JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Xi Wang,Fengyun Mao,Yun Gong
Prussian Blue Analogs (PBAs) stood out as promising candidates for sodium metal batteries cathode, leveraging their unique open-framework architecture, straightforward synthesis, and cost-effectiveness. However, PBAs were plagued by limited capacity arising from insufficient redox-active sites. Additionally, iodine cathode with high theoretical capacity (211 mAh g −1 ) suffer from poor practical performance due to the shuttle effect of polyiodides and slow kinetic conversion. The complex cathode to construct conversion reaction might be a better method to improve the capacity and easy to implement. Herein, we reported the design of a Cu-based PBAs/iodine composite cathode, where the PBAs framework serves as an iodine host and a conversion reaction mechanism via copper‑iodine coupling within PBAs cavities was established to enhance capacity. Various characterization results demonstrated that the Cu-based PBAs framework enabled favorable iodine encapsulation and facilitated Cu I coupling, enabling reversible conversion during charge/discharge progress. Density Functional Theory (DFT) simulations confirmed that the complexation of Cu-based PBAs with iodine represents a thermodynamically favorable process. Thereby, the assembled full battery achieved a high specific capacity of 276.4 mAh g −1 at 0.1 A g −1 and a capacity retention of 80.9 % after 1000 cycles at 0.3 A g −1 . This work introduced a novel Cu-based PBAs/iodine complexed conversion cathode, offering an innovative insight for the development of high-performance sodium metal batteries.
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Journal of Materials Chemistry C
·
2022
·Vol. 10
·期 36
·13040-13046
·
IF 8.067
Yi Huang,Jin Tan,Gang Gao,Jianmei Xu,Ling Zhao,Wei Zhou,Qing Wang,Shuoguo Yuan,Jian Sun
Currently, ultraviolet photodetectors attract extensive attention from people all over the world due to their applications in solar ultraviolet radiation detection, flame detection, ozone monitoring, missile tracking, and environmental monitoring. A heterojunction is an essential aspect for fulfilling the demand for high-performance self-powered ultraviolet photodetectors. However, it is still very challenging to achieve both good electrical property and transparency for p-type semiconductors and conductors especially at low preparation temperature. This work reports the fabrication of ultrathin, ultra-high-transparency and very smooth CuI films at room temperature by the copper film iodination method, whose figure of merit (FoM) far exceeds those of most of the typical p-type oxides. The obtained p-type CuI films (p-CuI) were fabricated on an n-type Si (n-Si) substrate to construct a heterojunction photodetector. The p-CuI/n-Si photodetector has excellent optoelectronic properties in self-powered mode, including a large responsivity and detectivity (123.3 mA W−1, 5.7 × 1012 Jones), and a fast response speed (rise/decay time of 90 μs/140 μs), which are overall better than those of all types of CuI-based self-powered photodetectors. In addition, the CuI film deposited on the flexible substrate was applied in a CuI photodetector with a metal–semiconductor–metal structure, exhibiting good optoelectronic properties and bending stability, which shows promising applications in transparent, flexible, wearable electronic and optoelectronic devices.
研究领域:
光电子学
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材料科学
·
半导体器件
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光电探测器
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柔性电子学
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高影响因子
JOURNAL OF POROUS MATERIALS
·
2024
·Vol. 31
·期 3
·913-922
·
IF 2.5
Wu Chengqiang,Li Yingping,Ma Yongping,Lei Yuexiang,Wang Meijing,Chen Zhen
A novel loaded copper ion catalyst, Cu/MCM-41-SH, was synthesized using CuI-modified thiol-functionalized MCM-41 silica-based materials, and the prepared catalysts were characterized by XPS, FT-IR, SEM and N 2 adsorption–desorption techniques. The XPS results indicated that the chemical valence of the copper that adsorbed on the CuI/MCM-41-SH surface was + 1 valence. N 2 adsorption–desorption showed that the adsorption–desorption isotherms of both MCM-41 and CuI/MCM-41-SH materials were type IV with H4-type hysteresis loops, and the pore size and specific surface area of the materials were reduced. This work demonstrates that that when the reaction time was 2 h, the reaction temperature was 80 ℃ and the catalyst dosage was 100 mg, the conversion of tetralin was obtained as 92.63% and the selectivity of α-tetralone was 84.84%. The catalyst showed good reusability in the three recovery experiments. These results show that the catalyst has potential applications for green and sustainable development.
研究领域:
材料科学
·
催化
·
纳米技术
·
环境化学
·
绿色化学
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Journal of Materials Chemistry C
·
2022
·Vol. 11
·期 1
·127-133
·
IF 8.067
Yong Zhang,Hui Liu,Shuai Liu,Qian Gong,Yushen Liu,Dan Tian,Lixing Kang
The p-CuI/n-SrTiO3 heterojunction photodetector (PD) is constructed based on a SrTiO3 wafer, which is covered with a CuI film via the vacuum thermal evaporation method. Compared with the SrTiO3 (STO) device, the CuI/STO PD exhibits significantly enhanced photocurrent. Furthermore, the CuI/STO PD presents excellent self-powered characteristics, including high on/off ratio (7 × 103) and fast response speed (0.6/3.3 ms) under 400 nm light irradiation. In particular, the CuI/STO PD shows a great narrowband photoresponse (FWHM ∼ 27 nm) at zero bias because of the proper and compatible bandgap of CuI and STO. More importantly, the CuI/STO device demonstrates a transparency of 70% over the entire visible light region and blocks 99.9% UV light (200–385 nm). This work provides an effective strategy to realize power-free, filter-free and UV-free PDs for many special applications.
研究领域:
光电子学
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光电探测器
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材料科学
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半导体器件
·
薄膜技术
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高影响因子
LANGMUIR
·
2022
·
IF 4.331
Zhiliang Jin,Xiaohong Li,Teng Li,Youji Li
Graphdiyne (g-CnH2n–2) is a new carbon material composed of sp and sp2 hybrid carbon atoms. Since the synthesis by Li’s team, graphdiyne has been widely studied in other fields because of its excellent properties. In this paper, graphdiyne was synthesized from copper-containing materials and the composite GDY/CuI/MIL-53(Al) S-scheme heterojunction is prepared for photocatalytic cracking of water to produce hydrogen. First, GDY/CuI was prepared by organic synthesis, and then GDY/CuI was anchored on the surface of MIL-53(Al) by in situ ultrasonic stirring. After the continuous optimization of experimental conditions, the final hydrogen evolution rate is much higher than that of MIL-53(Al). This efficient photocatalytic performance can be attributed to the S-scheme heterojunction formed by the unique energy band arrangement. At the same time, the mechanism of charge transfer was demonstrated by in situ irradiation X-ray photoelectron spectroscopy. The strong interaction among the three strongly promotes the separation and transfer of photogenerated electron–hole pairs.
研究领域:
材料科学
·
能源化学
·
光催化技术
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高影响因子
ANALYTICA CHIMICA ACTA
·
2016
·
IF 4.712
Changhui Li,Xiaoli Liu,Yuanyuan Zhang,Yun Chen,Tianyu Du,Hui Jiang,Xuemei Wang
A high-sensitive nonenzymatic hydrogen peroxide (H 2 O 2 ) biosensor based on cuprous iodide and graphene (CuI/Gr) composites has been explored for the detection of H 2 O 2 released by living cells and monitoring the oxidative stress of cells under excellular stimulation. The biosensor properties were evaluated by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), amperometric i-t curve, and the redox-competition mode of scanning electrochemical microscopy (SECM). Our observations demonstrate that the CuI/Gr nanocomposites modified glassy carbon electrode (GCE) exhibits excellent catalytic activity for H 2 O 2 with relatively low detection limit and a wide linear range from 0.5 μM to 3 mM. Moreover, the redox-competition mode of SECM imaging study further illustrates the improved electrochemical catalytic capability for H 2 O 2 reduction with CuI/Gr nanocomposites deposited on graphite electrode. Hence, the as-prepared nonenzymatic H 2 O 2 biosensor could be used to detect H 2 O 2 release from different kinds of living cells under stimulation while eliminating the interference of ascorbic acid .
研究领域:
生物化学
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分析化学
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材料科学
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高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 9
·期 35
·2201688
·
IF 6.389
Liu-Qin Zhang,Hua-Li Li,Xiao-Hu Zhang,Qiu-Ping Li,Shu-Wen Luo,Fa-Qian Liu
Metal–organic gels or metallogels (MOGs), which usually made up with metal ions and organic ligands, are promising in the area of medicine, environment, and biology. Herein, a new metal–organic gel containing Cu + (Cu-MOG-5) is prepared at room temperature using 2-amino-5-mercapto-1,3,4-thiadiazole (AMT) and CuI. Considering the excellent low surface energy characteristics of polydimethylsiloxane (PDMS), the as-prepared Cu-MOG-5 is infused into porous PDMS to obtain Cu-MOG-5/PDMS coating, which combines the bactericidal properties of Cu + containing hydrogels and the low surface energy of PDMS. The morphology of the Cu-MOG-5 and Cu-MOG-5/PDMS coating is investigated by FE-SEM, and the structure of the new Cu-MOG-5 is verified by FT-IR, 1 H NMR, XPS, EDS, and elemental analysis. The antibiofouling properties are assessed using Escherichia coli ( E. coli ) and mussel. The results show that the newly prepared Cu-MOG-5/PDMS coating exhibits superior antibiofouling performance because of the synchronous action of hydrogel including Cu + and PDMS.
研究领域:
材料科学
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生物学
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环境科学
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高影响因子
Asian Journal of Organic Chemistry
·
2021
·Vol. 10
·期 10
·2625-2631
·
IF 3.319
Canhua Zhou,Jiamin Lv,Weiping Xu,Hanbin Lu,Terumasa Kato,Yan Liu,Keiji Maruoka
A new approach for highly selective monoalkylation of active methylene and related derivatives using various types of alkylsilyl peroxides in the presence of copper catalysts under mild conditions has been developed to a synthetically useful level. This approach has a wide substrate scope in terms of both active methylene compounds and alkylsilyl peroxides. In addition, nitroalkanes can also be employed for a copper-catalyzed selective monoalkylation with alkylsilyl peroxides. The participation of radical species was proposed in the present monoalkylation reactions by the mechanistic study.
研究领域:
有机化学
·
合成化学
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高影响因子
ACS Applied Electronic Materials
·
2025
·
IF 4.7
Qing Wang,Xueping Zhao,Chong Wu,Qingyin Feng,Hai Zhang,Pucun Bai
High-mobility p-type transparent conductive films (TCFs) are crucial for transparent optoelectronic devices. This work addresses this gap by growing high-quality γ-CuI films on c-Al2O3 substrates via physical vapor transport (PVT), with a focus on the role of deposition temperature. The temperature significantly influences the structural, morphological, optical, and electrical properties of the films. The method delivers an ultrahigh deposition rate of 371 nm/min at 490 °C. The films exhibit (111) out-of-plane orientation and >85% average transmittance (400–800 nm). Structural and morphological analyses reveal temperature-driven growth mode from porous polycrystalline islands to step-flow triangular domains and merged hexagonal structures, which is governed by domain epitaxy. The φ-scan and transmission electron microscopy (TEM) results established the epitaxial relationship as γ-CuI <112̅> (111) // Al2O3 [1̅1̅20] (0001). Electron backscatter diffraction (EBSD) revealed two crystallographic domains that were rotated by 60° relative to each other. The hole mobility increased with deposition temperature, yielding a high hole mobility of 19 cm2/V·s at 490 °C with a carrier concentration of 1.86 × 1017/cm3. These findings indicate that the deposition temperature is critical for achieving high-mobility films. Furthermore, PVT affords a scalable and efficient epitaxy route to p-type transparent conductors, thereby enabling high-performance transparent optoelectronic devices.
研究领域:
材料科学
·
半导体物理
·
薄膜技术
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光电子学
·
凝聚态物理
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International Journal of Electrochemical Science
·
2025
·
IF 2.4
Mian Zhao,Mengjiao Li,Keqiang Ding,Ying Bai,Xiaoxuan Liang,Yiqing Chen,Jiawen Bao,Hui Wang
A novel finding, that the electrochemical performance of titanium dioxide (TiO 2 ) can be significantly promoted through treating the mixture containing TiO 2 and cuprous iodide (CuI) thermally, is presented for the first time in this work. Firstly, a mixture containing TiO 2 and CuI is prepared carefully, in which the molar ratio of Ti and Cu is 3:1. Secondly, the obtained mixtures are thermally treated at 360 °C, 420 °C and 480 °C in air for 2 h, respectively, producing sample a, b and c. As revealed by the XRD and XPS results, TiO 2 and CuO are the principal components of all the thermal treatment products. Above all things, when being utilized as anode materials of lithium ion batteries (LIBs), all the thermal treatment products exhibit superior battery performances relative to that of the pure TiO 2 , for instance, the initial discharge capacities of sample a, b and c at 0.1 A g -1 are about 276.1, 422.7 and 294.9 mAh g -1 , respectively, being about 1.25, 1.91 and 1.33 times higher than that of pure TiO 2 (221.0 mAh g -1 ). Particularly, the high rate performances of all the thermal treatment products, especially sample b, are still better than the pure TiO 2 . For example, the discharge capacity of sample b at 1.0 A g -1 after 100 cycles is tested to be 84 mAh g -1 , being about 1.5 times higher than that of pure TiO 2 (56 mAh g -1 ). The reduction in the charge transfer resistance and the increase in the cyclic voltammetry peak area are analyzed to be the major reasons endowing all the thermal treatment products especially sample b a greatly promoted battery performance. Showing the fact, that thermally treating the mixture having TiO 2 and CuI is a practical technique to significantly promote the battery performance of TiO 2 , is the principal dedication of this preliminary work.
研究领域:
材料科学
·
电化学
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高影响因子
Materials Today Chemistry
·
2023
·
IF 7.3
Yibo Niu,Yu Wang,Linli He,Yujie Wang,Huizhen Ma,Nan Li,Danli Xie,Jianshan Ye,Ying Ma
Cathodic photoelectrochemical (PEC) bioanalysis has been attracting great interest due to its excellent anti-interference capability. As a p-type wide energy band gap semiconductor, CuI is regarded as an ideal material for the construction of photocathodes, while its poor stability and narrow light absorption range limit its application as a photoelectrode in PEC sensing. Herein, we report a simple in-situ growth strategy to synthesize CuI/Porphyrin-based graphdiyne (PDY) p-n heterojunction as a photocathode. CuI crystals were firstly deposited on the ITO glass surface via the electrochemical deposition , and CuI could catalyze the in-situ Glaser coupling reaction of 5,10,15,20-tetra(4-ethynylphenyl) porphyrin (TEPP), allowing the growth of PDY film on the CuI crystal surface and forming the p-n heterojunction photocathode. The as-prepared PDY film plays a crucial role in the significant enhancement of PEC performance because of its intense light absorption, and the formation of CuI/PDY p-n heterojunction can efficiently promote the transportation of photogenerated carriers between CuI and PDY thanks to the excellent electrical conductivity and high carrier mobility of highly π-conjugated PDY. After the growth of PDY, the photocurrent response of PDY/CuI/ITO is almost seven folds higher compared to that of CuI/ITO. Owing to the selective Cu–S bond interaction between l -cysteine (L-Cys) and Cu + , a PEC sensor for the L-Cys determination is developed with a broad linear range from 0.05 to 1.2 μM and a limit of detection (LOD) of 0.03 μM.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Haoran You,Mingkun Wu,Bihui An,Chenhao Zhang,Mengkui Tian
Electrochemical conversion of CO 2 to value-added chemicals is a promising carbon recycling strategy for mitigating CO 2 emissions from fossil fuels and addressing associated environmental challenges. In copper-based catalysts, Cu + species promote the reduction of CO 2 to multi‑carbon products, such as ethylene (C 2 H 4 ). However, under typical electroreduction, Cu + is prone to reduction to Cu 0 , leading to degradation of catalytic performance and poor stability. Herein, we present an interfacial engineering strategy to design a CuI-Cu 2 O composite catalyst with densely packed Cu 2 O nanoparticles on tetrahedral CuI substrates and self-stabilizing Cu + ability for selective CO 2 electroreduction to C 2 H 4 . Density functional theory (DFT) calculations and spectroscopic characterizations demonstrated that the CuI-Cu 2 O catalyst combined the efficient generation of *CO intermediates by Cu 2 O with the efficient C C coupling functionality of CuI, and the iodide ions within the catalyst autonomously modulated the copper oxidation state to stabilize Cu + , collectively enhancing CO 2 -to-C 2 H 4 selectivity. Consequently, the CuI-Cu 2 O catalyst achieved a C 2 H 4 Faradaic efficiency of 62.98 ± 1.05% along with a high current density of 275.16 mA·cm −2 at −0.97 V vs. the reversible hydrogen electrode (RHE). In the stability test, the CuI-Cu 2 O catalyst operated stably for over 16 h at a current density of approximately 279.95 mA·cm −2 . This study provides a catalyst design strategy that simultaneously enhances *CO supply and C C coupling while autonomously modulating the active Cu + state, offering an effective approach for achieving stable and highly selective CO 2 -to-C 2 H 4 conversion.
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