APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Zhaoxiang Qi,Yan Zhang,Junzi Huang,Wenjun Zhang,Ying Wang,Ying Qi,Shu Yin,Hongyu Mi,Yahong Xie
The integration of environmental remediation with green hydrogen production bifunctional water electrolysis in hypersaline industrial effluents requires catalysts that simultaneously address efficiency-stability trade-offs. This study presents a self-supported P-SnCoFe-LDH/NF architecture engineered through dual-ion co-doping, demonstrating unprecedented performance in chloride-rich alkaline oilfield wastewater. The optimised catalyst achieves overpotentials of 253 mV for oxygen evolution reaction (OER) and 187 mV for hydrogen evolution reaction (HER) at 10 mA cm −2 with 12-h stability, representing a 4 and 41 % performance retention improvement over conventional CoFe-LDH in aggressive media. Mechanistic studies reveal dual electronic modulation: Sn-doping induces d-band center downshifting while P-incorporation generates electron-deficient metal centers. This synergy establishes optimal adsorption–desorption equilibrium, evidenced by 21 % reduced OER charge transfer resistance and 56 % enhanced HER Volmer kinetics. The symmetric electrolyser (P-SnCoFe-LDH/NF||P-SnCoFe-LDH/NF) maintains <2 % voltage decay during continuous operation. This work presents a new paradigm for multifunctional electrocatalysis in complex aqueous matrices.
研究领域:
环境科学
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电化学
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材料科学
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能源技术
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催化
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水处理
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Shuting Zhang,Mingyang Liu,Jianan Liu,Zhangxin Xu,Qianxi Liu,Ruihong Wang,Huiyuan Meng,Baojiang Jiang
It is an efficient strategy to introduce dual active sites into alkaline urea-assisted water electrolysis systems by interfacial coupling, but it still poses certain challenges. In this study, Ni 2 P-RuP 2 /C with hollow sphere structure is designed and synthesized by using solvothermal, ion exchange and one-step phosphating strategy. Studies utilizing density functional theory (DFT) and Synchrotron radiation show that Ni-P-Ru bridge in Ni 2 P-RuP 2 /C acts as an electron transport pathway that promotes localized charge redistribution, causing electrons to flow from Ni 2 P/C to RuP 2 /C, optimizing the d-band center and reducing the reaction barrier of HER and UOR. It is determined that the electron-rich Ru sites favor proton adsorption and the electron-deficient Ni sites favor the adsorption of urea molecules and the release of CO 2 which become the true active sites of HER and UOR, respectively. The optimized Ni 2 P-RuP 2 /C need merely 13 mV and 1.314 V to attain 10 mA cm −2 for HER and UOR, respectively. This study provides a reliable pathway for green hydrogen production through the construction of Ni-P-Ru bridge.
研究领域:
电化学
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催化化学
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材料科学
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能量转换
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计算化学
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Qixuan Qin,Yizhuo Fan,Wei Wang
In this work, Fe2O3 nanocubes doped with different amounts of transition metals (Cu, Zn) were prepared by hydrothermal synthesis and annealing method. Gas sensing performance tests show that the prepared pristine Fe2O3 exhibits the conductive property of an n-type material, while Cu&Zn doped Fe2O3 exhibit p-type conductive property. The sensors based on 5 at% Cu&Zn doped Fe2O3 showed significantly improved response, selectivity, long-term stability, and moisture resistance to acetone compared to the pristine Fe2O3 nanocubes. X-ray photoelectron spectroscopy (XPS) results confirmed that the adsorbed oxygen of 5 at% Cu&Zn doped Fe2O3 were significantly higher than that of the pristine Fe2O3, which is the main reason for the improved gas sensing performances. Therefore, this study provides an effective way to develop low-cost and high-performance gas sensors based on transition metal-doped metal oxide.
研究领域:
材料科学
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纳米技术
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传感器
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固体物理
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 30
·e01615
·
IF 2
Bing Wang,Pinliang Lai,Jian Zhang,Guomin Li,Rao Fu,Hui Liu
Graphical The AgPCN+APS photocatalytic system was constructed in situ and its performance in degrading dyes in complex water environments was systematically investigated. It is of vital importance to develop highly efficient photocatalysts capable of removing dyes from actual wastewater environments. In this study, we constructed a in-situ, novel P-doped g-C 3 N 4 /Ag 3 PO 4 Z-scheme heterojunction photocatalyst (AgPCN) to degrade rhodamine B(RhB) in wastewater activated by persulfate (APS). Without the addition of persulfate, the kinetic degradation constant of RhB degraded by AgPCN can reach 0.53619 min −1 . Under the activation with a specific amount of persulfate, the kinetic degradation constant of RhB in the AgPCN + APS photocatalytic system can reach 0.78844 min −1 , which is 1.47 times higher than that of pure AgPCN. This is attributed to the structural defects of AgPCN itself and the energy level transformation caused by doping. Additionally, the activation of APS stimulates the generation of free radicals such as SO 4 · 2− , O 2 · − , and ·OH during the degradation process of AgPCN. It is worth noting that the AgPCN + APS system has a wide pH tolerance, indicating its application potential in complex actual wastewater environments. After three cycles of experiments, it still maintained a degradation efficiency of over 95%. Therefore, the AgPCN + APS system features excellent stability and wide applicability, providing a promising technical approach for the industrial treatment of dye wastewater.
研究领域:
环境科学
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材料科学
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化学工程
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光催化
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水处理技术
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产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2025
·
IF 17.7
Hong-Rui Zhu,Xi-Lun Wang,Juan-Juan Zhao,Meng-Han Yin,Hui-Min Xu,Gao-Ren Li
Plastics are ubiquitous in human life and pose certain hazards to the environment and human body. The increasing amount of CO 2 in the atmosphere will lead to the greenhouse effect. Therefore, it is urgent to treat microplastic waste and CO 2 by using environmentally friendly and efficient technologies. In this work, we developed an efficient photoelectrocatalytic system composed of Ni single atoms (Ni SAs) supported by P, N-doped amorphous NiFe 2 O 4 (Ni SAs/A-P-N-NFO) as anode and Ag nanoparticles (Ag NPs) supported by CuO/Cu 2 O nanocubes (Ag NPs@CuO/Cu 2 O NCs) as cathode for microplastic oxidation and CO 2 reduction. The Ni SAs/A-P-N-NFO was synthesized by calcination-H 2 reduction method, and it achieved a Faraday efficiency of 93% for the oxidation reaction of poly (ethylene terephthalate) (PET) solution under AM 1.5 G light. As a photocathode, the synthesized Ag NPs@CuO/Cu 2 O NCs was utilized to reduce CO 2 to ethylene and CO at 1.5 V vs . RHE with selectivity of 42% and 55%, respectively. This work shows that the photoelectrocatalysis, as an environmentally friendly technology, is a feasible strategy for reducing the environmental and biological hazards of light plastics, as well as for efficient CO 2 reduction.
研究领域:
环境科学
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材料科学
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电化学
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纳米技术
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催化
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yan Huang,Daixin Ye,Jing Yang,Huan Lu,Li Li,Yaping Ding
Herein, based on the dual-signal strategy, an electrochemical sensor with molecularly imprinted polymer (MIP) was designed for the analysis of p-Hydroxyacetophenone (p-HAP) for the first time. The sensor was fabricated by modifying the electrode with NiFe prussian blue analogue (NiFe-PBA) and followed by SnS 2 , obtaining the dual-signal from [Fe(CN) 6 ] 3−/4− at 0.20 V and NiFe-PBA at 0.52 V. In the electropolymerization of the MIP film, o-phenylenediamine was used as functional monomer and p-HAP acted as template molecule. After the adsorption of p-HAP, the two above oxidation peak currents decreased simultaneously compared with the elution, achieving the dual-signal analysis. Under the optimal conditions, the sensor exhibited a wide linear range of 10 −13 M to 10 −7 M and a low detection limit of 3.52 × 10 −14 M (3σ). Moreover, it was successfully applied to the p-HAP detection in human serum and environment water samples with satisfactory recovery.
研究领域:
分析化学
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电化学
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环境科学
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Jiuli Chang,Shiqi Zang,Wenfang Liang,Dapeng Wu,Zhaoxun Lian,Fang Xu,Kai Jiang,Zhiyong Gao
The intrinsic faradic reactivity is the uppermost factor determining the charge storage capability of battery material, the construction of p-n junction composing of different faradic components is a rational tactics to enhance the faradic activity. Herein, a reduced graphene oxide@cobalt nickle sulfide@nickle cobalt layered double hydroxide composite (rGO@CoNi 2 S 4 @NiCo LDH) with p-n junction structure is designed by deposition of n -type nickle cobalt layered double hydroxide (NiCo LDH) around p-type reduced graphene oxide@cobalt nickle sulfide (rGO@CoNi 2 S 4 ), the charge redistribution across the p-n junction enables enhanced faradic activities of both components and further the overall charge storage capacity of the resultant rGO@CoNi 2 S 4 @NiCo LDH battery electrode. As expected, the rGO@CoNi 2 S 4 @NiCo LDH electrode can deliver high specific capacity ( C s , 1310 ± 26 C g −1 at 1 A g −1 ) and good cycleability (77% C s maintaining ratio undergoes 5000 charge-discharge cycles). Furthermore, the hybrid supercapacitor (HSC) based on the rGO@CoNi 2 S 4 @NiCo LDH p-n junction battery electrode exports high energy density ( E cell , 57.4 Wh kg −1 at 323 W kg −1 ) and good durability, showing the prospect of faradic p-n junction composite in battery typed energy storage.
研究领域:
材料科学
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电化学
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能源存储
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纳米材料
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功能材料
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固态物理
·
界面化学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Guanhua Zhang,Mingwang Lu,Qitong Sheng,Guangjian Xing,Xiaojing Yang,Xiaofei Yu,Xinghua Zhang,Zunming Lu,Lanlan Li
The development of highly efficient and stable bifunctional electrocatalysts capable of simultaneously catalyzing the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) is critical for advancing zinc-air batteries (ZABs). However, the linear scaling relationship (LSR) governing the adsorption energies of oxygen species imposes constraints on the concurrent enhancement of ORR and OER performance. In this study, we report the synthesis of a novel FeSn/NC catalyst that exhibits strong p-d orbital hybridization by incorporating p-block Sn metal into d-block Fe metal. This strategy facilitates the manipulation of the d-band center and enables the effective formation of low-spin (LS) Fe 3+ simultaneously. The regulation of the d-band center is identified as an effective strategy to enhance the adsorption energy of OOH* and OH* intermediates, while the LS Fe 3+ configuration can effectively weaken the adsorption strength of the O* intermediate. Consequently, this p-d hybridized Fe-based catalyst successfully overcomes the constraints imposed by LSR, thereby boosting bifunctional activity for both ORR and OER. The synthesized FeSn/NC catalyst demonstrates exceptional bifunctional performance with a potential difference (ΔE) of 0.65 V between ORR and OER activities. Furthermore, ZAB based on FeSn/NC achieves an impressive peak power density of 186.0 mW cm −2 , while maintaining stable operation over 700 h during cycling tests. This work offers new insights into designing high-performance bifunctional electrocatalysts through strategies involving synergistic modulation of d-band center and spin state.
研究领域:
电化学
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材料科学
·
催化
·
能量存储与转换
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Biomed Research International
·
2022
·
IF 3.246
Yan Xu,Mingwei Cheng,Peijun Zhu,Shuo Yang,Chunhua Lai,Shulan Xu
During bone tissue regeneration, neovascularization is critical, and the formation of a blood supply network is crucial for bone growth stimulation and remodeling. Previous studies suggest that bioelectric signals facilitate the process of angiogenesis. Owing to their biomimetic electroactivity, piezoelectric membranes have garnered substantial interest in the field of guided bone regeneration. Nevertheless, the knowledge of their influence due to varying surface potentials on the progression of angiogenesis remains ambiguous. Therefore, we proposed the preparation of an electroactive material, P(VDF-TrFE), and investigated its effects on the activity and angiogenic functions of human umbilical vein endothelial cells (HUVECs). The HUVECs were directly cultured on P(VDF-TrFE) membranes with different surface potentials. Subsequently, cell viability, proliferation, migration, tube formation, and expressions of related factors were assessed through appropriate assays. Our results revealed that the negative surface potential groups exerted differential effects on the modulation of angiogenesis in vitro. The P(VDF-TrFE) membranes with negative surface potential exhibited the greatest effect on cellular behaviors, including proliferation, migration, tube formation, and promotion of angiogenesis by releasing key factors such as VEGF-A and CD31. Overall, these results indicated that the surface potential of piezoelectric P(VDF-TrFE) membranes could exert differential effects on angiogenesis in vitro. We present a novel approach for designing bioactive materials for guided bone regeneration.
研究领域:
生物材料
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组织工程
·
再生医学
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细胞生物学
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生物医学工程
✓ 已验证
DOI
PubMed
高影响因子
Advanced Industrial and Engineering Polymer Research
·
2025
·
IF 12
Change Wu,Yu Ding,Min Xiao,Dongmei Han,Sheng Huang,Shuanjin Wang,Yuezhong Meng
Poly(propylene carbonate-co-phthalate) (PPC-P), limited by inferior melt strength and heat resistance, exhibits poor foamability and thermal stability. This study enhances PPC-P through biodegradable PLA incorporation and HDI-induced dynamic vulcanization of terminal hydroxyl groups, improving the interfacial compatibility. The gel contents, rheological properties, crystallization behaviours, mechanical properties, compatibility and microstructures of the PPC-P/PLA blends are investigated in detail. By adjusting the compatibilizer-NCO dosage and PLA contents, the melt strength and viscoelasticity of the blends are effectively enhanced and regulated. Enhanced interfacial compatibility among PPC-P and PLA phases, improves the tensile strength and elongation at break of PPC-P/PLA composites, with values of 48.2 MPa and 12.9%, respectively. By using the sub-critical CO 2 as blowing agent, light weight and low-shrinkage PPC-P/PLA foams with well refined cell structures are successfully obtained, which can be attributed to the improved melt strength and the induced thermal stability. The relationship between the crosslinked-crystalline network and the foam quality are established, including CO 2 solubility, cell microstructure, and dimensional stability. PPC-P/PLA foams show refined microstructures (cell size < 50 μm, cell density > 1.5×10 9 cells/cm 3 , VER > 20), and low shrinkage (< 25%). Here, the crosslinks and crystals play multiple essential roles in increasing the melt strength and foamability of PPC-P, providing a widely applicable low-shrinkage strategy, which is crucial for the biodegradable foams.
研究领域:
高分子科学
·
材料工程
·
泡沫材料
·
可生物降解聚合物
·
聚合物共混与复合材料
✓ 已验证
产品关联
DOI
高影响因子
Journal of Proteomics
·
2014
·
IF 3.929
Feifei Xu,Ting Yang,Danjun Fang,Qingqing Xu,Yun Chen
One missing puzzle piece to study heat shock protein 27 (HSP27) in P-glycoprotein (P-gp) mediated multi-drug resistance (MDR) was the amount of HSP27 and the extent of its phosphorylation in the biological context. Liquid chromatography–tandem mass spectrometry (LC/MS/MS)-based targeted proteomics allows researchers to monitor associated proteins and their modification simultaneously and quantitatively. In this study, a targeted proteomics assay was first developed and validated for the quantification of HSP27 and its phosphorylated forms. Using this assay, the level of HSP27 was determined in non-tumoral cells MCF-10A, parental drug-sensitive cancer cells MCF-7/WT and drug-resistant cancer cells MCF-7/ADR. A decrease of HSP27 expression was observed in P-gp overexpressed MCF-7/ADR cells. A quantitative time-course analysis of both HSP27 and P-gp in doxorubicin (DOX)-treated MCF-7/WT cells also implied that HSP27 may participate in the P-gp modulation. Furthermore, stoichiometry of site-specific HSP27 phosphorylation indicated that DOX treatment rapidly induced the HSP27 phosphorylation at Ser82. Moreover, conventional analytical methods were also performed for a comparison. Biological significance LC/MS/MS-based targeted proteomics turns out to be a promising quantification approach for the study of proteins in the preclinical and clinical environment. Unfortunately, rare studies applied this technology to detect multiple associated proteins or protein modification in one experiment. This study demonstrated the potential of LC/MS/MS-based targeted proteomics to understand the cell events in a more accurate context of biological system. By the quantitative time-course analysis of HSP27 and its phosphorylated forms at sites of Ser15 and Ser82, the possible role of HSP27 in P-gp mediated MDR was suggested. Further development of targeted proteomics in future may provide more insight into signal transduction pathways upon perturbation of a protein network or changes to a panel of proposed biomarkers in a given disease state.
研究领域:
癌症研究
·
药理学
·
蛋白质组学
·
生物医学工程
✓ 已验证
DOI
PubMed
高影响因子
ACS Catalysis
·
2022
·
IF 13.7
Boyang Zhang,Kaiwei Liu,Yao Xiang,Jiaming Wang,Wenrui Lin,Mei Guo,Guijun Ma
Photo-electrochemical (PEC) and photocatalytic (PC) water splitting are promising solutions to achieve solar-powered hydrogen production. In the present work, to integrate the merits of PEC and PC techniques, a p–n conjugated two-electrode water-splitting system was miniaturized into one particle (denoted as electrode particle) for PC reactions. Specifically, a p-type Rh-doped strontium titanate (Rh:SrTiO3) photocathode material was selectively deposited on the electron-accumulated facet of a particulate n-type Mo-doped bismuth vanadate (Mo:BiVO4) photoanode with inserting a partly oxidized In@InOx interlayer as a grain binder and charge conductor. The photoexcited charge migration and accumulation were visualized through light-assisted Kelvin probe force microscopy. Benefited from efficient interfacial charge transfer and effective surface modification, visible light-driven PC overall water splitting into H2 and O2 was achieved over the prepared Mo:BiVO4/In@InOx/Rh:SrTiO3 electrode particle with an intense-light stability up to 40 h, an ambient pressure endurability from 5 to 95 kPa, and a solar-to-hydrogen energy conversion efficiency of 1.2 × 10–2%. This work develops a strategy of designing an efficient composite photocatalyst for PC overall water splitting and provides insights toward the enhancement of charge transfer efficiency across hetero-semiconductors.
研究领域:
材料科学
·
光化学
·
电化学
·
可再生能源
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）