-derived Fe-SACs. Comparing to the traditional pyrolysis method, the CA approach significantly increases the Fe loading density from 1.13 atoms nm −2 to 4.70 atoms nm −2 . Simultaneously, the CA approach induces a distinct coordination tuning from dominated Fe-O to Fe-N moieties. We observe a pH-universal oxygen reduction reaction (ORR) performance over the CA-derived Fe-SACs with a half-wave potential of 0.93 V and 0.78 V vs. RHE in alkaline and acidic electrolyte, respectively. Density functional theory calculations further reveal that the increased Fe-N coordination effectively reduces the energy barriers for the ORR, thus enhancing the catalytic activity. The Fe-SACs-based zinc-air batteries show a specific capacity of 792 mA·h·g Zn −1 and ultra-long life span of over 650 h at 5 mA cm −2 .
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2025
·
IF 6.1
Miaomiao Tang,Xia Zhang,Bo Wang
Superhydrophobic solid-liquid composite (SLC) coatings are recognized as a promising material for addressing wear and ice accumulation issues due to their inherent self-lubricating properties. In this study, iron-doped carbon nanotube (CNT@Fe) coatings with photothermal, anti-friction, and wear-resistant properties were successfully fabricated via an aerosol-assisted chemical vapor deposition (AACVD) process. Subsequently, a spin-coating process was employed to apply perfluoropolyether (PFPE) onto the CNT surface, resulting in the formation of solid-liquid composite coatings. The CNT coating inherently proves to be highly stable, self-lubricating, and wear-resistant properties. Following the application of the solid-liquid composite, the film exhibited an average friction coefficient decrease to 0.10, marking a 33 % decrease compared to the 0.15 coefficient of CNT coatings. Additionally, the wear rate decreased by approximately 74 %. The main factors for reducing friction and preventing wear are the self-lubricating and bearing properties of CNT, along with the solid-liquid synergistic lubrication provided by solid-liquid composite coatings. Meanwhile, the superhydrophobicity of the coatings and the photothermal effect result in excellent anti-icing properties, which make it possible to de-ice in 300 s. The coatings exhibit prospective for outdoor anti-icing applications and mechanical component surfaces due to their photothermal and wear resistance characteristics.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Dongdong Zhang,Binyuan Tang,Kai Wang,Lin Wang,Kai Tang,Shanliang Chen,Xiaoqiang Zhan,Hongli Yang,Weiyou Yang
Transition-metal-based layered double hydroxides (LDHs) are emerging as one of the most promising candidates with superior oxygen evolution reaction (OER) activity. However, their fabrication under mild conditions remains a significant challenge. Here, we propose a low-cost, high-production-rate strategy for controlled preparation of AlOOH/reduced graphene oxide (rGO) with strong adsorption capacity for transition metal cations, and then in-situ conversion to CoAl-LDH/rGO, NiAl-LDH/rGO and FeAl-LDH/rGO under ambient conditions. Based on Density Functional Theory calculations, it is witnessed that the rational electronic coordination between Co and Al enables the charge absorption by surrounding oxygen atoms, thereby playing a critical role in reducing the adsorption free energy and overpotential of OER intermediates toward efficient OER. Consequently, the resultant CoAl-LDH/rGO hybrids exhibit an overpotential of just 368 mV at the current density of 100 mA/cm 2 , with a low Tafel slope of 43.2 mV/dec. Moreover, under Air Mass 1.5 Global (AM 1.5G) illumination, their solar-to-hydrogen (STH) conversion efficiency of photoelectrochemical system achieves ∼ 11.61 %, with robust operation stability up to 24 h, demonstrating great potential for practical applications as advanced OER catalysts.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TALANTA
·
2025
·
IF 6.1
Zihan Wang,Yihong Chen,Zexian Chen,Jiarong Duan,Huiping Wang,Erhua Guo,Jianhui Zhi,Shaomin Shuang,Chuan Dong,Jun Li,Xiaojuan Gong
Designing and developing a simple and reliable method for detecting disease biomarkers is crucial for early disease prevention and diagnosis. Fe-functionalized carbon quantum dot (Fe-CQD), synthesized from natural dandelion biomass through a controlled process, were developed as nanozymes with outstanding peroxidase-like activity. Uricase decomposes uric acid to release hydrogen peroxide (H 2 O 2 ), which the Fe-CQD nanozymes catalyze to produce reactive oxygen species (ROS) such as singlet oxygen ( 1 O 2 ) and hydroxyl radicals (•OH). These ROS then oxidize the colorless substrate o -phenylenediamine (OPD) into yellow 2,3-diaminophenazine (DAP), enabling visual detection of uric acid. Building on this principle, we have developed, for the first time, a visual sensing platform using Fe-CQD nanozymes. This platform integrates absorption spectra, a microplate reader, and smartphone-assisted visible-light imaging to detect uric acid, achieving detection limits as low as 0.31, 0.36, and 0.83 μM, respectively. The platform demonstrated excellent accuracy in clinical blood sample analysis, yielding results highly consistent with standard hospital methods and the UA Assay Kit-based colorimetric method. It also exhibited robust anti-interference capabilities and practicality, making it a reliable tool for UA detection in real-world clinical settings. This innovative platform highlights the potential of nanozymes in biomarker detection and lays a theoretical foundation for integrating intelligent, portable sensing technologies into clinical diagnostics.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Ruting Huang,Peidong Ma,Yeyin Zhang,Kaiming Chen,Liping Wang,Ranran Wang,Xianyang Shi,Ying Yu
The enrichment efficiency during the high-value conversion of carbon dioxide still presents certain limitations in practical applications. Iron-cobalt-based metal-organic framework (MOF) nanoparticles, which exhibit lower toxicity to Microcystis aeruginosa , have been successfully introduced into microalgae solutions to address the issue of low CO 2 concentration in interfacial reactions. When 1,4-naphthalenedicarboxylic acid was employed as an organic ligand under synthesis conditions of 130°C, pH 3.5, and a reaction time of 15 h, the resulting MOF exhibited a CH₄ yield of 92.6 μmol g⁻¹ h⁻¹ in the photocatalytic system at room temperature (25°C). The combination of Microcystis aeruginosa with the optimal Fe-Co-MOFs system achieved a selectivity of up to 96.1 % in converting CO 2 into CH 4 . When Microcystis aeruginosa was cultured in a modified medium with a pH of 6.78 and 5 mg of NDC-T130 at 25°C for 12 h, an OD 600 of 0.192 ± 0.01 was observed. The CH₄ yield from the Microcystis aeruginosa -NDC-T130 co-culture composite system was 1.46 times that of the Fe-Co-MOFs. Density-functional theory calculations indicate that carbon dioxide molecules preferentially adsorb on the crystal surfaces of (CoFe 2 )O 4 (113) and (Co 0.457 Fe 0.543 )(Co 1.543 Fe 0.457 )O 4 (311), with the Co site being more likely to serve as the reactive site for CO 2 photoreduction to CH 4 within the Fe-Co-MOFs. Transcriptome analysis demonstrates that MOFs enhance the dark reactions of microalgae and facilitate further CO 2 fixation for photosynthesis and electron transfer, which are crucial for improving the high-value CO 2 conversion efficiency of this system. This strategy provides both experimental and theoretical support for iron-based MOFs as photocatalytic materials, regardless of CO 2 concentration.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Lina Zhang,Ziren Wan,Jia Deng,Fangzhou Li,Jingqi Dong,Wulin Yang,Shaodong Xie,Guanghe Li,Fang Zhang
The catalytic membrane, combining confinement effect with advanced oxidation processes , exhibits great potential as an efficient technology for removing contaminants and mitigating membrane fouling . Herein, the Prussian blue analogues (PBAs) functionalized graphene oxide (GO) membranes, referred as PGMs, was successfully fabricated. It exhibited a package-like confined structure where Co–Fe PBAs were encapsulated within interconnected GO nanosheets . The surface properties, internal structure as well as the catalytic performance of PGMs were controlled by adjusting the amount of Co–Fe PBAs anchored on GO nanosheets . The designed PGM as efficient peroxymonosulfate activator exhibited exceptional catalytic performance, achieving complete removal of bisphenol A (BPA) with a retention time of 31 ms. The corresponding first-order rate constant was 6000 min −1 , which surpassed conventional batch system by four orders of magnitude (0.2194 min −1 ). Moreover, the redox cycle involving Fe 2+ and Co 3+ , coupled with the effective suppression of ion leaching from Co–Fe PBAs nanoparticles (<10 μg/L) through GO protective layers, ensured the stable catalytic performance of PGM over 144 h. This study employs a novel approach to confine catalytic nanoparticles within two-dimensional nanosheets, demonstrating the potential applications of the resulting confined membrane in water treatment.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2024
·Vol. 22
·期 1
·1-23
·
IF 10.6
Li Haiqiu,Dou Yichen,Yang Hang,Xing Hanlin,Zhu Cheng,Wang Tao,Xuan Zhaopeng,Yang Mingxi
Background Despite the higher sensitivity of melanoma towards ferroptosis and photodynamic therapy (PDT), the lack of efficient ferroptosis inducers and the poor solubility of photosensitizers restrict their synergistic strategies. With unique advantages, carbon dots (CDs) are expected to serve as innovative building blocks for combination therapy of cancers. Results Herein, an ferroptosis/PDT integrated nanoplatform for melanoma therapy is constructed based on chlorin e6-modified Fe ions-doped carbon dots (Fe-CDs@Ce6). As a novel type of iron-carbon hybrid nanoparticles, the as-prepared Fe-CDs can selectively activate ferroptosis, prevent angiogenesis and inhibit the migration of mouse skin melanoma cells (B16), but have no toxicity to normal cells. The nano-conjugated structures facilitate not only the aqueous dispersibility of Ce6, but also the self-accumulation ability of Fe-CDs@Ce6 within melanoma area without requiring extra targets. Moreover, the therapeutic effects of Fe-CDs@Ce6 are synergistically enhanced due to the increased GSH depletion by PDT and the elevated singlet oxygen ( 1 O 2 ) production efficiency by Fe-CDs. When combined with laser irradiation, the tumor growth can be significantly suppressed by Fe-CDs@Ce6 through cyclic administration. The T 2 -weighted magnetic resonance imaging (MRI) capability of Fe-CDs@Ce6 also reveals their potentials for cancer diagnosis and navigation therapy. Conclusions Our findings indicate the multifunctionality of Fe-CDs@Ce6 in effectively combining ferroptosis/PDT therapy, tumor targeting and MRI imaging, which enables Fe-CDs@Ce6 to become promising biocompatible nanoplatform for the treatment of melanoma. Graphic Abstract
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2024
·
IF 4.1
Zhongyun Yang,Xiaojia Zhang,Kexin Huang,Muhammad Waqas,Xinglan Peng,Limin Wang,Xiaotian Liu,Dujuan Huang,Qiulan Huang,Du-Hong Chen,Youjun Fan,Wei Chen
Fe/N/C is recognized promising catalyst for oxygen reduction reaction (ORR), playing a pivotal role in advancing the commercialization of proton exchange membrane fuel cells. However, an inadequate ORR activity hinders its potential applications. Here, we present the preparation of M–Nx–C (M = Fe, Zn) bi-active sites for promoting ORR. By the pyrolysis of benzimidazole salts, a porous coin-like iron-zinc-based nitrogen-doped carbon materials (FeZn-NC) catalyst was synthesized with abundant active sites. X-ray photoelectron spectroscopy and transmission electron microscopy characterizations indicated the successful doping of Zn and Fe within the carbon framework. Electrochemical measurements demonstrated great positive half-wave potential (0.90 V), high limiting current density (5.15 mA·cm −2 ), excellent methanol resistance, and good stability of FeZn-NC, compared to commercial Pt/C catalysts. Furthermore, an investigation into correlation between doping content of Fe and the ORR performance was carried out. As an cathode catalyst of zinc-air battery, FeZn-NC exhibited more significant advantages, including a high open-circuit voltage (1.54 V), enhanced power density (199.89 mW·cm −2 ), good specific capacity (771.9 mAh g Zn −1 ), and enhanced stability compared to Pt/C. By presenting an approach for the controlled synthesis of metal-doped carbon materials, this work establishes the groundwork for potential applications in catalytic fields, as demonstrated by the prepared FeZn-NC.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）