New Journal of Chemistry最新文献

{"title":"Hydrothermal synthesis of the AC@In3S4 composite and investigation of its enhanced electrocatalytic properties for improving the energy-storage efficiency in vanadium redox flow batteries and supercapacitors†","authors":"Gireeshkumar Basavaraj Chavati, Sharath Kumar Basavaraju, Arthoba Nayaka Yanjerappa, Malashri Boraiah Sannaobaiah, Handanahally Basavarajaiah Muralidhara, Krishna Venkatesh and Keshavanarayana Gopalakrishna","doi":"10.1039/D5NJ01371B","DOIUrl":"https://doi.org/10.1039/D5NJ01371B","url":null,"abstract":"<p >Recent studies on redox flow batteries and supercapacitors have focused on grid-scale and micro-scale energy-storage systems, typically utilizing carbon composite materials as cost-effective electrocatalysts. Herein, we report an eco-friendly and safe method for synthesizing the AC@In<small>₃</small>S<small>₄</small> active material, which was coated onto 132 cm<small>²</small> of graphite felt (MGF). This MGF acts as an electrocatalyst for VRFB applications. We observed that the MGF increased the catalytic activity toward the VO<small>₂</small><small>⁺</small>/VO<small>²⁺</small> ions, achieving a 90% Coulombic efficiency (CE) along with good cycle stability up to 100 cycles at a current density of 60 mA cm<small>⁻²</small>. Furthermore, the AC@In<small>₃</small>S<small>₄</small> material was also investigated for supercapacitor applications, demonstrating excellent capacitive performance in 1 M H<small>₂</small>SO<small>₄</small>. Specifically, it delivered a high <em>C</em><small>_s</small> of 256 F g<small>⁻¹</small> with a CE of 80.82% and 96.11% retention at up to 3900 cycles. This pioneering work demonstrates that AC@In<small>₃</small>S<small>₄</small> composites possess significant potential as low-cost, environmentally friendly, and efficient materials for sustainable energy-storage applications.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8877-8887"},"PeriodicalIF":2.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HS–SPME–GC–MS combined with machine learning methods for screening volatile quality indicators in Hypericum perforatum L.†","authors":"Zhiyong Zhang, Jiahe Qian, Zehua Ying, Zhenhao Tang, Zheng Li and Wenlong Li","doi":"10.1039/D4NJ04845H","DOIUrl":"https://doi.org/10.1039/D4NJ04845H","url":null,"abstract":"<p > <em>Hypericum perforatum</em> L. (HPL), a natural product with high medicinal value, exhibits diverse bioactivities. The efficacy of <em>H. perforatum</em> varies with different parts of the plant, and the content of active ingredients also varies significantly. Elucidation of the volatile compounds in different medicinal parts of HPL and screening of suitable active compounds as indicators for quality control are essential for its quality improvement. In this study, HS–SPME–GC–MS was used to characterize the volatile compounds in <em>H. perforatum</em> collected from Xinjiang, China. Subsequently, an OPLS-DA model was established to visualize differences among three distinct parts of <em>H. perforatum</em>. Then, network pharmacology was used to analyze the pharmacological activity of the identified differential metabolites. Finally, three classifiers (support vector machine, random forest, and <em>K</em>-nearest neighbor) were used to assess the qualification of the identified quality markers. A total of 159 volatile compounds were identified by combining the MS database and retention indices for rigorous evaluation to remove redundant information. And 67 differential metabolites were screened by the OPLS-DA model. Furthermore, network pharmacological analysis revealed that 48 compounds were associated with 1159 target genes. Among these, 18 highly active compounds were selected as potential markers. All three classifiers demonstrated good performance across different variables. Ultimately, eight compounds were selected as markers for laboratory quality control of <em>H. perforatum</em>.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 22","pages":" 9354-9367"},"PeriodicalIF":2.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rational design and insights into the synergistic activity of CeOx and Zn on Cu2Se for highly selective electrocatalytic methanol oxidation to formic acid†","authors":"Juan Gao, Peng Wu, Xin Yu, Yimu Zhang, Xingzhuo Han, Tingting Fang and Yurong Ma","doi":"10.1039/D5NJ01216C","DOIUrl":"https://doi.org/10.1039/D5NJ01216C","url":null,"abstract":"<p >The selective methanol oxidation reaction (MOR) can produce formic acid, which is an important chemical intermediate in the textile, printing, and pharmaceutical industries. In this study, an amorphous/crystalline catalyst, Cu<small>₂</small>Se/(Zn)CeO<small>_<em>x</em></small>, was obtained, which exhibited high selectivity for the MOR to produce formic acid. The synergistic effect of Zn, CeO<small>_<em>x</em></small> and Cu<small>₂</small>Se in Cu<small>₂</small>Se/(Zn)CeO<small>_<em>x</em></small> provides an internal driving force for the high availability of the active sites, which in turn maintains higher MOR efficiency. The leaching of Zn resulted in an elevated concentration of CeO<small>₂</small> in the amorphous CeO<small>_<em>x</em></small>, which functions not only as a charge transfer promoter but also as an initiator for the efficient regeneration of the active Cu<small>²⁺</small> sites. <em>In situ</em> electrochemical impedance spectroscopy demonstrated that elevated methanol concentrations inhibit the phase transition of the catalyst to high-valent electrooxidation products. The findings of this study may provide new avenues for the exploration of the selective MOR to produce formic acid.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 22","pages":" 9295-9304"},"PeriodicalIF":2.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sandwich-structured PEO-based composite solid-state electrolytes for lithium–sulfur batteries†","authors":"Jingyi Wu, Ruiqing Liu, Hui Cheng, Chenxu Tian, Yu Zhang, Xiaoyu Wang, Ying Liu, Wenxiu Liu, Xiujing Lin, Cuie Zhao, Li Shi, Xiaomiao Feng and Yanwen Ma","doi":"10.1039/D5NJ01173F","DOIUrl":"https://doi.org/10.1039/D5NJ01173F","url":null,"abstract":"<p >Solid-state lithium–sulfur batteries (SSLSBs) employing poly(ethylene oxide) (PEO)-based electrolytes have garnered significant attention as a promising energy storage system due to their high specific energy, straightforward manufacturability and cost-effectiveness. However, the inherent low ionic conductivity of PEO-based electrolytes at room temperature and sluggish conversion kinetics of dissolved lithium polysulfides (LiPS) result in significant active material depletion through irreversible LiPS accumulation, ultimately hindering their practical application. Therefore, composite solid-state electrolytes by incorporating inorganic fillers into the PEO matrix have been proposed to address these challenges. In this work, PEO–TiO<small>₂</small> composite solid-state electrolytes with a sandwich-structure containing inorganic oxide fillers have been prepared for lithium–sulfur batteries by a simple and efficient solution casting method. The incorporation of TiO<small>₂</small> inhibits the shuttle effect of Li<small>₂</small>S<small>_<em>x</em></small> species, reduces the glass transition temperature of PEO and increases the amount of amorphous portion, thus improving the ionic conductivity and mechanical strength. The ionic conductivity of the CSE-5 electrolyte is 5.04 × 10<small>⁻⁴</small> S cm<small>⁻¹</small> at 60 °C, and the Li//CSE-5//Li cell could be stably cycled for 2400 h at a current density of 0.1 mA cm<small>⁻²</small>. The initial discharge specific capacity of the Li//CSE-5//S@C solid-state cell is 1054 mA h g<small>⁻¹</small> at 0.1C, and it still can remain at 703 mA h g<small>⁻¹</small> after 100 cycles.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 22","pages":" 9157-9165"},"PeriodicalIF":2.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cyclometalated platinum(ii) complex-based soft salt with multistimuli-responsive properties†","authors":"Alexandre Rico, Pascal Le Poul, Antonin Lyčka, Julián Rodríguez-López, Sylvain Achelle and Sébastien Gauthier","doi":"10.1039/D5NJ01402F","DOIUrl":"https://doi.org/10.1039/D5NJ01402F","url":null,"abstract":"<p >A soft salt, <strong>S</strong>, comprising two oppositely charged platinum(<small>II</small>) complexes, ([Pt(C<small>_{F<small>₂</small>}</small>^N)(en)]<small>⁺</small> and [Pt(C<small>_{Ph<small>₂</small>}</small>^N)(CN)<small>₂</small>]<small>⁻</small>), was synthesized and characterized. Compound <strong>S</strong> exhibits photoluminescence in DMSO solution, emitting at 558 nm upon excitation at 414 nm, with a quantum yield of 0.49. In the solid state, when dispersed in a KBr matrix, a broad emission band centered at 658 nm is observed. The cationic and anionic components of <strong>S</strong> interact through electrostatic and van der Waals forces, leading to pronounced modifications of their luminescent behavior compared to their isolated counterparts. These include vapochromic responses, reversible photoluminescence quenching upon exposure to acid vapors, and thermally induced luminescence enhancement.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 20","pages":" 8494-8501"},"PeriodicalIF":2.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nj/d5nj01402f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Real world luminescence thermometry through a novel mixed-metal Eu/Tb complex with furan-containing 1,3-diketone†","authors":"Trofim A. Polikovskiy, Victoria E. Gontcharenko, Anna A. Ivanova, Darya A. Metlina, Mikhail A. Kiskin, Ilya V. Taydakov and Yury A. Belousov","doi":"10.1039/D5NJ00914F","DOIUrl":"https://doi.org/10.1039/D5NJ00914F","url":null,"abstract":"<p >This study explores the effects of minor chemical structure modifications on the thermometric performance of a novel mixed-metal complex [Tb<small>_0.94</small>Eu<small>_0.06</small>L<small>₃</small>(TPPO)<small>₂</small>] (HL – 4,4,4-trifluoro-1-(furan-2-yl)butan-1,3-dione, TPPO – triphenylphosphine oxide). By replacing NO<small>₃</small><small>⁻</small> with an HL<small>⁻</small> anion, we observed a significant enhancement in the complex's luminescent properties, including a shift in the high-sensitivity temperature range from 250 K to 150 K and a 3.3-fold increase in the relative thermal sensitivity (<em>S</em><small>_r</small>). The modified behavior of the charge transfer (CT) state improved the energy transfer efficiency between Eu<small>³⁺</small> and Tb<small>³⁺</small> ions. Additionally, a convolutional neural network (CNN) was employed to analyze temperature-dependent luminescence data under real-world conditions, yielding superior accuracy and precision to conventional methods. This combination of structure variation and machine learning advances the potential of luminescent thermometers in real-world applications.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 22","pages":" 9214-9225"},"PeriodicalIF":2.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrafast water transport within 2D LDH–CNT composite membranes promotes humidity sensing†","authors":"Xuming Bai, Dong Han and Kai-Ge Zhou","doi":"10.1039/D5NJ00734H","DOIUrl":"https://doi.org/10.1039/D5NJ00734H","url":null,"abstract":"<p >Layered double hydroxides (LDHs), as two-dimensional materials, exhibit multiple active sites for water molecule interaction after exfoliation and reconstruction into nanosheet membranes, presenting significant potential in the field of humidity sensing. This work demonstrates the rapid adsorption and desorption kinetics of water on LDH membranes, highlighting the fast response capability of LDH-based humidity sensors. Furthermore, we doped the LDH nanosheets with single-walled carbon nanotubes (SWCNTs) to modulate the interlayer spacing of LDH membranes and provide additional pathways for water transport, thereby enhancing the sensing performance of the LDH membrane. Our findings indicate that in the LDH–CNT composite membrane, the permeation rate of water molecules is significantly improved, with confined water transitioning from a “restricted” state to a more “relaxed” state, facilitating efficient proton transfer. Experimental results show that the LDH–CNT composite-based humidity sensor exhibits transient response times of 6.99 and 7.07 seconds within a relative humidity range of 30% to 80%. The proposed SWCNT-doping approach not only broadens the application prospects of LDHs in humidity sensing but also paves the way for more diverse applications of LDH materials.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 9013-9022"},"PeriodicalIF":2.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A near-infrared phosphorescent iridium(iii) complex for fast and selective detection of phosgene†","authors":"Yuanyan Li, Hong Zeng, Shuqin Fang and Yongquan Wu","doi":"10.1039/D5NJ00835B","DOIUrl":"https://doi.org/10.1039/D5NJ00835B","url":null,"abstract":"<p >Phosgene, a colorless and highly toxic gas, serves as a critical raw material in various industrial production processes. Its accidental leakage poses a significant risk to public safety. Therefore, developing a method for the rapid and sensitive monitoring of phosgene is of considerable practical significance. A ‘‘turn-off’’ near-infrared iridium(<small>III</small>) complex phosphorescent probe FNO3 was synthesized for real-time luminescence detection of phosgene. After reacting with phosgene, the oxime groups in FNO3 were converted to cyanide groups, resulting in the formation of a weaker luminescent product, FNO3-CN. The results of emission titration spectroscopy tests demonstrated a strong linear relationship between the logarithm of the emission intensity of FNO3 and the concentration of phosgene. The detection limit was as low as 0.18 μM, indicating that FNO3 is capable of quantitatively detecting low-concentration phosgene (as low as 4 ppm). Probe FNO3 exhibited high sensitivity, rapid response (&lt;5 s) and good selectivity towards phosgene. Finally, test strips were prepared by immobilizing FNO3 on filter paper and were successfully applied for the colorimetric detection of phosgene.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 21","pages":" 8939-8946"},"PeriodicalIF":2.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MgFeTi-LDH/g-C3N4 composites promote sodium persulfate activation through Fe3+/Fe2+ cycles for efficient tetracycline degradation under visible light irradiation†","authors":"Zihan Wei, Xiaoqian Ren, Tianhong Mei, Rongcheng Xiang, Wugan Wei, Xiaorui Yang, Yan Fang, Wenlong Xu, Jianliang Zhu and Jinhua Liang","doi":"10.1039/D5NJ00442J","DOIUrl":"https://doi.org/10.1039/D5NJ00442J","url":null,"abstract":"<p >In this study, various MgFeTi-LDH/g-C<small>₃</small>N<small>₄</small> photocatalytic materials were successfully synthesized through self-assembly, and their physicochemical and photoelectric properties were thoroughly characterized. Optical performance characterization of band gaps and VB-XPS spectra revealed that the <em>E</em><small>_VB</small> and <em>E</em><small>_CB</small> alignments of MgFeTi(3 : 1)-LDH/g-C<small>₃</small>N<small>₄</small> composites are consistent with the fundamental characteristics of S-type heterojunctions. MgFeTi(3 : 1)-LDH/g-C<small>₃</small>N<small>₄</small> coupled with sodium persulfate activation for TCH degradation achieved nearly 100% removal efficiency under visible light, surpassing previously reported catalysts. Moreover, five repeated tests of MgFeTi(3 : 1)-LDH/g-C<small>₃</small>N<small>₄</small> showed negligible change in the removal rate of TCH, indicating its potential value for industrial applications. Furthermore, the catalytic degradation pathway and mechanism for MgFeTi(3 : 1)-LDH/g-C<small>₃</small>N<small>₄</small> have been elucidated through LC-MS analysis, radical capture, and characterization. In addition, the high efficiency of TCH degradation is attributed to the synergy of Fe<small>³⁺</small>, Fe<small>²⁺</small>, SPS, and active species such as ˙OH, SO<small>₄</small>˙<small>⁻</small>, and ˙O<small>₂</small><small>⁻</small>. Finally, the QSAR analysis and OD<small>₆₀₀</small> values suggest that the degradation pathway and time lead to a reduction in toxicity and the potential risk to the degradation liquid. This study offers a simple and economical approach to completely degrade TCH, also providing practical application prospects in wastewater treatment.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 22","pages":" 9079-9095"},"PeriodicalIF":2.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction: A fluffy sphere-like NiCoCu-carbonate hydroxide based electrocatalyst for the oxygen evolution reaction in pH neutral electrolyte solution","authors":"Li Yu, Xiaocai Ma and Qin Liang","doi":"10.1039/D5NJ90066B","DOIUrl":"https://doi.org/10.1039/D5NJ90066B","url":null,"abstract":"<p >Retraction of ‘A fluffy sphere-like NiCoCu-carbonate hydroxide based electrocatalyst for the oxygen evolution reaction in pH neutral electrolyte solution’ by Li Yu <em>et al.</em>, <em>New J. Chem.</em>, 2024, Accepted Manuscript, https://doi.org/10.1039/D4NJ04511D.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 19","pages":" 8166-8166"},"PeriodicalIF":2.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nj/d5nj90066b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}