Peng-Fei Chen, Chun-Li Hu, Ming-Zhi Zhang, Jiang-Gao Mao
{"title":"β-LaTeBO5 and RETeBO5 (RE = Y, Gd, Tb): Explorations of New Optical Materials in the RE(III)-Te(IV)-B-O System","authors":"Peng-Fei Chen, Chun-Li Hu, Ming-Zhi Zhang, Jiang-Gao Mao","doi":"10.1039/d4qi03203a","DOIUrl":"https://doi.org/10.1039/d4qi03203a","url":null,"abstract":"Exploring new materials and enhancing their optical properties is an endeavor of great significance. Combining different types of optical functional groups such as borate and tellurite anions into a same compound can produce new material with novel structure and enhanced optical performance. In the RE(III)-Te(IV)-B-O system, a borate tellurite, namely, β-LaTeBO<small><sub>5</sub></small> (β-LTBO) and a series of lanthanide borotellurites, namely, RETeBO<small><sub>5</sub></small> (RE = Y, Gd, Tb), have been successfully synthesized by using the high-temperature solution method. β-LTBO crystallizes in the space group of <em>P</em>2<small><sub>1</sub></small>/<em>c</em> (No. 14) and its structure features [LaTeO<small><sub>3</sub></small>]<small><sub>∞</sub></small> layers composed of La<small><sup>3+</sup></small> cations and the [TeO<small><sub>3</sub></small>]<small><sup>2-</sup></small> anions, such layers are interconnected by the <small><sup>1</sup></small>[BO<small><sub>2</sub></small>]<small><sub>∞</sub></small> chains consisting of [BO<small><sub>3</sub></small>]<small><sup>3-</sup></small> planer triangles into a novel 3D structure. RETeBO<small><sub>5</sub></small> (RE = Gd, Tb, Y) feature 0D [Te<small><sub>2</sub></small>B<small><sub>2</sub></small>O<small><sub>10</sub></small>]<small><sup>6-</sup></small> clusters in which a central [Te<small><sub>2</sub></small>O<small><sub>6</sub></small>]<small><sup>4-</sup></small> dimer connects with two [BO<small><sub>3</sub></small>]<small><sup>3-</sup></small> groups on both sides of the dimer via Te-O-B bridges, and these 0D [Te<small><sub>2</sub></small>B<small><sub>2</sub></small>O<small><sub>10</sub></small>]<small><sup>6-</sup></small> clusters were interconnected by lanthanide ions to form the 3D structure. A phase transition from β phase to α phase was observed at 700 °C for LaTeBO<small><sub>5</sub></small> based on DSC and temperature dependent XRD studies. Excitingly, the birefringence of β-LTBO of 0.134@546 nm is much larger than those of RETeBO<small><sub>5</sub></small> (RE = Y, Gd) (0.08, 0.074@546 nm), which is the largest in the borate tellurite system. Theoretical calculations indicate that the <small><sup>1</sup></small>[BO<small><sub>2</sub></small>]<small><sub>∞</sub></small> chains made a considerable contribution to the enhanced birefringence for β-LaTeBO<small><sub>5</sub></small>. Furthermore, the luminescent and magnetic properties of RETeBO<small><sub>5</sub></small> (RE = Y, Gd, Tb) were also studied. The present study proposes that the investigation of the metal-Te(IV)-B-O system may potentially result in the identification of numerous novel multifunctional materials.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"4 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A high phase transition temperature organic-inorganic Sn(IV)-based metal halide designed by amino position isomerism of cation","authors":"Zhang-Tian Xia, Hui-Ping Chen, Jun-Chao Qi, Hang Peng, Xin Shen, Yong-Ju Bai, Zhen-Yu Wang, Tian-En Yang, Wei-Qiang Liao","doi":"10.1039/d4qi03257h","DOIUrl":"https://doi.org/10.1039/d4qi03257h","url":null,"abstract":"Organic-inorganic metal halides (OIMHs) have recently received extensive interest from researchers because of their diverse functionalities, such as phase transition. A high phase transition temperature (<em>T</em><small><sub>c</sub></small>) is highly desirable for the practical applications of OIMH phase transition materials. Here, by applying cation amino positional isomerism to the lead-free Sn(IV)-based OIMH [<em>n</em>-butylammonium]<small><sub>2</sub></small>SnCl<small><sub>6</sub></small> ([NBA]<small><sub>2</sub></small>SnCl<small><sub>6</sub></small>) which has a relatively low-<em>T</em><small><sub>c</sub></small> of 226 K, a high-<em>T</em><small><sub>c</sub></small> [<em>sec</em>-butylammonium]<small><sub>2</sub></small>SnCl<small><sub>6</sub></small> ([SBA]<small><sub>2</sub></small>SnCl<small><sub>6</sub></small>) was successfully designed with <em>T</em><small><sub>c</sub></small> as high as 430 K. Such a high <em>T</em><small><sub>c</sub></small> of [SBA]<small><sub>2</sub></small>SnCl<small><sub>6</sub></small> is higher than those of most lead-free OIMHs, and is outstanding among OIMHs. [NBA]<small><sub>2</sub></small>SnCl<small><sub>6</sub></small> and [SBA]<small><sub>2</sub></small>SnCl<small><sub>6</sub></small> are isostructural at room temperature, but differ in the hydrogen bond interactions, which could contribute to the differences in <em>T</em><small><sub>c</sub></small>. Additionally, the variation in phase transition mechanisms also constitutes a reason. In addition, [NBA]<small><sub>2</sub></small>SnCl<small><sub>6</sub></small> and [SBA]<small><sub>2</sub></small>SnCl<small><sub>6</sub></small> also have wide band gaps (<em>E</em><small><sub>g</sub></small>) of about 3.92 eV and 3.95 eV respectively. This work provides a new strategy for designing high-<em>T</em><small><sub>c</sub></small> OIMH materials.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"12 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yolimar Gil, María Mar Quesada-Moreno, Maria A. Palacios, Silvia Gómez-Coca, Enrique Colacio, Eliseo Ruiz, Daniel Aravena
{"title":"Determining the Zero-Field Cooling/ Field Cooling Blocking Temperature from AC-Susceptibility data for Single-Molecule Magnets","authors":"Yolimar Gil, María Mar Quesada-Moreno, Maria A. Palacios, Silvia Gómez-Coca, Enrique Colacio, Eliseo Ruiz, Daniel Aravena","doi":"10.1039/d4qi03259d","DOIUrl":"https://doi.org/10.1039/d4qi03259d","url":null,"abstract":"We present a general relation between the magnetisation blocking temperature (TB) measured using the zero-field cooling/field cooling technique (ZFC/FC) and their temperature-dependent spin relaxation time obtained from ac-susceptibility and magnetisation decay measurements. The presented mathematical approach provides ZFC/FC blocking temperatures at any heating rate (RH), providing comparable values to those obtained experimentally, as demonstrated by testing 107 examples for reported single-molecule magnets (SMMs) where the ZFC/FC curve was measured. This procedure is examined in further detail for a new single-molecule magnet [Dy(OPAd2Bz)2(H2O)4Br]Br2·4THF (1) (OPAd2Bz: di(1-adamantyl)benzylphosphine oxide). For this compound, ZFC/FC measurements were made at a broad range of heating rates (0.01 K/min - 5 K/min), which agreed with the general behaviour predicted from ac-susceptibility data. We discuss how the demagnetisation mechanism determines the sensitivity of TB with respect to the heating rate: TB is mostly insensitive to RH for Orbach relaxation, while there is a larger sensitivity for Raman-limited systems. Our conclusions provide a clear physical interpretation of ZFC/FC blocking temperatures, aiding in the proper contextualization of this figure of merit.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"55 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ultrathin two-dimensional mesoporous holmium oxide nanosheet stabilized copper nanoparticle for stable and efficiency electrocatalytic semi-hydrogenation of acetylene","authors":"Huawei Li, Miao He, Senyao Meng, Ping Wang, Cheng Yang, Jiasai Yao, Zikang Hu, Zhenxing Li","doi":"10.1039/d4qi03125c","DOIUrl":"https://doi.org/10.1039/d4qi03125c","url":null,"abstract":"The removal of acetylene (C2H2) from ethylene (C2H4) is a critical step in the production of high-purity C2H4. Due to the low reaction temperature and energy consumption and high selectivity of C2H4, the electrocatalytic semi-hydrogenation of C2H2 is the ideal method for removing C2H2. Herein, the ultrathin two-dimensional (2D) mesoporous holmium oxide nanosheet stabilized copper nanoparticle (Cu/Ho2O3) for stable and efficiency electrocatalytic semi-hydrogenation of C2H2 was prepared through a simple and one step high-temperature calcination-reduction method. The ultra-thin two-dimensional mesoporous structure of holmium oxide creates abundant coordination defects to improve the Faraday efficiency and the durability of copper nanoparticle for catalyzing the semi-hydrogenation of C2H2. The as-prepared Cu/Ho2O3 achieved the C2H4 selectivity of 99.6% and Faradaic efficiency of 98.1%, because the presence of oxygen vacancies is conducive to form electron-rich Cu nanoparticle, thereby promoting the adsorption of electrophilic C2H2 and the desorption of nucleophilic C2H4. Meanwhile the holmium oxide nanosheet with unsaturated coordination sites can stabilize the Cu nanoparticle, and the Faradaic efficiency and current density remains stable for more than 600 minutes. This work offers a promising design strategy for the stable and efficiency electrocatalyst for semi-hydrogenation reaction of C2H2 to C2H4.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"9 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wenhao Zhang, Meiyan Cui, Zhiying Zhao, Tianyu Zhu, Zhangzhen He
{"title":"Synthesis, structure and magnetic properties of ACo5(SeO3)4(OH)2F (A = Rb, Cs): the first compounds with a distorted 2-uniform lattice (T29)","authors":"Wenhao Zhang, Meiyan Cui, Zhiying Zhao, Tianyu Zhu, Zhangzhen He","doi":"10.1039/d4qi03190c","DOIUrl":"https://doi.org/10.1039/d4qi03190c","url":null,"abstract":"Based on the crystal structure of A<small><sub>2</sub></small>Cu<small><sub>5</sub></small>(TeO<small><sub>3</sub></small>)(SO<small><sub>4</sub></small>)<small><sub>3</sub></small>(OH)<small><sub>4</sub></small> (A = Na, K), two new compounds ACo<small><sub>5</sub></small>(SeO<small><sub>3</sub></small>)<small><sub>4</sub></small>(OH)<small><sub>2</sub></small>F (A = Rb, Cs) have been synthesized by introducing F<small><sup>−</sup></small> ions, achieving the extension from a one-dimensional kagomé strip lattice to a distorted 2-uniform lattice (T29). Magnetic measurements indicate that <strong>RbCo<small><sub>5</sub></small></strong> exhibits antiferromagnetic order at low temperatures, while <strong>CsCo<small><sub>5</sub></small></strong> shows canted antiferromagnetic behavior. Both compounds display a field-induced magnetic transition at their respective critical fields. To the best of our knowledge, this is the first reported synthesis of compounds with a distorted 2-uniform lattice (T29).","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"16 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoyan Liu, Tingting Huang, Hui Ding, Juan Xiao, Xiaolan Fan, Zhiwei Yu, Guan-Cheng Xu, Li Zhang
{"title":"Mn doping promotes deep surface reconstruction of CoP nanosheet arrays to drive efficient water splitting","authors":"Xiaoyan Liu, Tingting Huang, Hui Ding, Juan Xiao, Xiaolan Fan, Zhiwei Yu, Guan-Cheng Xu, Li Zhang","doi":"10.1039/d4qi02949f","DOIUrl":"https://doi.org/10.1039/d4qi02949f","url":null,"abstract":"Among the non-precious metal electrocatalysts, transition metal phosphides (TMPs) show the greatest promise, but their activity and stability still fall short of expectations. Therefore, in order to improve the catalytic activity of TMPs, doping of heteroatoms with different electronegativity becomes one of the best methods. In this paper, the Mn10 doped CoP (the molar amount of Mn accounts for 10% of the total molar amount of metal salts) nanosheet arrays were successfully loaded on coal-based carbon nanofibers (CNFs) via electrodeposition and low-temperature phosphating. Experimentally, the generated electrocatalyst of Mn10-CoP@CNFs demonstrated remarkable catalytic activity at 10 mA cm-2 in 1 M KOH solution, which only needed the overpotentials of 62 mV and 230 mV for hydrogen evolution reaction (HER) and Oxygen Evolution Reaction (OER), respectively. In-situ Raman spectroscopy was used to explore the active intermediates present under catalytic conditions. The results showed that the incorporation of Mn into CoP promoted the formation of the active layered intermediate CoOOH, thus improving the performance of OER. Prominently, at a current density of 10 mA cm-2, the catalyst also exhibited durability of more than 80 hours and an extremely low voltage of 1.537 V when it was used as the full hydrolysis catalyst. This study provides a general approach to the production of high-performance and effective catalysts for water splitting.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"78 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143367418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuwei Ye, Xuebin Jiang, Qing Liu, Shengfa Ye, Liang Deng
{"title":"[2Fe-2S] Clusters Supported by N-Heterocyclic Carbene Ligands","authors":"Yuwei Ye, Xuebin Jiang, Qing Liu, Shengfa Ye, Liang Deng","doi":"10.1039/d5qi00120j","DOIUrl":"https://doi.org/10.1039/d5qi00120j","url":null,"abstract":"The di-ferrous [2Fe-2S]0 state is the least understood oxidation level of [2Fe-2S] rhomb that is the smallest module of iron–sulfur clusters in enzymes. Reported synthetic models of the [2Fe-2S]0 state utilize bulky anionic ligands to achieve their stabilization, and their highly reducing nature renders detailed structural and spectroscopic studies difficult. Herein, we report the stabilization of the di-ferrous [2Fe-2S]0 state by using N-heterocyclic carbene (NHC) as supporting ligands. The charge-neutral cluster [Fe2(μ-S)2(ICy)4] (1, ICy = 1,3-bis-cyclohexyl-imidazol-2-ylidene) is synthesized from the reaction of the iron(0) precursor [(ICy)2Fe(η2-CH2=CHSiMe3)] with SPPh3. The attenuated reducing power of 1 as compared to those supported by anionic ligands allows its isolation in pure form. Further spectroscopic and theoretical studies established its S = 0 ground state resulting from anti-ferromagnetic coupling of two high-spin ferrous sites with an exchange-coupling constant J = -208 cm-1. The NHC ligand is also capable of stabilizing the mix-valent complex [Fe2(μ-S)2(ICy)4][BPh4] (2), which is synthesized from the reaction of 1 with [Cp2Fe][BPh4] and identified as a Robin-Day Class II complex with an S = ½ ground state.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"55 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143367432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhangtong Han, Qianwen Guan, Huang Ye, Yi Liu, Jianbo Wu, Lijun Xu, Chengshu Zhang, Hang Li, Qiuxiao Yin, Junhua Luo
{"title":"Multilayered Double Perovskite Ferroelectric for Green High-Performance Self-Powered X-ray Detection","authors":"Zhangtong Han, Qianwen Guan, Huang Ye, Yi Liu, Jianbo Wu, Lijun Xu, Chengshu Zhang, Hang Li, Qiuxiao Yin, Junhua Luo","doi":"10.1039/d4qi03059a","DOIUrl":"https://doi.org/10.1039/d4qi03059a","url":null,"abstract":"Layered hybrid perovskite ferroelectrics have made significant strides in high-performance X-ray detection, attributed to their polarization-induced large built-in electric fields and excellent carrier mobility. However, most reported layered hybrid perovskite ferroelectrics rely on environmentally hazardous lead halides, which limits their broader application. Recently developed hybrid double perovskites offer promising alternatives for green self-driven X-ray detection. Herein, we explore the bulk photovoltaic effect in 2D multilayered double perovskite ferroelectric CHMA2CsAgBiBr7 (CCAB, CHMA = cyclohexylmethylammonium) for self-driven X-ray detection. Due to its multilayer structure, CCAB exhibits a large μτ product of 3.3 × 10−3 cm2 V−1, which is comparable to three-dimensional double perovskite Cs2AgBiBr6. Specifically, the X-ray detector exhibits photovoltaics of 0.84 V under X-ray irradiation, ensuring the capability to transfer X-ray into electric signal without bias. Additionally, CCAB endows a high sensitivity up to 120 μC Gy−1 cm−2 and a low detection limit down to 103 nGy s−1 at self-driven mode. Our work highlights the potential of lead-free multilayered double perovskite ferroelectrics for achieving high-performance self-driven X-ray detection, paving the way for practical applications of layered hybrid perovskite ferroelectrics in this field.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"141 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ziyi Shui, Huiying Tian, Hang Mu, Liuyun Xu, Xiaoming Gao, Xi Chen
{"title":"Mn doping regulating electronic structure of Co3O4 to construct dual active sites for Oxygen electrocatalysis","authors":"Ziyi Shui, Huiying Tian, Hang Mu, Liuyun Xu, Xiaoming Gao, Xi Chen","doi":"10.1039/d4qi03005b","DOIUrl":"https://doi.org/10.1039/d4qi03005b","url":null,"abstract":"Efficient bifunctional catalysts for oxygen reduction reactions (ORR) and oxygen evolution reactions (OER) are crucial for rechargeable Zn-air batteries (ZABs). However, these catalysts often suffer from poor O<small><sub>2</sub></small> conversion efficiency and a lack of dual active sites for oxygen reactions. Regulating electronic structure through element doping is an efficient solution to construct dual active sites of catalysts. Nevertheless, the mechanisms of O<small><sub>2</sub></small> adsorption/activation, the nature of the reaction active sites, and the associated energy barriers remain poorly understood. Herein, we report on a Mn-doped Co<small><sub>3</sub></small>O<small><sub>4</sub></small> (MnCo<small><sub>2</sub></small>O<small><sub>4</sub></small>) bimetallic oxide. The impact of Mn doping on the ORR/OER performance of Co<small><sub>3</sub></small>O<small><sub>4</sub></small> is investigated by both density functional theory (DFT) calculations and experimental methods. The DFT findings indicate that Mn doping modifies the electronic structure, activates Co sites in Co<small><sub>3</sub></small>O<small><sub>4</sub></small>, and introduces new Mn active sites, resulting in dual active sites for OER/ORR. As predicted, MnCo<small><sub>2</sub></small>O<small><sub>4</sub></small> exhibits remarkable ORR/OER performance, with a potential difference (ΔE) as low as 0.87 V, which is 0.11 V smaller than that of Co<small><sub>3</sub></small>O<small><sub>4</sub></small>. Furthermore, Rechargeable ZAB delivers a narrow discharge-charge voltage gap (0.76 V), high cycle stability over long periods (90 h), and outputs a peak power density of up to 97 mW·cm<small><sup>-2</sup></small> in a liquid system. Such excellent results demonstrate that Mn-Co bimetallic synergistic catalysis is an effective strategy for improving ORR/OER selectivity.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"40 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Songlin Yan, Weihong Liu, Jianjun Long, Kun Wang, Qilu Yao, Gang Feng, Zhang-Hui Lu
{"title":"Photothermal conversion enhances selective hydrogenation over MOF-derived Cu-MoO2 interfaces at ambient condition","authors":"Songlin Yan, Weihong Liu, Jianjun Long, Kun Wang, Qilu Yao, Gang Feng, Zhang-Hui Lu","doi":"10.1039/d4qi03188a","DOIUrl":"https://doi.org/10.1039/d4qi03188a","url":null,"abstract":"The selective hydrogenation of nitroaromatic compounds to produce phenylamines plays a crucial role in various industrial processes. Here we introduce a Cu-MoO2@C catalyst which is synthesized by pyrolyzing a polyoxometalate-based metal-organic framework (POMOF), exhibiting remarkable catalytic efficiency in the selective hydrogenation of nitroaromatics. Specifically, nearly 100% conversion and 97% selectivity in hydrogenation of 4-nitrostyrene (4-NS) to 4-aminostyrene (4-AS) was achieved over Cu-MoO2@C catalyst under light irradiation. This promoted yield of 4-AS is ascribed to the plasmonic photothermal effect of Cu nanoparticles (NPs) which facilitate efficient photothermal conversion, as well as the strong electronic interactions at Cu/MoO2 interfaces which facilitate the selective reduction of the N=O bond and minimizing reduction of the C=C bond. Furthermore, the Cu-MoO2@C catalyst demonstrates outstanding stability, maintaining high catalytic activity across eight cycles with minimal performance degradation. Its versatility was evidenced by the effective hydrogenation of a variety of nitroaromatic substrates containing different reducible functional groups. This study underscores the potential of Cu-MoO2@C as an efficient, stable, and adaptable catalyst for the selective hydrogenation of nitroaromatic compounds, presenting a promising solution for industrial applications.","PeriodicalId":79,"journal":{"name":"Inorganic Chemistry Frontiers","volume":"44 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143258364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}