INORGANICA CHIMICA ACTA
·
2023
·
IF 2.8
Meifeng Chen,Tingting Xiao,Yuanfei Huang,Xiaosong Zhou,Jin Luo,Xunfu Zhou,Yuanyuan Ge
Research on the subject of photolysis focuses on the creation of effective non-precious metal co-catalysts. Graphitic carbon nitride (g-C 3 N 4 ) is a promising candidate for photocatalytic hydrogen generation from water. But its photocatalytic activity is limited by the slow redox reaction, high carrier recombination rate, and inadequate optical absorption. Incorporating in situ loading Ni 2 P/Cu 3 P and phosphorus doping on g-C 3 N 4 is effective in overcoming the drawbacks. Phosphorus doping reduces the band gap of g-C 3 N 4 for increased light absorption and improves the separation of photogenerated charge. Additionally, Ni 2 P/Cu 3 P heterojunctions anchored on P-doped g-C 3 N 4 (P-C 3 N 4 ) as non-noble co-catalysts boost light adsorption, enabling charge transfer and speeding the hydrogen evolution process. The resultant Ni 2 P/Cu 3 P@P-C 3 N 4 composite photocatalyst achieves an effective photocatalytic hydrogen evolution rate of 201 times greater than that of g-C 3 N 4 (12.9 μmol·h −1 ·g −1 ). This work is instructive to develop efficient g-C 3 N 4 -based photocatalysts for photocatalytic water splitting without the need for noble metals.
研究领域:
材料科学
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能源化学
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环境科学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 32
·26800-26808
·
IF 3.289
Aijun Zhou,Bin Yang,Weihang Wang,Xinyi Dai,Mingjuan Zhao,Jing Xue,Mangui Han,Cong Fan,Jingze Li
Cu3P is a potential anode material for lithium-ion batteries with its comparable gravimetric capacity, but several times higher volumetric capacity (4732 mA h cm−3) than graphite. However, the cycling stability of Cu3P is poor at low discharge potentials and high current densities. In this work, Fe addition is employed as a simple strategy to modulate the composition and phase constitution of Cu3P nanopowders synthesized by wet mechanical alloying, and thereby to tune the electrochemical performance of the anode. The addition of Fe results in a composite constitute containing Cu3P as the major phase and some other minor phases including Cu, α-Fe and FeP, which are combinationally determined by X-ray diffraction, energy dispersive X-ray spectroscopy and Mössbauer spectroscopy. Electrochemical tests reveal that both the cycling stability and the rate capability of the electrodes are improved by Fe addition. The Cu3P electrode with 10% Fe addition shows the best cell performance, with the capacity being remarkably improved by over 100%, from 82 mA h g−1 to 178 mA h g−1 after 50 cycles at 0.75C between 2.0 V and 0.5 V vs. Li/Li+. The improvement of the electrochemical performance is engendered by a synergetic effect of the microstructure change of the powders and the presence of Fe-related minor phases, leading to increased electronic conductivity as well as enhanced electrochemical reversibility of the electrode.
研究领域:
材料科学
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电化学
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纳米材料
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能源存储
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固态化学
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电池技术
✓ 已验证
DOI
高影响因子
Frontiers in Chemistry
·
2020
·
IF 3.693
Yin Yanyou,Zhang Yu,Liu Nannan,Sun Bing,Zhang Naiqing
Biomass-derived approaches have been accepted as a practical way for the design of transitional metal phosphides confined by carbon matrix (TMPs@C) as energy storage materials. Herein, we successfully synthesize P/N-co-doped carbon nanosheets encapsulating Cu3P nanoparticles (Cu3P@P/N-C) by a feasible aqueous reaction followed by a phosphorization procedure using sodium alginate as the biomass carbon source. Cu-alginate hydrogel balls can be squeezed into two-dimensional (2D) nanosheets through a freeze–drying process. Then, Cu3P@P/N-C was obtained after the phosphorization procedure. This rationally designed structure not only improved the kinetics of ion/electron transportation but also buffered the volume expansion of Cu3P nanoparticles during the continuous charge and discharge processes. In addition, the 2D P/N co-doped carbon nanosheets can also serve as a conductive matrix, which can enhance the electronic conductivity of the whole electrode as well as provide rapid channels for electron/ion diffusion. Thus, when applied as anode materials for sodium-ion batteries, it exhibited remarkable cycling stability and rate performance. Prominently, Cu3P@P/N-C demonstrated an outstanding reversible capacity of 209.3 mAh g−1 at 1 A g−1 after 1,000 cycles. Besides, it still maintained a superior specific capacity of 118.2 mAh g−1 after 2,000 cycles, even at a high current density of 5 A g−1.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
PubMed
高影响因子
International Journal of Nanomedicine
·
2023
·
IF 8
Jiawen He,Ruixiang Song,Fengfeng Xiao,Meng Wang,Liewei Wen
Purpose Photothermal therapy (PTT) is a promising anticancer treatment that involves inducing thermal ablation and enhancing antitumor immune responses. However, it is difficult to completely eradicate tumor foci through thermal ablation alone. Additionally, the PTT elicited antitumor immune responses are often insufficient to prevent tumor recurrence or metastasis, due to the presence of an immunosuppressive microenvironment. Therefore, combining photothermal and immunotherapy is believed to be a more effective treatment approach as it can modulate the immune microenvironment and amplify the post-ablation immune response.Methods Herein, the indoleamine 2, 3‐dioxygenase‐1 inhibitors (1-MT) loaded copper (I) phosphide nanocomposites (Cu3P/1-MT NPs) are prepared for PTT and immunotherapy. The thermal variations of the Cu3P/1-MT NPs solution under different conditions were measured. The cellular cytotoxicity and immunogenic cell death (ICD) induction efficiency of Cu3P/1-MT NPs were analyzed by cell counting kit-8 assay and flow cytometry in 4T1 cells. And the immune response and antitumor therapeutic efficacy of Cu3P/1-MT NPs were evaluated in 4T1-tumor bearing mice.Results Even at low energy of laser irradiation, Cu3P/1-MT NPs remarkably enhanced PTT efficacy and induced immunogenic tumor cell death. Particularly, the tumor-associated antigens (TAAs) could help promote the maturation of dendritic cells (DCs) and antigen presentation, which further activates infiltration of CD8+ T cells through synergistically inhibiting the indoleamine 2, 3‐dioxygenase‐1. Additionally, Cu3P/1-MT NPs decreased the suppressive immune cells such as regulatory T cells (Tregs) and M2 macrophages, indicating an immune suppression modulation effect.Conclusion Cu3P/1-MT nanocomposites with excellent photothermal conversion efficiency and immunomodulatory properties were prepared. In addition to enhanced the PTT efficacy and induced immunogenic tumor cell death, it also modulated the immunosuppressive microenvironment. Thereby, this study is expected to offer a practical and convenient approach to amplify the antitumor therapeutic efficiency with photothermal-immunotherapy.
研究领域:
肿瘤学
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纳米技术
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免疫疗法
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Mengxiao Zhao,Tian Fang,Liping Ni,Yaping Zhu,Ruili Zhang,Ping Chen,Anjian Xie,Yuhua Shen
Copper phosphide has shown remarkable development potential in the anode materials of lithium ion batteries (LIBs) due to its high mass/volume ratio capacity. Nevertheless, the low conductivity and volumetric expansion in the cycling process restrict its practical application. Herein, we ingeniously designed and successfully prepared copper phosphide (Cu 3 P)@carbon (C) nanocomposite with multi-stage pore inverse opals (Cu 3 [email protected] MSPIOs), including possessed the ordered macropores with the mean aperture of ∼100 nm induced by polystyrene (PS) sphere templates and the mesoporous structure with the pore size range of 3.0-9.5 nm and 16–27 nm derived from metal-organic framework (MOF) precursor. Compared to the Cu 3 [email protected] particles prepared without PS sphere templates, the Cu 3 [email protected] MSPIOs as the anode materials demonstrated exceptional lithium storage performance. At a high current density of 2 A g -1 , the discharge specific capacity of Cu 3 [email protected] MSPIOs was 295 mA h g -1 in the 1st cycle while that dropped to 204 mA h g -1 during the 2nd one, and then gradually stabilized. After 1500 cycles, the discharge specific capacity can still reach to 166.3 mA h g -1 , maintaining 81% capacity compared to the 2nd discharge specific capacity, which indicates the Cu 3 [email protected] MSPIOs as the anode material presented good cycling stability. Apparently, the multi-stage pore structure, which can effectively resolve the volumetric change problem during lithium ion (Li + ) intercalation/deintercalation as well as facilitate contact between electrolyte and anode, is primarily responsible of the superior Li-ion storage property of Cu 3 [email protected] MSPIOs. At the same time, MOF derived carbon can improve electrical conductivity, accelerate the formation of a stable solid electrolyte interface membrane and also provide buffer layers to further alleviate volumetric expansion.
研究领域:
材料科学
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电化学
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储能技术
✓ 已验证
产品关联
DOI
高影响因子
Sustainable Energy & Fuels
·
2022
·Vol. 7
·期 1
·74-83
·
IF 6.813
Hongliang Yu,Jiwei Wang,Xianming Wang,Ningbo Yu,Xunxing Zuo,Yanan Xue,Ning Cai,Jie Liu,Jianzhi Wang,Faquan Yu
Designing nonprecious but efficient electrocatalysts for the hydrogen evolution reaction (HER) in alkaline solution still remains a significant challenge. Herein, we report the NiMoP nanosheets on hollow Cu3P nanotube arrays on the Cu foam (NiMoP@Cu3P/CF) via solution immersion, hydrothermal reactions and phosphorization. By virtue of its unique core–shell open tubular structure, NiMoP@Cu3P/CF shows large specific surface area and mesoporous, short diffusion paths, which facilitates mass transport and easy accessibility of water, resulting in a superior HER activity in 1.0 M KOH. NiMoP@Cu3P/CF only requires 81 mV and 226 mV of overpotential when the current density is 10 mA cm−2 and 100 mA cm−2 for HER in 1.0 M KOH, respectively, with a low Tafel slope (133.1 mV dec−1) and as well as superior durability. Our work provides a new idea to design a powerful electrocatalyst for HER, which will be highly expected for various practical applications.
研究领域:
材料科学
·
电化学
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纳米技术
·
催化
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Xueting Li,Guimin Wang,Chunmei Lv,Xiuwen Wang,Yue Liu,Haijing Yan,Zilin Zhang,Yanqing Jiao
Efficient non-Pt electrocatalysts for the alkaline hydrogen evolution reaction (HER) are necessary for industrial water electrolysis. Cu-based materials are cheaper alternatives, but their performances are far from satisfactory due to slow water dissociation kinetics and weak Gibbs free energy of hydrogen adsorption (ΔGH*). Herein, we propose to construct multiple sites with different activation functions in response to sluggish alkaline HER kinetics. A multi-interfacial, ultrasmall V-doped MoP and Cu3P heterostructure (V-MoP/Cu3P) was successfully fabricated by confined conversion of a V–Mo bimetallic polyoxometalate (POM) cluster embedded in a Cu-based metal–organic framework (MOF). The spatial separation of each POM cluster by the MOF and the inherent structure of each [VO6] connecting four [MoO6] octahedrons enable precise V incorporation in the MoP lattice and multi-interface coupling of the MoP and Cu3P heterojunction. As a result, the interfacial charge redistribution occurs and the d-band centers are finely tuned, triggering a multisite synergism to encourage the adsorption and activation of H2O, H–OH* bond breaking, and H2 release. Consequently, V-MoP/Cu3P exhibits significantly enhanced HER activity, even superior to the commercial 20% Pt/C catalyst at current densities exceeding 155 mA cm–2, which indicates the feasibility of the V-MoP/Cu3P catalyst as cheaper alternatives to Pt-based catalysts in industrial applications. This work provides new insight for the design of low-cost, high-abundance HER catalysts via multi-interface engineering and heteroatom doping to trigger multisite synergies.
研究领域:
电化学
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催化
·
材料科学
·
纳米技术
·
能量转换
·
表面科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Man Guo,Meijiao Xu,Yuan Qu,Chuan Hu,Puxuan Yan,Tayirjan Taylor Isimjan,Xiulin Yang
Developing high-efficient non-noble metal-based catalysts for oxygen reduction reaction (ORR) is an inevitable way to improve Zinc-air batteries' performance (ZAB). Herein, we report a Cu 3 P/MoP electrocatalyst (Cu 3 P/MoP@C) supported by hollow-porous-carbon nanospheres displaying high electrocatalytic activity and exceptional durability in alkaline media. The optimized ORR catalyst outperformed the benchmark Pt/C (20 wt%) and most recently reported Cu-/Mo-based catalysts in various aspects. X-ray photoelectron spectroscopy reveals that the excellent ORR performance originates from the charge transfer between of Cu 3 P and MoP species. Besides, the large specific surface area of Cu 3 P/MoP@C with mesoporous structure is particularly advantageous for the inner surface contact with electrolyte to accelerate ORR kinetics. Moreover, Cu 3 P/MoP@C also exhibits a large power density of 156 mW cm −2 , a high round-trip efficiency, and superb stability over 231 h superior to Pt/C in the ZAB. This work offers a scalable and promising approach for the rational fabrication of hollow porous structure materials.
研究领域:
电化学
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材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Ke Zhang,Zhiping Xiong,Shumin Li,Bo Yan,Jin Wang,Yukou Du
Herein, we reduced PdCl 4 2− ions on the synthetized cuprous phosphide/reduced graphene oxidation (Cu 3 P/RGO) hybrids to improve the catalytic activity and durability of Pd nanocrystals . In comparison with commercial Pd/C and Pd/RGO catalysts, the Pd/Cu 3 P/RGO exhibit high electroactivity and durability toward alcohol oxidation in alkaline medium. The enhanced catalytic performance of Pd/Cu 3 P/RGO is due to the high electrochemically active surface area, which can be ascribed to the interactions between Cu 3 P/RGO and Pd nanocrystals . The investigation of Cu 3 P/RGO as a promoter in alcohol electrooxidation will offer an opportunity in the field of direct alcohol fuel cells (DAFCs).
研究领域:
材料科学
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电化学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 20
·e01019
·
IF 2
Siqi Wang,Yazhou Wang,Yonggang Ji,Zhenye Li,Yueli Dai
Graphical This study investigated the reactivity of nickel phosphide, copper phosphide, and cobalt phosphide catalysts in the hydrodeoxygenation of furfural to 2-methylfuran. Appropriate acidic and adsorbent configurations were employed to facilitate the production of 2-methylfuran. Among the catalysts tested, the copper phosphide catalyst exhibited the highest selectivity for 2-methylfuran. A series of transition metal (Ni, Cu, and Co) phosphides were prepared by temperature programmed reduction method. The effect of the metal species and the initial P/Cu molar ratios on the catalytic activity of furfural hydrodeoxygenation was investigated, and the reaction conditions were optimized. Complete conversion of furfural was achieved under conditions of 220 °C and 15 bar for 4 h over Ni 2 P, CoP, or Cu 3 P catalysts. Notably, a selectivity of 95% of 2-methylfuran was attained when the Cu 3 P-3 was employed as a catalyst. The experimental results showed that a suitable P/Cu molar ratio could promote the conversion of the intermediate furfuryl alcohol to 2-methylfuran while avoiding the generation of overhydrogenation products. Under the optimal reaction conditions, the Cu 3 P-3 catalyst could be used for four times with only a slight decrease in catalytic performance.
研究领域:
化学工程
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催化科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 14
·8368-8375
·
IF 10.733
Gangyong Li,Jiguo Tu,Mingyong Wang,Shuqiang Jiao
Rechargeable aluminum-ion batteries (AIBs), using a room temperature ionic liquid as the electrolyte and metallic Al as the anode, are very promising alternatives for large-scale electricity storage due to abundant aluminum sources, their high specific capacity, and their high safety. Cathode materials with both high capacity and low cost are of great importance for the achievement of such applications. Herein, copper phosphide (Cu3P) which is synthesized via a high-energy ball milling method is utilized for the first time as a novel cathode material for AIBs. It delivers high initial charge and discharge capacities of 139.1 and 73.8 mA h g−1 at 50 mA g−1, respectively, but shows poor cycling performance. After coating with acetylene black, the Cu3P/C composite exhibits a dramatically enhanced cycling stability. The charge–discharge mechanism of Cu3P is investigated using ex situ X-ray diffraction and X-ray photoelectron spectroscopy, which show that AlCl4− anions intercalate into Cu3P in the initial charge process, leading to the oxidation of Cu and P species. In the discharge process, the valence of the oxidized Cu remains unchanged while P is partially reduced. These findings are of great significance for the fundamental understanding of the Cu3P cathode for AIBs, as well as the further development of novel cathode materials of AIBs.
研究领域:
材料科学
·
电化学
·
储能
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2024
·
IF 4.3
Fang Li,Jing Cao,Huiqin Yu,Haili Lin,Shifu Chen
The electrocatalytic overall urea splitting can achieve the dual goals of urea treatment and hydrogen energy acquisition. Herein, we exploited the principle of precipitation dissolution equilibrium to obtain bimetallic phosphide FeP/Cu3P/CF for the simultaneous oxidation of urea and reduction of water and comprehensively reveal the inherent molecular thermodynamic mechanisms on the surface of catalysts. The excellent electrochemical performance can be derived from the super water affinity and synergistic effect. Especially, the theoretical calculation unveils that the synergistic effect between FeP and Cu3P can lower the activation energy required for urea electrooxidation, thereby promoting urea splitting. In situ differential electrochemical mass spectrometry (in situ DEMS) measurements further demonstrated that urea oxidation on FeP/Cu3P/CF proceeded according to the intramolecular mechanism. This work has laid the foundation for constructing highly efficient superhydrophilic bifunctional electrocatalysts.
研究领域:
化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）