RSC Advances
·
2023
·Vol. 13
·期 22
·15031-15040
·
IF 3.9
Linhua Wang,Hua Yang,Lulan Wang,Yunwu Li,Wenning Yang,Xu Sun,Lingfeng Gao,Mingyu Dou,Dacheng Li,Jianmin Dou
The inexpensive and highly efficient electrocatalysts toward oxygen evolution reaction (OER) in water splitting electrolysis have displayed promising practical applications to relieve energy crisis. Herein, we prepared a high-yield and structurally regulated bimetallic cobalt-iron phosphide electrocatalyst by a facile one-pot hydrothermal reaction and subsequent low-temperature phosphating treatment. The tailoring of nanoscale morphology was achieved by varying the input ratio and phosphating temperature. Thus, an optimized FeP/CoP-1-350 sample with the ultra-thin nanosheets assembled into a nanoflower-like structure was obtained. FeP/CoP-1-350 heterostructure displayed remarkable activity toward the OER with a low overpotential of 276 mV at a current density of 10 mA cm−2, and a low Tafel slope of only 37.71 mV dec−1. Long-lasting durability and stability were maintained with the current with almost no obvious fluctuation. The enhanced OER activity was attributed to the presence of copious active sites from the ultra-thin nanosheets, the interface between CoP and FeP components, and the synergistic effect of Fe–Co elements in the FeP/CoP heterostructure. This study provides a feasible strategy to fabricate highly efficient and cost-effective bimetallic phosphide electrocatalysts.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2020
·
IF 4.939
Ming-Yu Dou,Shu-Rui Han,Xin-Xin Du,Dong-Hui Pang,Lei-Lei Li
The photocatalyst is a crucial factor in determining solar-to-H 2 efficiency for solar-driven water splitting. Here, the FeP/CdS well-defined heterostructure was elaborately designed and successfully constructed in-situ to achieve efficient water splitting by using a simple and green solvothermal approach. In the synthetic process, the ethylenediamine plays an important role in the construction of intimate contact interface between FeP and CdS. This good quality FeP/CdS heterostructure can efficiently promote charge separation and transportation, and therefore the charge recombination of CdS was significantly suppressed. As a result, the as-synthesized FeP/CdS heterostructure showed excellent photocatalytic performance under visible-light irradiation with an optimal hydrogen evolution rate of 37.92 mmol g −1 h −1 and an apparent quantum yield of 31.50% at 420 nm far exceeding that of pristine CdS by more than 122 folds. This rate, to the best of our knowledge, outperforms other similar catalytic systems .
研究领域:
材料科学
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能源科学
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化学工程
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Mei-Ling Xu,Jia-Ran Li,Xiu-Mei Wu,Ting Yu,Guan-Ying Qin,Fu-Ji Wang,Li-Na Zhang,Kui Li,Xin Cheng
Covalent organic frameworks (COFs) as an emerging porous material have exhibited excellent application prospects in the field of photocatalysis. Nevertheless, the overall water splitting using solar energy by COF-based photocatalysts remains a huge challenge due to the rapid charge recombination and insufficient redox catalytic capacity. Herein, for the first time, the novel Fe-MOF-derived α-Fe 2 O 3 and FeP-PC was designed and adopted as dual co-catalysts to facilitate the separation and utilization efficiency of charge carriers and activate the overall water splitting performance of the ketoenamine based TpPa-1-COF, with both the porous α-Fe 2 O 3 and FeP-PC acting as the framework supporting to effectively prevent the agglomeration of TpPa-1-COF during the fabrication and photocatalytic process. Meanwhile, the construction of Z-scheme heterostructures and the connection of covalent bonds in the interface of α-Fe 2 O 3 /TpPa-1-COF/FeP-PC effectively facilitate the separation and transport of charge. Consequently, the optimal α-Fe 2 O 3 /TpPa-1-COF/FeP-PC excites very competitive photocatalytic overall water splitting performance.
研究领域:
材料科学
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光催化技术
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能源转换
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Fan Shi,Hui Cheng,Yucen Yao,Zejun Zhang,Lina Zeng,Lin Li,Wei Sun
Sensitive detections of nitrite (NO 2 - ), hydrogen peroxide (H 2 O 2 ), bromate (BrO 3 - ) and trichloroacetic acid (TCA) have very important significance in different fields. Herein, Pt-doped FeP-C hollow nanorod was fabricated by a controllable etching and in-situ carbonating procedure. Then, a modified electrode (Nafion/Hb/Pt-FeP-C/CILE) was constructed by dropping Pt-FeP-C, hemoglobin (Hb) and Nafion membrane on carbon ionic liquid electrode (CILE). Benefitting from the synergistic effects of Pt NPs and FeP-C, Pt-FeP-C provides a favorable biocompatible microenvironment for Hb attachment with enhanced catalytic performance. Electroanalysis of NO 2 - , H 2 O 2 , BrO 3 - and TCA were realized in the detection range from 0.2 to 7.0 mmol·L -1 , 0.3 to 7.0 mmol L -1 , 0.76 to 7.0 mmol·L -1 , 5.0 to 900.0 mmol L -1 , and the detection limits were 0.07 mmol L -1 , 0.1 mmol L -1 , 0.25 mmol L -1 and 1.67 mmol L -1 , respectively. The real samples were further analyzed with satisfactory results.
研究领域:
分析化学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Yue Sun,Yan Xu,Haoxian Wang,Yingjiaqi Yin,Yazi Liu,Jingkai Lin,Shaogui Yang,Yuting Wang,Xinqing Chen,Huan He,Gancheng Zuo
Efficient interfacial charge transfer and robust interface interactions are critical for superior charge carrier separation and advanced heterogeneous photocatalysts. Herein, a Schottky heterojunction has been designed by in situ growth of ZnIn 2 S 4 (ZIS) nanosheets onto Co-doped FeP nanorods (Co X -FePZ), building a dual electron transfer bridge (Fe-S/Zn-P). X-ray photoelectron spectroscopy, X-ray absorption fine structure, and density functional theory calculations prove that trace Co doping alters the chemical bonding structure and Fermi level (E f ) of FeP and ZIS, creating a Schottky heterojunction. The reversed internal electric field and dual electron transfer pathways provide driving force and transmission channels for electron flow. Schottky heterojunction prevents electron reflux and improves carrier separation efficiency, boosting photocatalytic hydrogen evolution. The optimized Co 2.5 -FePZ achieves a remarkable H 2 production rate of 9.9 ± 0.1 mmol·g −1 ·h −1 , approximately 12.4 times that of pure ZIS, with an apparent quantum yield (AQY) of 11 ± 1 % at 365 nm. This work delicately modulated the heterojunction interface and achieved the transition from an Ohmic heterojunction to a Schottky heterojunction, unveiling a novel strategy to optimize carrier migration pathways via trace element doping and covalent coupling.
研究领域:
材料科学
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光催化
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纳米材料
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表面科学
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能源化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Food Analytical Methods
·
2024
·
IF 2.6
Zhai Yajie,Shi Yingkun,Feng Yingjie,Chen Sichun,Wang Songlei
Copper ions (Cu 2+ ) are commonly present in meat and their presence has been shown to affect human health. Therefore, there is an urgent need to develop a rapid and sensitive method for detecting trace amounts of Cu 2+ . In this study, we developed an electrochemical sensor based on g-C 3 N 4 @FeP-C/GCE for the detection of Cu 2+ in beef and the beef liver. The incorporation of FeP-C into the g-C 3 N 4 framework enhances the catalytic performance of the sensor through strong electrostatic interactions between the positively charged metal cations in FeP-C and the negatively charged nitrogen in g-C 3 N 4 . The combination of g-C 3 N 4 (graphitic carbon nitride) and FeP-C (Fe 3 O 4 phosphorylated doped carbon) resulted in the generation of additional active sites for the sensor, further improving its catalytic performance. The morphology and internal structure of the nanocomposite were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The developed sensor exhibited sensitive Cu 2+ detection in meat, with a limit of detection (LOD) of 16.7 nM and a linear range of 0.05—150 μM. Furthermore, the method demonstrated satisfactory recoveries in beef and beef liver, with a relative standard deviation (RSD) not exceeding 5%.
研究领域:
食品科学
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分析化学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Ying Li,Yanyan Wu,Hongru Hao,Mengke Yuan,Zhe Lv,Lingling Xu,Bo Wei
Oxygen evolution reaction (OER) is a key step for electrochemical water splitting and understanding the surface reconstruction of OER pre-catalysts is of vital importance. Herein, hybrid Ni 5 P 4 @FeP nanosheet arrays were evaluated as promising OER pre-catalysts. The dynamic surface evolution was probed by in situ Raman spectroscopy, which revealed that Ni 5 P 4 @FeP was rapidly reconstructed to NiFe 2 O 4 during the anodic scan. The structural instability of amorphous NiFe 2 O 4 led to partial reconstitution to Ni/FeOOH at high oxidation potentials. As-formed Ni/FeOOH@NiFe 2 O 4 hybrid with high structural reversibility was established as a truly active species, which exhibited excellent alkaline OER performance with a low overpotential of 205 and 242 mV under current densities of 10 and 100 mA cm −2 , respectively. This work provides a facile strategy to in situ construct an amorphous spinel/oxyhydroxide hybrid structure using electrochemical activation that holds strong promise for potential application in electrochemical water splitting and related energy devices.
研究领域:
电化学
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材料科学
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催化
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2022
·
IF 5.436
Yongsheng Wang,Xinyu Wang,Lipeng Zhang,Yufeng Zhang,Zhaoxiang Xu,Lianyue Lu,Junling Huang,Likun Yin,Wei Zhu,Zhongbin Zhuang
Iron phosphide nanoparticles (NPs) are promising noble metal-free electrocatalysts for the hydrogen evolution reaction (HER), but they usually show inferior activity due to the limited surface area and oxidative passivation. We reported a facile synthetic method to prepare FeP hollow NPs (HNPs) with various precursors. It was proven that the structural parameters (i.e., size, phosphating temperature, phase, and surfactant) of oxide precursors were correlated to the electrochemically active surface area (ECSA), phase purity, surface oxidation, and hollow morphology of FeP HER catalysts, thus affecting the HER activity. Among the three FeP HNPs, the 9 nm FeP HNPs prepared using the Fe3O4 precursor exhibited the highest overall activity with the lowest overpotential of 76 mV to drive a cathodic current density of 10 mA·cm–2 due to the highest ECSA, while 25 nm FeP prepared using the Fe2O3 precursor showed the highest turnover frequency because of the high phase purity and low surface oxidation degree.
研究领域:
材料科学
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电化学
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催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2022
·Vol. 29
·期 5
·e202202858
·
IF 5.02
Yongsheng Wang,Xinyu Wang,Hailong Wei,Junling Huang,Likun Yin,Wei Zhu,Zhongbin Zhuang
Graphical This work reports the homogeneous incorporation of Co into the FeP host to promote both activity and stability of HER for the PEMWE application and demonstrates the probable origin of the high performance by ex situ experiments. Metal phosphides are promising noble metal-free electrocatalysts for hydrogen evolution reaction (HER), but they usually suffer from inferior stability and thus are far from the device applications. We reported a facile and controllable synthetic method to prepare metal-incorporated M-FeP nanoparticles (M=Cr, Mn, Co, Fe, Ni, Cu, and Mo) with the guide of the density functional theory (DFT). The evaluated HER activity sequence was consistent with the DFT predictions, and cobalt was revealed to be the appropriate dopant. With the optimization of the Co/Fe ratio, the Fe 0.67 Co 0.33 P/C only required overpotentials of 67 mV and 129 mV to obtain the cathodic current density of 10 and 100 mA cm −2, respectively. It maintained the initial activity in the 10 h stability test, surpassing the other Co-FeP/C catalysts. Ex situ experiments demonstrated that the decreased element leaching and the increased surface phosphide content contributed to the high stability of the Fe 0.67 Co 0.33 P/C. A proton exchange membrane water electrolyzer was assembled using the Fe 0.67 Co 0.33 P/C as the cathodic catalyst. It showed a current density of 0.8 A cm −2 at the applied voltage of 2.0 V and retained the initial activity in the 1000 cycles’ stability test, suggesting the potential application of the catalysts.
研究领域:
电化学
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材料科学
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催化
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可再生能源
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Energy Storage Materials
·
2020
·
IF 16.28
Shanshan Shi,Zhen Li,Liying Shen,Xiuping Yin,Yiming Liu,Guoliang Chang,Jing Wang,Shengming Xu,Jiujun Zhang,Yufeng Zhao
Flexible and wearable portable electronic devices have attracted increasing interest as a promising technology for the growing flexible electrochemical energy storage , which however require excellent mechanical property, fast electrochemical kinetics and good structural stability of the electrode. To-date the reports about flexible sodium ion batteries are still rare owing to the lack of proper electrodes. Herein, we report a new binder-free anode material of electrospun free-standing FeP@NPC film with FeP nanoparticles wrapped in 3D interconnected N, P -codoped carbon fiber for high-performance sodium ion storage. The unique structure design offers various structural advantages: the growth of FeP nanoparticle is confined by the PAN nanofiber during the synthesis, and agglomeration of FeP is alleviated; the 3D connected carbon fiber network serves as electron/ion transport pathway to accelerate the reaction kinetics and meanwhile accommodates the volume expansion of FeP during the sodiation/disodiation process. A high reversible capacity of 557 mA h g -1 and remarkable cycling life of 1000 cycles are achieved. This research paves a novel strategy to construct the phosphides-based high-performance anode for the potential application in flexible energy storage devices.
研究领域:
材料科学
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能量存储
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纳米技术
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电化学
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Hui Zhu,Kaikai Chen,Hailiang Liu,Jian Zhao,Qinglin Huang,Changfa Xiao
The improper disposal of waste oil and industrial oil-water emulsions presents critical ecological and energy challenges, driving the development of robust separation technologies. This study introduces a stainless steel mesh-supported polyperfluorinated ethylene-propylene/carbon nanotube (SSM-FEP/CNTs) composite membrane fabricated via a one-step thermoplastic sintering method. The innovative design leverages CNTs to create a three-dimensional bridging network within the FEP matrix, enhancing mechanical stability, optimizing pore architecture (average pore size: 0.15–0.30 μm), and establishing tubular nanostructured channels for efficient oil transport. The membrane exhibits exceptional stability in harsh environments, with < 5 % performance degradation in pH 2–14, and high temperatures (up to 100°C) during the continuous filtration tests, validated by SEM, FTIR, and TGA analyses. The one-step sintering process ensures scalability and cost-effectiveness, with a maximum flux of 52 L·m⁻²·h⁻¹ for kerosene, surpassing conventional polymer membranes. By integrating mechanical robustness, chemical inertness, and structural and transport properties, this composite membrane addresses limitations of low flux, poor durability, and complex fabrication in traditional systems, offering a sustainable solution for industrial wastewater treatment, waste oil recovery (e.g., refineries, marine applications), and closed-loop resource management. Its ability to maintain ultrahigh efficiency and durability under challenging conditions positions it as a transformative technology for environmental remediation and sustainable manufacturing.
研究领域:
环境工程
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材料科学
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化学工程
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纳米技术
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膜技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2020
·
IF 14.588
Zhiming Zheng,Hong-Hui Wu,Haodong Liu,Qiaobao Zhang,Xin He,Sicen Yu,Victoria Petrova,Jun Feng,Robert Kostecki,Ping Liu,Dong-Liang Peng,Meilin Liu,Ming-Sheng Wang
Conversion-type transition-metal phosphide anode materials with high theoretical capacity usually suffer from low-rate capability and severe capacity decay, which are mainly caused by their inferior electronic conductivities and large volumetric variations together with the poor reversibility of discharge product (Li3P), impeding their practical applications. Herein, guided by density functional theory calculations, these obstacles are simultaneously mitigated by confining amorphous FeP nanoparticles into ultrathin 3D interconnected P-doped porous carbon nanosheets (denoted as FeP@CNs) via a facile approach, forming an intriguing 3D flake-CNs-like configuration. As an anode for lithium-ion batteries (LIBs), the resulting FeP@CNs electrode not only reaches a high reversible capacity (837 mA h g–1 after 300 cycles at 0.2 A g–1) and an exceptional rate capability (403 mA h g–1 at 16 A g–1) but also exhibits extraordinary durability (2500 cycles, 563 mA h g–1 at 4 A g–1, 98% capacity retention). By combining DFT calculations, in situ transmission electron microscopy, and a suite of ex situ microscopic and spectroscopic techniques, we show that the superior performances of FeP@CNs anode originate from its prominent structural and compositional merits, which render fast electron/ion-transport kinetics and abundant active sites (amorphous FeP nanoparticles and structural defects in P-doped CNs) for charge storage, promote the reversibility of conversion reactions, and buffer the volume variations while preventing pulverization/aggregation of FeP during cycling, thus enabling a high rate and highly durable lithium storage. Furthermore, a full cell composed of the prelithiated FeP@CNs anode and commercial LiFePO4 cathode exhibits impressive rate performance while maintaining superior cycling stability. This work fundamentally and experimentally presents a facile and effective structural engineering strategy for markedly improving the performance of conversion-type anodes for advanced LIBs.
研究领域:
材料科学
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电化学
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纳米能源材料
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锂离子电池
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固态化学
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计算材料学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）