New Journal of Chemistry最新文献

{"title":"Selective photoelectrocatalytic reduction of CO2 to ethanol with a CuO–MoO3/TiO2NTs composite photoelectrode†","authors":"Li Fei, Zheng Wanjun, Jin Liequn and Cao Huazhen","doi":"10.1039/D5NJ00186B","DOIUrl":"https://doi.org/10.1039/D5NJ00186B","url":null,"abstract":"<p >Overusing fossil energy sources has led to global warming, seriously risking the habitability of the environments on which people depend. Photoelectrocatalytic (PEC) reduction of carbon dioxide (CO<small>₂</small>) is a promising strategy to reduce CO<small>₂</small> into high-value-added chemicals and fuel products. However, photoelectrocatalysis faces problems related to low CO<small>₂</small> conversion efficiency and uncontrollable product complexity. This study reports a CuO–MoO<small>₃</small>/TiO<small>₂</small>NTs composite photoelectrode prepared by pulsed electrodeposition for the photoelectrocatalytic (PEC) reduction of CO<small>₂</small> to ethanol in a 1 M NaHCO<small>₃</small> medium under visible light irradiation and at an applied potential of −0.3 V <em>vs.</em> SCE. Molybdenum trioxide plays a regulatory role in the structure and properties of the photoelectrode. Photoluminescence analysis suggests that this occurs by introducing new energy levels between those of CuO and TiO<small>₂</small>, which reduces the bandgap energy from 1.42 eV to 1.17 eV, promotes electron–hole pair separation, and significantly boosts photoelectrocatalytic activity. In addition, experimental results show that the doping of MoO<small>₃</small> enhanced the adsorption strength of the intermediate products and promoted the C–C coupling process. The optimized composite photoelectrode achieves 89% Faraday efficiency for ethanol at −0.5 V <em>versus</em> SCE (saturated calomel electrode). No new phases were generated during the catalytic process, confirming the stability of the CuO–MoO<small>₃</small>/TiO<small>₂</small>NTs composite photoelectrode.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 16","pages":" 6702-6712"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830640","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":"Designing lenalidomide cocrystals with an extended-release profile for improved pulmonary drug delivery†","authors":"Martin A. Screen, Gary Tomkinson, James F. McCabe, Sean Askin, Clare S. Mahon, Mark R. Wilson and Jonathan W. Steed","doi":"10.1039/D5NJ00425J","DOIUrl":"https://doi.org/10.1039/D5NJ00425J","url":null,"abstract":"<p >Lenalidomide is a poorly soluble immunomodulatory drug that has been the subject of several cocrystal studies aiming to improve oral bioavailability by enhancing solubility. In contrast, for application in pulmonary fibrosis, reduced solubility may extend the retention time and reduce potential side effects of inhalable formulations. In this article, we present a proof-of-principle study on a low-solubility cocrystal of lenalidomide and melamine. The structure of the hydrated cocrystal was determined by single crystal X-ray diffraction and revealed a 3-dimensional hydrogen-bonding network between lenalidomide, melamine and channel-included solvent. The cocrystal has a lower maximum solubility than pure lenalidomide, making it more suitable for inhalable formulation approaches. A preliminary study shows that the cocrystal can be micronized with lactose as a model excipient with particle sizes in the appropriate order of magnitude for use in an inhalable formulation.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 16","pages":" 6535-6543"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/nj/d5nj00425j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830599","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":"Phenanthroline and hydroxyurea-based Co(iii) complexes: synthesis, characterization and investigation of biological potential†","authors":"Alexsandro Assis Lopes, Gabriela Cruz Fernandes, Lourdes Cardoso de Souza Neta, Geanine Souza Rocha, Maria Vitória Gomes das Neves, Isabela Santos Cezar, Cássio Santana Meira, Milena Botelho Pereira Soares, Valdinea Santos Dias, Edith Cristina Laignier Cazedey, Denise Santos de Sá, Walter Alves Gomes Junior and Carlos Daniel Silva da Silva","doi":"10.1039/D4NJ05021E","DOIUrl":"https://doi.org/10.1039/D4NJ05021E","url":null,"abstract":"<p >It is undeniable that society has made significant advances in developing products and technologies to treat and remedy various diseases affecting the population. However, some neglected diseases still have few treatment options. Therefore, conducting studies to develop treatment options for this group is relevant. To leverage the versatile properties of coordination compounds, this study focuses on the development of cobalt(<small>III</small>)-based coordination compounds using hydroxyurea (HU) and <em>o</em>-phenanthroline (phen) as ligands. The complexes <em>cis</em>-[CoCl<small>₂</small>(phen)<small>₂</small>]Cl·3H<small>₂</small>O and <em>cis</em>-[Co(HU)<small>₂</small>(phen)<small>₂</small>]Cl<small>₃</small>·2H<small>₂</small>O were synthesized and characterized using various analytical techniques. The <small>¹³</small>C NMR spectrum confirmed that hydroxyurea is part of the composition of <em>cis</em>-[Co(HU)<small>₂</small>(phen)<small>₂</small>]Cl<small>₃</small>·2H<small>₂</small>O. Based on the vibrational spectrum (FTIR), HU coordinates to Co(<small>III</small>) through the oxygen atom (carbonyl). Elemental and thermal analyses supported the proposed compositions, and the X-ray powder diffraction data indicated a strong similarity in the crystal structures between both compounds. Additionally, UV-vis and chromatographic data indicated reactivity in water for <em>cis</em>-[Co(HU)<small>₂</small>(phen)<small>₂</small>]Cl<small>₃</small>·2H<small>₂</small>O, with the release of the HU ligand. Once well-characterized, the compounds were evaluated against <em>T. cruzi</em> protozoa, as well as bacterial and fungal strains. As a result, <em>cis</em>-[CoCl<small>₂</small>(phen)<small>₂</small>]Cl·3H<small>₂</small>O exhibited trypanocidal activity, similar to benznidazole, against the trypomastigote and amastigote forms of <em>T. cruzi</em>, in non-toxic concentrations for cardiomyocytes. The antiparasitic activity of <em>cis</em>-[CoCl<small>₂</small>(phen)<small>₂</small>]Cl·3H<small>₂</small>O is linked to the formation of membrane blebs, body deformation, and the loss of plasma membrane integrity in the parasites. Furthermore, <em>cis</em>-[Co(HU)<small>₂</small>(phen)<small>₂</small>]Cl<small>₃</small>·2H<small>₂</small>O demonstrated antimicrobial activity against two bacterial strains (<em>Staphylococcus aureus</em> and <em>Bacillus subtilis</em>). Given that the compounds exhibit expected characteristics and demonstrate multiple types of biological activity, it is important to continue studying them to elucidate their mechanisms of action and identify other potential activities.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 18","pages":" 7393-7402"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908571","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":"Development of enhanced CO2 adsorbents on functionalized MCM-41 with hybrid amines","authors":"Zhaolin Xu, Xiaolong Yang, Senmiao Liu, Bo Wang, Yanhua Peng, Yan Zhang and Zhuo Li","doi":"10.1039/D5NJ00729A","DOIUrl":"https://doi.org/10.1039/D5NJ00729A","url":null,"abstract":"<p >In this study, three preparation methods were used to modify MCM-41 to enhance the CO<small>₂</small> adsorption capability. That is, grafting, impregnation and a two-step method combining the grafting and impregnation. It was demonstrated that amine grafting and subsequent impregnation of MCM-41 significantly enhanced the CO<small>₂</small> adsorption capacity than single amine alone. The maximum adsorption capacity of 5.49 mmol g<small>⁻¹</small> was obtained on MCM-41 with 1% 3-aminopropyltriethoxysilane (APTES) grafting and subsequent 60% triethylenetetramine (TETA) impregnation (named as M-1AP-60TETA), which also showed good adsorption cycling stability for ten cycles. This was attributed to the synergistic effect of APTES and TETA, where the formation of an intertwined network enhanced CO<small>₂</small> diffusion and carbamate formation.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 18","pages":" 7384-7392"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908570","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":"Magnetic properties of 3D lanthanide complexes with 1,3-bis(diphenylphosphoryl)-2-oxapropane: the slow magnetic relaxation of Yb3+ compounds†","authors":"Serafima S. Slobodskaia, Nikolay N. Efimov, Alina S. Galkina, Galina S. Tsebrikova, Andrey B. Ilyukhin, Irina S. Ivanova, Vladimir E. Baulin and Aslan Yu. Tsivadze","doi":"10.1039/D5NJ00123D","DOIUrl":"https://doi.org/10.1039/D5NJ00123D","url":null,"abstract":"<p >For the first time, polymeric isostructural complexes of Y<small>³⁺</small>, Dy<small>³⁺</small>, Yb<small>³⁺</small> and diamagnetically diluted Dy<small>³⁺</small> and Yb<small>³⁺</small> with flexible-chain phosphoryl podand 1,3-bis(diphenylphosphoryl)-2-oxapropane (<strong>L</strong>) were synthesized and characterized by X-ray, elemental analysis, IR and NMR spectroscopy. The bridging function of the ligand <strong>L</strong> leads to the formation of a 3D framework. The AC susceptibility measurements of the Dy<small>³⁺</small> complex with <strong>L</strong> (<strong>1</strong>) indicated the absence of slow relaxation of magnetization in magnetic fields up to 5000 Oe. The study of the AC magnetic behavior of the Yb<small>³⁺</small> complex with <strong>L</strong> (<strong>6</strong>) showed the presence of slow magnetic relaxation in the DC field of 2500 Oe with the most probable magnetization reversal path being the combination of Raman mechanism and the direct process. The value of the effective energy barrier of magnetic relaxation Δ<em>E</em>/<em>k</em><small>_B</small> according to the approximation of the high temperature part of the <em>τ</em>(1/<em>T</em>) plot to the Arrhenius equation is 24 K. Diamagnetic dilution of Dy<small>³⁺</small> and Yb<small>³⁺</small> compounds revealed no significant impact on the slow relaxation of magnetization.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 18","pages":" 7451-7458"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908575","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":"Photoredox-catalyzed synthesis of sulfonated dihydrofurans from olefinic carbonyls through the insertion of sulfur dioxide†","authors":"Lidan Sun, Mengze Xu, Yurou Feng, Quanjie Lin, Xiaolan Xie, Jinhai Shen and Zhichao Chen","doi":"10.1039/D5NJ00238A","DOIUrl":"https://doi.org/10.1039/D5NJ00238A","url":null,"abstract":"<p >Photoredox-catalyzed generation of sulfonated dihydrofurans starting from olefinic carbonyls, DABCO·(SO<small>₂</small>)<small>₂</small>, and aryldiazonium salts has been developed. This protocol enables efficient access to various sulfonated dihydrofurans with moderate to good yields. This transformation involves the sequential insertion of sulfur dioxide, intermolecular sulfonylation of alkenes and intramolecular cyclization <em>via</em> a radical process.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 17","pages":" 7268-7272"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861019","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":"Study on fluorescence properties in solutions and the solid states of three N,O-chelated difluoroboron compounds and their application in latent fingerprint imaging and ink-free writing†","authors":"Haiyan Luo, Chunlin Chen, Shan Li, Bangcui Zhang, Fafen Chen, Jiazhuang Tian, Shulin Gao, Jianfei Wang, Xiangguang Li and Yanhua Yang","doi":"10.1039/D5NJ00511F","DOIUrl":"https://doi.org/10.1039/D5NJ00511F","url":null,"abstract":"<p >To further promote the development of multifunctional organoboron fluorescent dyes, three different methyl-substituted pyridine-based difluoroboron compounds (<strong>1-BF<small>₂</small></strong>, <strong>2-BF<small>₂</small></strong>, and <strong>3-BF<small>₂</small></strong>) were designed and successfully synthesized to explore their photoluminescence properties in solutions and in the solid-state. Results suggested that all three compounds had solvent-dependent behaviors in seven organic solvents, and the solid powder was luminescent under a UV lamp. Furthermore, compounds <strong>1-BF<small>₂</small></strong> and <strong>3-BF<small>₂</small></strong> exhibited aggregation-induced emission activities in DMSO/water mixtures, but compound <strong>2-BF<small>₂</small></strong> displayed an aggregation-caused quenching phenomenon. Importantly, the solid-state powder of compound <strong>1-BF<small>₂</small></strong> exhibited irreversible mechanofluorochromism due to its packing mode change between the crystalline phase and the amorphous state, according to the XRD diffraction results, which endowed it with ink-free writing characteristics. The abovementioned photophysical properties were explained by time-dependent density functional theory calculations. It was also found that compounds <strong>1-BF<small>₂</small></strong> and <strong>3-BF<small>₂</small></strong> could be used for latent fingerprint imaging and could provide preliminary evidence to match personal identity.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 18","pages":" 7414-7425"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908572","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":"Catalytic oxidative depolymerization of lignin dimers over NiMn-MOF-derived catalysts in the presence of oxygen†","authors":"Qi Ye, Fei Ge, Xiaohui Yang and Minghao Zhou","doi":"10.1039/D4NJ05229C","DOIUrl":"https://doi.org/10.1039/D4NJ05229C","url":null,"abstract":"<p >The catalytic oxidative depolymerization of lignin and its dimers is key for the effective utilization of biomass. In this work, a metal–organic framework (MOF) was chosen as the precursor, and a series of nickel–manganese bimetallic catalysts with different metal ratios were prepared <em>via</em> a hydrothermal method using 1,3,5-tricarboxylic acid as the ligand. The effects of metal ratio and calcination temperature on the activity of the catalyst were considered, and the oxidative depolymerization of the lignin dimer (2-phenoxy-1-acetophenone) was investigated in detail. The selective conversion of 2-phenoxy-1-acetophenone was achieved over the Ni<small>₂</small>Mn<small>₁</small>-MOF catalyst in an oxygen atmosphere with methanol as the solvent. Through the optimization of different reaction parameters, including reaction temperature, oxygen pressure, reaction time and solvent, it was found that under optimal reaction conditions (140 °C, 4 h, 0.5 MPa O<small>₂</small>), the Ni<small>₂</small>Mn<small>₁</small>-MOF catalyst exhibited a good catalytic performance for the efficient conversion of 2-phenoxy-1-acetophenone to phenol and methyl benzoate. Furthermore, its specific reaction mechanism was discussed based on the distribution of products in the lignin dimer oxidation process, which was useful for understanding the further oxidative depolymerization of lignin.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 16","pages":" 6629-6639"},"PeriodicalIF":2.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830632","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":"Conductivity enhancement mechanism and application of NiCo-MOF hollow sphere electrode materials in lithium-ion batteries†","authors":"Tinghai Yang, Rengui Xiao, Fenglian Lu, Xiang Ke, Mengxia Wang and Keliang Wang","doi":"10.1039/D5NJ00121H","DOIUrl":"https://doi.org/10.1039/D5NJ00121H","url":null,"abstract":"<p >Metal–organic frameworks (MOFs) are considered highly promising anode materials for lithium-ion batteries (LIBs) due to their unique physical and chemical properties. However, the low electrical conductivity of single-metal MOF materials limits their application in LIBs. To overcome this challenge, this work designed and synthesized a bimetallic NiCo-MOF material with a hollow spherical structure. Through a combination of theoretical and experimental methods, we explored the differences in conductive mechanisms between Ni-MOF and NiCo-MOF, as well as their electrochemical performance as anode materials for lithium-ion batteries. Specifically, the average electrical conductivity of NiCo-MOF is 0.058 mS cm<small>⁻¹</small>, which is 34 times that of Ni-MOF (0.0017 mS cm<small>⁻¹</small>). Density functional theory (DFT) calculations indicate that the increase in conductivity is due to the introduction of Co<small>²⁺</small>, which increases the electron transport pathways and significantly boosts carrier concentration. Compared to Ni-MOF, NiCo-MOF has 19 additional electrons at the Fermi level. This enhanced conductivity also results in a more significant electrochemical performance; under 2C conditions, NiCo-MOF maintains a specific capacity of 696.3 mA h g<small>⁻¹</small> after 200 cycles, which is twice that of Ni-MOF (299.9 mA h g<small>⁻¹</small>). This work provides a potential strategy for improving the conductivity of MOF materials and their application in lithium-ion batteries.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 16","pages":" 6674-6683"},"PeriodicalIF":2.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830637","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":"Three birds with one stone: Ni–MoN nano-heterostructures encapsulated in NCNTs for efficient hydrogen production via overall water splitting and urea electrolysis†","authors":"Yumei Liao, Zhimin He, Wei Hong, Qin Dong, Xinglong Gou and Rong Li","doi":"10.1039/D5NJ00565E","DOIUrl":"https://doi.org/10.1039/D5NJ00565E","url":null,"abstract":"<p >Development of efficient multifunctional electrocatalysts for hydrogen production from overall water splitting (OWS) and urea electrolysis (UE) is highly desired yet challenging. Herein, Ni–MoN nano-heterostructures encapsulated in NCNTs have been successfully fabricated on Cu foam (NMN@NC/CF), which exhibits excellent trifunctional catalytic activity toward the hydrogen evolution reaction (HER, <em>η</em><small>_10, 1200</small> = 69, 265 mV), oxygen evolution reaction (OER, <em>η</em><small>₁₀</small> = 191 mV) and urea oxidation reaction (UOR, <em>E</em><small>_10, 500</small> = 1.316, 1.450 V), outperforming noble metal-based catalysts due to its unique structure and intrinsic catalytic capability. Furthermore, a two-electrode electrolyzer using NMN@NC/CF as both the cathode and anode needs a much lower voltage of 1.376 V for UE than the value of 1.521 V for OWS to reach 10 mA cm<small>⁻²</small>, and it can remain stable over 100 h during continuous UE operation at 500 mA cm<small>⁻²</small>, demonstrating great promise for simultaneous energy-saving hydrogen production and remediation of urea-containing wastewater.</p>","PeriodicalId":95,"journal":{"name":"New Journal of Chemistry","volume":" 17","pages":" 7164-7170"},"PeriodicalIF":2.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861109","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}