SENSORS AND ACTUATORS A-PHYSICAL
·
2023
·
IF 4.6
Jing Li,Hai Nie,Guoyun Zhou,Yan Hong,Wei Meng,Yongkang Zhu,Qinghua Huang
Flexible, biocompatible temperature sensors are of great importance for future developments in wearable electronic skin. Herein, a high resolution, fast response, biocompatible negative temperature coefficient (NTC) temperature sensor comprised of poly (3,4-ethylenedioxythiophene): poly (styrenesulfonate) (PEDOT: PSS) and phthalocyanine copper (CuPc) is developed. The addition of CuPc with high electron mobility to PEDOT: PSS increases the effective electron transition under the action of thermal energy , and thus its thermoelectric performance of the material is improved. The packaged sensor can monitor temperature changes in the range of 20 °C to 80 °C in real time with high sensitivity (0.1940% °C −1 ), linearity (R 2 =0.994) and accuracy (0.1 °C). When the ambient temperature of the sensor changes from 25 °C to 50 °C, the response and recovery time of the sensor are ∼ 1 s. The performance of the sensor has not decreased significantly after 4 weeks of continuous operation, which validates the high reliability of the sensor in the extended working time. Furthermore, the comparison between the PEDOT: PSS/CuPc sensor and commercial infrared thermal imager on different parts of the human body temperature measurement shows that the PEDOT: PSS/CuPc sensor is applicable in electronic skin, medical detection and other fields.
研究领域:
材料科学
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生物医学工程
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产品关联
DOI
高影响因子
Crystals
·
2021
·Vol. 11
·期 5
·547
·
IF 2.589
Zengguang Tang,Liujiang Zhang,Zhenhuang Su,Zhen Wang,Li Chen,Chenyue Wang,Guoping Xiao,Xingyu Gao
In this article, CsPbI2Br perovskite thin films were spin-coated on FTO, on which CuPc was deposited by thermal evaporation. The electronic structure at the CsPbI2Br/CuPc interface was examined during the CuPc deposition by in situ X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS) measurements. No downward band bending was resolved at the CsPbI2Br side, whereas there is ~0.23 eV upward band bending as well as a dipole of ~0.08 eV identified at the molecular side. Although the hole injection barrier as indicated by the energy gap from CsPbI2Br valance band maximum (VBM) to CuPc highest occupied molecular orbital (HOMO) was estimated to be ~0.26 eV, favoring hole extraction from CsPbI2Br to CuPc, the electron blocking barrier of ~0.04 eV as indicated by the offset between CsPbI2Br conduction band minimum (CBM) and CuPc lowest unoccupied molecular orbital (LUMO) is too small to efficiently block electron transfer. Therefore, the present experimental study implies that CuPc may not be a promising hole transport material for high-performance solar cells using CsPbI2Br as active layer.
研究领域:
材料科学
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光伏器件
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表面科学
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DOI
高影响因子
MOLECULES
·
2024
·Vol. 29
·期 8
·1899
·
IF 4.2
Jun Wang,Shuang Fu,Peng Hou,Jun Liu,Chao Li,Hongguang Zhang,Guowei Wang
Utilizing solar energy for photocatalytic CO2reduction is an attractive research field because of its convenience, safety, and practicality. The selection of an appropriate photocatalyst is the key to achieve efficient CO2reduction. Herein, we report the synthesis of TiO2/CuPc heterojunctions by compositing CuPc with TiO2microspheres via a hydroxyl-induced self-assembly process. The experimental investigations demonstrated that the optimal TiO2/0.5CuPc photocatalyst exhibited a significantly enhanced CO2photoreduction rate up to 32.4 μmol·g−1·h−1under 300 W xenon lamp irradiation, which was 3.7 times that of the TiO2microspheres alone. The results of photoelectrochemical experiments indicated that the construction of the heterojunctions by introducing CuPc effectively promoted the separation and transport of photogenerated carriers, thus enhancing the catalytic effect of the photocatalyst.
研究领域:
材料科学
·
环境科学
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产品关联
DOI
PubMed
高影响因子
Functional Materials Letters
·
2023
·
IF 1.3
Meiqi Zhai,Yajie Bai,Xia Li,Fengfeng Wang,Wei-Qiang Fan,Hongye Bai
Photoelectrochemical reduction of nitrate (PEC NRR) to ammonia (NH 3 ) is a promising means with water as hydrogen source under room temperature. The construction of photoelectrode with efficient light response and reaction kinetics is the core point to achieve high NH 3 yield efficiency. Herein, a cerium-based metal organic framework (Ce-MOF) was successfully decorated on the copper phthalocyanine (CuPc). The CuPc/Ce-MOF heterostructure exhibits the ideal nitrate catalytic reduction activity, and the NH 3 yield (−0.6 V versus RHE) increases to 1.58 μ g h − 1 cm − 2 from 0.67 μ g h − 1 cm − 2 (CuPc). Besides, the cycle experiments reveal that the CuPc/Ce-MOF heterostructure has maintained good catalytic stability. This work explores the PEC NRR process mechanism of CuPc/Ce-MOF samples and provides a new idea for green NH 3 production.
研究领域:
材料科学
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电化学
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光化学
·
催化
✓ 已验证
DOI
高影响因子
Journal of Physical Chemistry C
·
2025
·
IF 3.2
Yanan Qiao,Ziqian Gao,Rui Hua,Houde She,Helin Ye,Lei Wang,Jingwei Huang,Qizhao Wang
In this study, hollow CuPc nanotubes were synthesized using a one-step solvothermal technique and loaded with TiO2 nanoparticles based on electrostatic interactions thereby overcome the inherent limitations of TiO2. The interfacial electric field formed by electrostatic coupling between CuPc and TiO2 effectively promoted spatial charge separation, as evidenced by a 12-fold enhancement in CO yield compared to pure TiO2 under visible light irradiation. Through energy band analysis and DFT calculations, the Z-type heterojunction mechanism between CuPc and TiO2 has been revealed. This mechanism facilitates the migration of photogenerated electrons from the conduction band of TiO2 to the lowest unoccupied molecular orbital of CuPc, while directing holes to migrate in the opposite direction. This spatial charge separation preserves the electrons’ high reduction capability, allowing them to participate effectively in the CO2 reduction reaction. This work highlights the potential of Z-scheme heterojunctions in designing efficient photocatalysts for CO2 reduction, offering a foundation for future research in advanced photocatalytic materials.
研究领域:
材料科学
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纳米技术
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环境科学
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物理化学
·
能量转换
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Qingchen Bai,Miao Wang,Kai Wang,Jingwei Liu,Fengyu Qu,Huiming Lin
Due to their rigid π-conjugated macrocyclic structure, organic sonosensitizers face significant aggregation in physiological conditions, hindering the production of reactive oxygen species (ROS). An acid-sensitive nanoassembly was developed to address this issue and enhance sonodynamic therapy (SDT) and emission. Initially, copper phthalocyanine (CuPc) was activated using a H 2 SO 4 -assisted hydrothermal method to introduce multiple functional groups (–COOH, –OH, and −SO 3 H), disrupting strong π–π stacking and promoting ROS generation and emission. Subsequently, negatively charged CuPc-SO 4 was incorporated into bovine serum albumin (BSA) to form CuPc-Fe@BSA nanoparticles (10 nm) with Fe 3+ ions serving as linkers. In acidic conditions, protonation of CuPc-SO 4 and BSA weakened the interactions, leading to Fe 3+ release and nanostructure dissociation. Protonated CuPc-SO 4 tended to self-aggregate into nanorods. This acidity-sensitive aggregation is vital for achieving specific accumulation within the tumor microenvironment (TME), thereby enhancing retention and SDT efficacy. Prior to this, the nanocomposites demonstrated cycling stability under neutral conditions. Additionally, the released Fe ions exhibited mimicry of glutathione peroxidase and peroxidase activity for chemotherapy (CDT). The synergistic effect of SDT and CDT increased intracellular oxidative stress, causing mitochondrial injury and ferroptosis. Furthermore, the combined therapy induced immunogenic cell death (ICD), effectively activating anticancer immune responses and suppressing metastasis and recurrence.
研究领域:
纳米技术
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生物医学工程
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癌症治疗
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材料科学
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产品关联
DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2025
·
IF 2.3
Bin Guoan,Song Jiali,Liu Yichen,Hao Longyun
In this research, an amphiphilic sodium alginate (SSA) was prepared by grafting styrene (St) onto sodium alginate (SA) to serve as a dispersant for preparing copper phthalocyanine (CuPc) pigment dispersion (SSA-CuPc). The results indicated that SSA exhibited optimal dispersibility for CuPc at 20% dosage. Compared to SA, the SSA-CuPc particle size was reduced by 63.61%, zeta potential from − 15.30 mV to − 29.16 mV. FT-IR, XPS, and TG analyses confirmed the effective binding of SSA on CuPc surface. The SSA-CuPc dispersion displayed excellent stability and compatibility in SA solution, with stability R value decreased to 5.66%. The SSA-CuPc was incorporated into SA spinning solution to fabricate dope-dyed SA fibers by wet spinning. Rheological tests revealed enhanced compatibility between SSA-CuPc and SA matrix, favorable for wet-spinning processing. Mechanical tests indicated a 35.33% improvement in elongation at break for dope-dyed SA fibers compared to original SA fibers. SEM, FT-IR, and TG analyses further verified the uniform distribution and stable existence of SSA-CuPc in SA fibers.
研究领域:
高分子科学
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材料工程
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纺织工程
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胶体与界面科学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2023
·
IF 7.2
Yajie Bai,Shuyu Gao,Wanru Xie,Zhenyuan Fang,Hongye Bai,Weiqiang Fan
Photoelectrochemical nitrate ions (NO 3 − ) reduction reaction (PEC NITRR) to produce ammonia (NH 3 ) at ambient conditions could not only solve the problem of NO 3 − pollution, but also transform the NO 3 − to hydrogen carrier (NH 3 ). Herein, we introduced Cu 2+ by construction of BiVO 4 /CuPc, effectively adsorbed target reactant NO 3 − and further promote its effective conversion to NH 3 . This unique catalyst structure leads to a desirable NH 3 yield (r NH3 = 12.98 μg h −1 cm −2 ) and Faraday efficiency (FE = 20.36%) at 0.1 V vs. RHE. Therefore, this work provides a new perspective for establishing a low energy consumption PEC NITRR to achieve sustainable transformation of pollutants.
研究领域:
环境科学
·
材料科学
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Yiyuan Tao,Shiying Fan,Xinyong Li,Jing Yang,Jingang Wang,Guohua Chen
Owing to the sluggish reaction kinetics, it is a promising yet challenging task to achieve the adequate electricity-driven catalytic oxidation of biomass-derived 5-hydroxymethylfurfural (HMF) in neutral conditions. Herein, we have prepared an elelctrocatalyst with interfacial coupling effect through in-situ growth of Cu phthalocyanine (CuPc) on Co 3 O 4 spinel (Co 3 O 4 /CuPc), which constructs an effective electrocatalytic system of HMF oxidation with overall oxidation value-added products yield and total Faraday efficiency up to 80% and 70%, respectively. The interfacial coupling effect between CuPc and Co 3 O 4 spinel improve catalytic activity by effectively boosting the interfacial charge transfer and reducing the formation energy of key *C 6 H 3 O 4 in the catalytic pathway according to the in situ Raman spectroscopy and DFT simulation. This work illustrates the significance of interfacial coupling effect for developing highly efficient electrocatalysts applied for neutral system of biomass oxidation.
研究领域:
化学
·
材料科学
·
催化反应
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2019
·
IF 3.973
Yuetai Zhao,Rui Wang,Kuanjun Fang,Yeqiang Tan,Shiquan Chen,Yan Guan,Longyun Hao
In this paper, the dispersion performance of biomacromolecule hydrolyzed cellulase from Trichoderma reesei on copper phthalocyanine (CuPc) pigment was first studied. The effect of hydrolysis time, cellulase concentration and environmental pH on the dispersion performance was investigated by particle size distribution and suspension transmittance measurement. The hydrolysis degree of cellulase was determined by FTIR, XRD, UV–vis and fluorescence spectra, potential and particle size analysis, respectively. Subsequently, the hydrolyzed cellulase was combined with sodium dodecyl sulfate (SDS) for acquiring better CuPc suspension based on their synergetic effects on dispersion. The optimal mass ratio of hydrolyzed cellulase to SDS was found to be 1:9. The resulting CuPc dispersion by this hydrolyzed cellulase/SDS composite was characterized by FTIR, TG, TEM, XRD analysis, respectively. This study demonstrated that there were strong interactions between hydrolyzed cellulase and SDS to result in synergistic dispersing effect on CuPc for better stability.
研究领域:
生物化学
·
材料科学
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产品关联
DOI
PubMed
高影响因子
FIBERS AND POLYMERS
·
2023
·Vol. 24
·期 5
·1707-1715
·
IF 2.5
Li YunJing,Wang Lei,Wang Rui,Hao Longyun
In this research, sodium alginate (SA) was first oxidized by sodium periodate to convert its 1,2-hydroxyl into aldehyde groups. Then, the cinnamamide was grafted with it through a mild Schiff reaction to get the hydrophobically modified SA (HMSA). The structure of HMSA was determined by FT-IR, 1 H-NMR, and XPS analysis. Subsequently, it was utilized to improve the dispersibility of sodium dodecyl sulfate (SDS) to copper phthalocyanine pigment (CuPc) in aqueous medium. It was found that when the addition amount accounted for 30% of SDS, HMSA could make the dispersion obtain the best settlement stability. In addition, the addition of HMSA could significantly improve the dispersion stability to different pH and temperatures. The results of Turbiscan Stability Index ( TSI ) measurement directly indicated that the TSI index of the CuPc dispersion by SDS/HMSA was lower than that by SDS alone. SDS and HMSA could form an SDS/HMSA composite through hydrophobic interactions or hydrogen bond forces to produce both steric and electric repulsive forces for better stability of CuPc dispersion.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Qianlong Yang,Haifeng Zhu,Xiaomeng Ji,Yaping Zhang,Lianqing Yu
Exploration visible-light-driven photocatalyst is imperative to resolve energy crisis. Hollow structure photocatalyst has attracted increasing attention due to its large surface area can greatly facilitate light harvesting and enrich the reaction sites. Based on this, a hollow core-shelled composite photocatalyst of Zn 0.5 Cd 0.5 S and copper phthalocyanine (CuPc) was synthesized by facile solution method. Under visible-light irradiation (λ > 400 nm), the as-prepared CuPc/Zn 0.5 Cd 0.5 S photocatalyst exhibits eminent hydrogen evolution up to 29.16 mmol/g·h without noble metal co-catalyst modification, which was 3.5 times higher than pristine hollow Zn 0.5 Cd 0.5 S nanoflower (8.42 mmol/g·h). Meanwhile, the lifetime of photo-carriers prolongs from 0.765 s (Zn 0.5 Cd 0.5 S) to 1.05 s (CuPc/Zn 0.5 Cd 0.5 S-4%) based on open-circuit potential calculation, and the apparent quantum yield reaches 6.95% at 400 nm wavelength. In addition, the photocorrosion of Zn 0.5 Cd 0.5 S phase dissolution is greatly restrained, ascribing to p-type CuPc with merits of fast holes transfer and high chemical stability. These results indicate that CuPc/Zn 0.5 Cd 0.5 S heterojunction possesses excellent visible-light absorption capacity and superior photocatalytic hydrogen evolution property. This study presents new insights for designing core-shelled hollow photocatalyst based on organic-inorganic nanoarchitectonics, which displays countless potential for future green energy harvesting.
研究领域:
材料科学
·
能源化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）