Synthetic Metals最新文献_第2页

Modulating the two photon absorption features of aza-BODIPY derivatives depending on the electron-donating substituents in near-IR region 利用给电子取代基在近红外区调制aza-BODIPY衍生物的双光子吸收特性

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-14 DOI: 10.1016/j.synthmet.2025.117887

Anıl Doğan , Halil Yılmaz , Ahmet Karatay , Elif Akhüseyin Yıldız , Gökhan Sevinç , Bahadir Boyacioglu , Huseyin Unver , Mustafa Hayvali , Ayhan Elmali

{"title":"Modulating the two photon absorption features of aza-BODIPY derivatives depending on the electron-donating substituents in near-IR region","authors":"Anıl Doğan , Halil Yılmaz , Ahmet Karatay , Elif Akhüseyin Yıldız , Gökhan Sevinç , Bahadir Boyacioglu , Huseyin Unver , Mustafa Hayvali , Ayhan Elmali","doi":"10.1016/j.synthmet.2025.117887","DOIUrl":"10.1016/j.synthmet.2025.117887","url":null,"abstract":"<div><div>Aza-BODIPY derivatives are promising candidates for optical applications due to their tunable two-photon absorption (TPA) properties in the near-infrared (NIR) region. In this study, symmetrical aza-BODIPY compounds were synthesized and functionalized with electron-donating groups at the 2,6-positions to investigate their impact on TPA and photophysical properties. The compounds exhibited notable hypsochromic shifts and fluorescence quenching, with the highest TPA cross-section observed for <strong>BOD1</strong> (37 GM) at 1000 nm wavelength due to efficient charge transfer characteristics. Density Functional Theory (DFT) calculations provided insights into the electronic structures, revealing that <strong>BOD4</strong> was the most stable, exhibiting complex electronic transitions. The findings suggest that these aza-BODIPY derivatives are suitable candidates for NIR imaging, optical power limiting, and two-photon photodynamic therapy. This study demonstrates the potential of structural modifications to fine-tune TPA properties, paving the way for advanced optical applications.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"313 ","pages":"Article 117887"},"PeriodicalIF":4.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144072500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of the presence of thioindigo in photosensitizers based on phenothiazine: Synthesis and photovoltaic evaluation in DSSCs 噻吩噻嗪类光敏剂中硫代靛蓝的存在研究：DSSCs的合成及光伏评价

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-09 DOI: 10.1016/j.synthmet.2025.117885

Mozhgan Hosseinnezhad , Kamaladin Gharanjig , Sohrab Nasiri , Mohsen Fathi

引用次数: 0

Research on the protection of black phosphorus (BP) by the monolayer 7,7,8,8-tetracyanoquinodimethane (TCNQ) 单层7,7,8,8-四氰喹诺二甲烷（TCNQ）对黑磷（BP）的保护作用研究

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-09 DOI: 10.1016/j.synthmet.2025.117884

Yuan Zhao , Xiaoliang Liu , Baopeng Yang , Jianhua Zhang , Han Huang , Haipeng Xie , Dongmei Niu , Yongli Gao

{"title":"Research on the protection of black phosphorus (BP) by the monolayer 7,7,8,8-tetracyanoquinodimethane (TCNQ)","authors":"Yuan Zhao , Xiaoliang Liu , Baopeng Yang , Jianhua Zhang , Han Huang , Haipeng Xie , Dongmei Niu , Yongli Gao","doi":"10.1016/j.synthmet.2025.117884","DOIUrl":"10.1016/j.synthmet.2025.117884","url":null,"abstract":"<div><div>Black phosphorus (BP) has attracted widespread attention in multiple research fields due to its excellent optoelectronic properties, such as adjustable direct bandgap, optical and electrical anisotropy. However, the poor air stability of BP limits its practical application. To protect BP through physical isolation and chemical passivation, a strong n-type organic semiconductor, 7,7,8,8-tetracyanoquinodimethane (TCNQ) was deposited on BP. The protective effect and the underlying mechanisms have been comprehensively investigated through various interface characterization techniques and density functional theory (DFT) calculations. It is found that the high adsorption energy (AE) between TCNQ and BP leads to the desorption of TCNQ from BP surface and TCNQ forms a dense monolayer (ML) film on BP in a stable lying configuration, which can protect BP from air exposure to some extent. Due to the higher work function (WF) of TCNQ compared to BP, the electron of BP at the interface are transferred to TCNQ through the quinone ring, resulting in a redistribution of electrons near the quinone ring of TCNQ and a shift of the C <em>1 s</em> peak as well as the Raman peaks of C-C and C-C-H. The electron transfer from BP to TCNQ not only leads to an upward bending of the conduction band (CB) of BP at the interface, increasing the electron transfer barrier (ETB) between BP and O<sub>2</sub>, but also depletes the lone pair electrons of BP at the interface, protecting the shallow layer BP from oxidation and degradation. The ML of TCNQ and the shallow layer of BP significantly delays the contact between inner layer of BP and air, prolonging the stability of BP in air for more than 10 days. In addition, it is also confirmed that ML TCNQ has the minimal impact on the intrinsic structure and properties of BP. This work provides a new strategy for the protection and application of BP.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117884"},"PeriodicalIF":4.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polyaniline-encapsulated carbon-coated nickel zinc ferrite: A hybrid composite for enhanced absorption-dominant EMI shielding 聚苯胺包封碳包覆镍锌铁氧体：一种增强吸收主导型电磁干扰屏蔽的杂化复合材料

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-08 DOI: 10.1016/j.synthmet.2025.117883

Numrah Sultan, Khaqan Shati, Ubaid Ur Rehman, M. Nadeem

{"title":"Polyaniline-encapsulated carbon-coated nickel zinc ferrite: A hybrid composite for enhanced absorption-dominant EMI shielding","authors":"Numrah Sultan, Khaqan Shati, Ubaid Ur Rehman, M. Nadeem","doi":"10.1016/j.synthmet.2025.117883","DOIUrl":"10.1016/j.synthmet.2025.117883","url":null,"abstract":"<div><div>The rapid growth of communication technologies necessitates the development of efficient electromagnetic interference (EMI) shielding materials. This work investigates an unconventional and innovative conducting polymer-based composite (CPC) material for EMI shielding, comprising of carbon coated nickel zinc ferrite (C@NZF) and polyaniline (PANI). The CPC is synthesized sequentially by a sol-gel, hydrothermal, and in-situ polymerization process. The ratio of C@NZF:ANI is kept 1:9, resulting in a lightweight composite with a facile synthesis process. Morphology and phase identification of PANI-C@NZF is analyzed using SEM and XRD analysis. FTIR is performed for functional group identification of the composite. Notably, the composite demonstrates an absorption dominant EMI shielding effectiveness (SE) of 27 dB in X-band, translating to 99.8 % signal attenuation. The average absorption coefficient (A) in the complete frequency range (8.2–12.4 GHz) is found to be 0.63. The high absorption is attributed to the combined effects of dielectric and magnetic properties of PANI and C@NZF. Moreover, the encapsulation of C@NZF by PANI provides multiple interfaces which results in electromagnetic signal attenuation by interfacial polarization. These findings suggest that the PANI-C@NZF composite possesses promising potential as an absorption-based EMI shielding material for applications in EM pollution reduction, telecommunication and defense.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117883"},"PeriodicalIF":4.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143927402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Self-repairing tin-based perovskite solar cells using 2,4-dichlorophenylhydrazine hydrochloride as dopant 以2,4-二氯苯肼盐酸盐为掺杂剂的自修复锡基钙钛矿太阳能电池

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-04 DOI: 10.1016/j.synthmet.2025.117882

Wenjin Zeng , Enzhi Li , Jiahao Li , Lu An , Yuting Shi , Qiaoli Niu , Kasim Ocakoglu , Tao Yang , Xinwen Peng , Ruidong Xia

{"title":"Self-repairing tin-based perovskite solar cells using 2,4-dichlorophenylhydrazine hydrochloride as dopant","authors":"Wenjin Zeng , Enzhi Li , Jiahao Li , Lu An , Yuting Shi , Qiaoli Niu , Kasim Ocakoglu , Tao Yang , Xinwen Peng , Ruidong Xia","doi":"10.1016/j.synthmet.2025.117882","DOIUrl":"10.1016/j.synthmet.2025.117882","url":null,"abstract":"<div><div>Low efficiency and poor stability are considered as the dominant factors that hinder the further development of tin-based perovskite solar cells due to the easy oxidation of the divalent tin ions (Sn<sup>2+</sup>). Aiming at solving the issues, 2,4-dichlorophenylhydrazine hydrochloride (DPHH) is doped into the FASnI<sub>3</sub> perovskite film to inhibit the oxidation of Sn<sup>2+</sup> to the tetravalent tin ions (Sn<sup>4+</sup>). The molecular structure of DPHH contains reductive hydrazine group and hydrophobic phenyl group, which can effectively protect the ions of Sn<sup>2+</sup>, prevent the further degradation of FASnI<sub>3</sub> film. Further analysis of the surface morphology and crystal structure reveal that DPHH can effectively improve the crystallinity and grain size of the FASnI<sub>3</sub> perovskite film, which is beneficial for increasing the resistance of charge recombination. More importantly, the devices exhibit superior self-repairing property in device lifetime testing. It’s confirmed that the phenylhydrazine ion (Ph<sup>+</sup>) in DHPP can partially reduce Sn<sup>4+</sup> formed by oxidation to Sn<sup>2+</sup>, so as to partially repair the defects of the film and enhance the performance. Therefore, the modified devices exhibit enhanced device performance, including enhanced power conversion efficiency as well as longer liftetime.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117882"},"PeriodicalIF":4.0,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of cobalt phthalocyanine (CoPc) and reduced graphene oxide functionalized CoPc hybrid as sensing element for heavy metal ions in water 酞菁钴（CoPc）与还原氧化石墨烯官能化CoPc杂化物作为水中重金属离子传感元件的比较

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-05-03 DOI: 10.1016/j.synthmet.2025.117877

Erol Kam , Ahmet Altındal , Murat Sarı

{"title":"Comparison of cobalt phthalocyanine (CoPc) and reduced graphene oxide functionalized CoPc hybrid as sensing element for heavy metal ions in water","authors":"Erol Kam , Ahmet Altındal , Murat Sarı","doi":"10.1016/j.synthmet.2025.117877","DOIUrl":"10.1016/j.synthmet.2025.117877","url":null,"abstract":"<div><div>In this study, heavy metal ion (HMI) sensing properties of 4-pyridinyl-oxadiazole tetrasubstituted cobalt phthalocyanine (CoPc) and reduced graphene oxide (rGO) modified CoPc hybrid in water samples were comparatively investigated by quartz crystal microbalance (QCM) technique. The adsorption equilibrium isotherms of four main HMIs (As<sup>3 +</sup>, Hg<sup>2+</sup>, Pb<sup>2+</sup>, and Cd<sup>2+</sup>) from aqueous solutions onto CoPc and rGO/CoPc were also studied and modelled. Results showed that the presence of carboxyl groups and strong Lewis base nature of rGO improves the HMI sensitivity of rGO/CoPc nanocomposite. A sensitivity value of 3.9 × 10<sup>4</sup> Hz/mg l <sup>−1</sup> was obtained for As<sup>3+</sup> ions with rGO/CoPc while it was 6.7 × 10<sup>2</sup> Hz/mg l<sup>−1</sup> with CoPc. A set of long-term stability and reusability tests was performed on both CoPc and CoPc/rGO hybrid based sensors for Pb<sup>2+</sup> ions. CoPc/rGO hybrid exhibits excellent long-term stability after ∼ 500 h, maintaining about 95 % of its initial sensitivity, compared to 80 % for the CoPc-based sensor. The adsorption equilibrium isotherms of the four HMIs from aqueous solutions onto CoPc and rGO/CoPc were modelled using five different (Langmuir, Freundlich, Elovich, Temkin, and Jovanovic) two parameter adsorption isotherm models. Regression analysis showed that the functionalization of the CoPc with rGO has a strong effect on the HMIs adsorption isotherm.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117877"},"PeriodicalIF":4.0,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143912274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phenylenediamine and 4,4’-methylenedianiline functionalized rGO as high-performance materials for improving pseudocapacitance performance and cyclic stability of conductive polymer 苯二胺和4,4′-亚甲基苯胺功能化氧化石墨烯作为提高导电聚合物赝电容性能和循环稳定性的高性能材料

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-04-30 DOI: 10.1016/j.synthmet.2025.117880

Peyman Khodaei kahriz , Ali Akbar Heidari , Ali Ehsani , Hossein Mahdavi , Khalil Farhadi , Mohammad Bigdeloo

{"title":"Phenylenediamine and 4,4’-methylenedianiline functionalized rGO as high-performance materials for improving pseudocapacitance performance and cyclic stability of conductive polymer","authors":"Peyman Khodaei kahriz , Ali Akbar Heidari , Ali Ehsani , Hossein Mahdavi , Khalil Farhadi , Mohammad Bigdeloo","doi":"10.1016/j.synthmet.2025.117880","DOIUrl":"10.1016/j.synthmet.2025.117880","url":null,"abstract":"<div><div>Here, improved Hummer’s approach was utilized for the formation of graphene oxide (GO) from graphite. Then, using 4,4’-methylenedianiline (MDA) was utilized as a reducing agent for the fabrication of reduced graphene oxide (rGO) hydrogel from the as-prepared GO. In the next step, using the electro-polymerization technique, p-Phenylenediamine (pPD), playing the role of spacer, was grafted on the prepared rGO, conducted through interfacial polymerization in HCl (rGO-P<em>p</em>PD-HCl) and mixing polymerization in CHCl<sub>3</sub> (rGO-P<em>p</em>PD-CHCl<sub>3</sub>). Finally, Poly ortho aminophenol (POAP) as a p-type conductive polymer was synthesized on the channels of the as-fabricated nanocompsites. The prepared nanocomposite architecture possessed significant surface area and great pore volume, by which a synergistic effect can be obtained, leading to a superior overall performance. It was found that the specific capacitance of the fabricated spherical composite electrode with optimum results was 985 F/g at 1.0 A/g current density, and the retention rate of the initial capacity was 90 % after 3000 cycles in acidic solution, demonstrating its excellent cycle stability.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117880"},"PeriodicalIF":4.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of new first and fifth generation OLED emitters by doping 12,12-dimethyl-7-phenyl-7,12-dihydrobenzo[a]acridine-3-carbonitrile (BACN): DFT study 用12,12-二甲基-7-苯基-7,12-二氢苯并[a]吖啶-3-碳腈（BACN）掺杂设计新的第一代和第五代OLED发射体：DFT研究

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-04-30 DOI: 10.1016/j.synthmet.2025.117879

Pierre Ferdinand Bissi Nyandou , Patrick Noudem , Côme Damien Désiré Mveme , David Fouejio , Serge Sylvain Zekeng

{"title":"Design of new first and fifth generation OLED emitters by doping 12,12-dimethyl-7-phenyl-7,12-dihydrobenzo[a]acridine-3-carbonitrile (BACN): DFT study","authors":"Pierre Ferdinand Bissi Nyandou , Patrick Noudem , Côme Damien Désiré Mveme , David Fouejio , Serge Sylvain Zekeng","doi":"10.1016/j.synthmet.2025.117879","DOIUrl":"10.1016/j.synthmet.2025.117879","url":null,"abstract":"<div><div>In this paper, DFT and TD-DFT were used to investigate the impact of potassium doping on the electronic, NLO, and photophysical properties of BACN. The results indicate that doping with one (sample M1) or two (sample M2) potassium atoms enhances the electronic and optical properties of pure BACN (sample M0), reducing the bandgap from 3.70 eV for M0 to 2.97 eV for M1 and 2.34 eV for M2. This reduction increases electronic conductivity and intramolecular charge transfer. The first order hyperpolarizability values of the doped compounds are approximately 8 times higher for M1 and 9 times higher for M2 compared to M0, suggesting that the doped compounds are excellent candidates for nonlinear optical applications compared to the undoped compound M0. Regarding photophysical properties, M1 exhibits an inverted singlet-triplet (IST) state characterized by <span><math><mrow><mo>∆</mo><msub><mrow><mi>E</mi></mrow><mrow><mi>ST</mi></mrow></msub><mo>=</mo><mo>−</mo><mn>0.66</mn><mspace></mspace><mi>eV</mi></mrow></math></span> between S<sub>1</sub> and T<sub>1</sub>, with a low RISC process. The UV-Vis spectrum of M1 reveals a double excitation with maximum bands in the near UV range, while its emission spectrum shows a peak at 415.44 nm with a CIE chromatic coordinate of (0.20, 0.18), indicating that M1 is a promising candidate for fifth-generation blues OLEDs. In contrast, the absorption and emission spectra of M2 show maxima in the visible spectrum at 413.22 nm and 400.61 nm, respectively. Thus, M2 can be used as an emitter for first-generation OLEDs used as antibacterial light sources, as well as an absorber for organic solar cells (OSCs).</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117879"},"PeriodicalIF":4.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient visible-light-driven H2O2 production activity of covalently modified zinc phthalocyanine/g-C3N4 heterostructure 共价修饰的酞菁锌/g-C3N4异质结构的高效可见光产H2O2活性

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-04-30 DOI: 10.1016/j.synthmet.2025.117878

Sibel Eken Korkut

{"title":"Efficient visible-light-driven H2O2 production activity of covalently modified zinc phthalocyanine/g-C3N4 heterostructure","authors":"Sibel Eken Korkut","doi":"10.1016/j.synthmet.2025.117878","DOIUrl":"10.1016/j.synthmet.2025.117878","url":null,"abstract":"<div><div>Developing efficient heterojunction photocatalysts holds a great promise for advancing solar-to-chemical energy conversion. In this study, tetra-4-carboxyethylenephenoxy-substituted Zinc (II) phthalocyanine (ZnTcPc) was covalently linked to the amine-functionalized graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) to create an efficient photocatalyst. The optimized ZnTcPc/g-C<sub>3</sub>N<sub>4</sub> composite demonstrated improved photocatalytic activity relative to that of pure g-C<sub>3</sub>N<sub>4</sub> and ZnTcPc in the generation of H<sub>2</sub>O<sub>2</sub> under 150 W metal halide lamp at ambient temperature. The covalent integration of ZnTcPc into the g-C<sub>3</sub>N<sub>4</sub> framework tailored its electronic structure efficiently and highlighted the potential of the ZnTcPc/g-C<sub>3</sub>N<sub>4</sub> composite as a visible-light responsive photocatalyst. FT-IR spectroscopy revealed the establishment of novel chemical linkages between ZnTcPc and g-C<sub>3</sub>N<sub>4</sub>, indicating strong covalent interactions. SEM and TEM analyses provided insight into the morphological transformation, showing a more uniform surface texture and enhanced interface contact between the two materials, facilitating better charge transfer. XRD patterns indicated alterations to the crystalline structure, confirming the successful incorporation of ZnTcPc into the g-C<sub>3</sub>N<sub>4</sub> lattice. Additionally, XPS analysis verified the electronic coupling between g-C<sub>3</sub>N<sub>4</sub> and ZnTcPc, with shifts in binding energies suggesting strong electronic interaction. These findings underscore the nanocomposite's improved photocatalytic activity and responsiveness to visible light. It achieved the highest H<sub>2</sub>O<sub>2</sub> production rate of 27.17 mg/L within 90 min, surpassing the rates of pure g-C<sub>3</sub>N<sub>4</sub> and ZnTcPc. This synergistic photocatalytic process provides valuable insights into advancing energy conversion technologies.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117878"},"PeriodicalIF":4.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile design of NiO-rGO/Mo2Ti2C3 ternary composites for electrochemical detection of dopamine 用于多巴胺电化学检测的NiO-rGO/Mo2Ti2C3三元复合材料的简易设计

IF 4 3区材料科学

Synthetic Metals Pub Date : 2025-04-14 DOI: 10.1016/j.synthmet.2025.117876

Keerthana Sahadevan , Mari Vinoba , Shanmugam Revathi , Soon Kwan Jeong , Margandan Bhagiyalakshmi

{"title":"Facile design of NiO-rGO/Mo2Ti2C3 ternary composites for electrochemical detection of dopamine","authors":"Keerthana Sahadevan , Mari Vinoba , Shanmugam Revathi , Soon Kwan Jeong , Margandan Bhagiyalakshmi","doi":"10.1016/j.synthmet.2025.117876","DOIUrl":"10.1016/j.synthmet.2025.117876","url":null,"abstract":"<div><div>In this study, a ternary NiO-rGO/Mo<sub>2</sub>Ti<sub>2</sub>C<sub>3</sub> MXene hybrid materials were synthesized through an in-situ approach, integrating electrochemically active rGO derived from industrial graphite waste, Mo<sub>2</sub>Ti<sub>2</sub>C<sub>3</sub> derived from MAX phase (Mo<sub>2</sub>Ti<sub>2</sub>AlC<sub>3</sub>) and NiO nanoparticles. XRD, FTIR, UV-Vis, Raman spectroscopy, SEM-EDS, HR-TEM, BET, and XPS analysis were done to confirm the structural integrity and elemental composition of NiO-rGO/Mo<sub>2</sub>Ti<sub>2</sub>C<sub>3</sub>. The synergistic effects of rGO and MXene with NiO nanoparticles facilitate NiO-rGO/Mo<sub>2</sub>Ti<sub>2</sub>C<sub>3</sub> as a potential electrocatalyst to enhance the electrocatalytic oxidation of dopamine. The NGM21-modified electrode exhibited superior electrochemical performance for dopamine detection, demonstrating high sensitivity (1.441 × 10<sup>−4</sup> μA μM<sup>−1</sup>), a broad detection range (0.002–0.012 μM), a limit of quantification of 4.79 nM, and a low detection limit of 1.44 nM. Cyclic voltammetry and differential pulse voltammetry analysis of NGM21-modified electrode revealed rapid current response, excellent selectivity, and minimal interference from common analytes in the electrocatalytic detection of dopamine. Furthermore, real sample analysis demonstrated remarkable reproducibility, with recovery rates of 107 % in urine and 98–103 % in serum samples. Therefore, the results suggest that the ternary NiO-rGO/Mo<sub>2</sub>Ti<sub>2</sub>C<sub>3</sub> is a robust and reliable electrode material for the electrochemical detection of the neurotransmitter dopamine in medical applications.</div></div>","PeriodicalId":22245,"journal":{"name":"Synthetic Metals","volume":"312 ","pages":"Article 117876"},"PeriodicalIF":4.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0