Inorganic Chemistry最新文献

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Na3Y2F3P2O8 and K4Y3F5P4O14: [YOF] Polyhedra Inducing Birefringence Enhancement in Non-π-Conjugated Phosphate Systems
IF 4.6 2区 化学
Inorganic Chemistry Pub Date : 2025-02-20 DOI: 10.1021/acs.inorgchem.5c00117
Jiawei Zhao, Wei Wei, Meihui Chen, Donghai An, Yanna Chen, Hongsheng Shi
{"title":"Na3Y2F3P2O8 and K4Y3F5P4O14: [YOF] Polyhedra Inducing Birefringence Enhancement in Non-π-Conjugated Phosphate Systems","authors":"Jiawei Zhao, Wei Wei, Meihui Chen, Donghai An, Yanna Chen, Hongsheng Shi","doi":"10.1021/acs.inorgchem.5c00117","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00117","url":null,"abstract":"In this paper, two novel compounds Na<sub>3</sub>Y<sub>2</sub>F<sub>3</sub>P<sub>2</sub>O<sub>8</sub> and K<sub>4</sub>Y<sub>3</sub>F<sub>5</sub>P<sub>4</sub>O<sub>14</sub> were synthesized via high-temperature solid-state reactions. Na<sub>3</sub>Y<sub>2</sub>F<sub>3</sub>P<sub>2</sub>O<sub>8</sub> and K<sub>4</sub>Y<sub>3</sub>F<sub>5</sub>P<sub>4</sub>O<sub>14</sub> respectively crystallize in space group <i>P</i>2<sub>1</sub>/<i>c</i> and <i>P</i>1̅. These two compounds both feature [YOF] polyhedra and [PO<sub>4</sub>] tetrahedra. Theoretical calculations show that Na<sub>3</sub>Y<sub>2</sub>F<sub>3</sub>P<sub>2</sub>O<sub>8</sub> and K<sub>4</sub>Y<sub>3</sub>F<sub>5</sub>P<sub>4</sub>O<sub>14</sub> exhibit moderate band gaps (5.211 and 5.208 eV, respectively) and birefringence values (0.027 and 0.023 at 1064 nm, respectively). Compared with the single alkali metal phosphate A<sub>3</sub>PO<sub>4</sub> (A = Na, K), the birefractive indices are significantly enhanced, whereas the band gaps are slightly reduced. The calculation shows that the [YOF] polyhedron is the main reason for the enhancement of the birefractive index. Similarly, the [YOF] polyhedron also exhibits a significant birefringent gain in compounds containing [SO<sub>4</sub>] tetrahedra. This study advances structural chemistry within the domain of rare-earth phosphates and offers a novel approach for designing phosphates with moderate birefringence.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"130 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Luteolin-Manganese Nanozyme Induces Apoptosis and Ferroptosis for Enhanced Cancer Therapy.
IF 4.3 2区 化学
Inorganic Chemistry Pub Date : 2025-02-19 DOI: 10.1021/acs.inorgchem.4c05083
Gang Xiang, Hui Wang, Changfang Lu, Siyuan Yu, Aimin Wu, Xianxiang Wang
{"title":"Luteolin-Manganese Nanozyme Induces Apoptosis and Ferroptosis for Enhanced Cancer Therapy.","authors":"Gang Xiang, Hui Wang, Changfang Lu, Siyuan Yu, Aimin Wu, Xianxiang Wang","doi":"10.1021/acs.inorgchem.4c05083","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05083","url":null,"abstract":"<p><p>Cancer presents a significant global public health challenge that impacts millions of individuals worldwide. The incorporation of natural products into cancer treatment has the potential to mitigate many of the side effects commonly associated with chemotherapy. This study builds on the advantages of enhancing the anticancer activity of natural flavonoids through metal chelation by synthesizing a natural antioxidant flavonoid complex, termed Lu-Mn nanozyme, which involves the chelation of luteolin with manganese ions. In vitro experiments demonstrated that Lu-Mn exhibits a strong affinity for hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) and effectively catalyzes the generation of hydroxyl radicals (•OH) from H<sub>2</sub>O<sub>2</sub> within the tumor microenvironment. The administration of the Lu-Mn nanozyme not only induced apoptosis in tumor cells by upregulating the expression of cleaved caspase3 and caspase9 but also activated ferroptosis through downregulation of the NRF2-GPX4 signaling pathway. Furthermore, animal studies have shown that Lu-Mn possesses significant antitumor efficacy and a favorable safety profile. Collectively, these findings suggest that luteolin, through its chelation with metal ions, has considerable potential for application in cancer treatment.</p>","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143447281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ZnH2 as a Precursor to Catalytically Active Ru–ZnH Heterometallic Complexes
IF 4.6 2区 化学
Inorganic Chemistry Pub Date : 2025-02-19 DOI: 10.1021/acs.inorgchem.4c05360
Anne-Frédérique Pécharman, Ambre Carpentier, John P. Lowe, Stuart A. Macgregor, Mary F. Mahon, Michael K. Whittlesey
{"title":"ZnH2 as a Precursor to Catalytically Active Ru–ZnH Heterometallic Complexes","authors":"Anne-Frédérique Pécharman, Ambre Carpentier, John P. Lowe, Stuart A. Macgregor, Mary F. Mahon, Michael K. Whittlesey","doi":"10.1021/acs.inorgchem.4c05360","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05360","url":null,"abstract":"Reaction of [Ru(IPr)<sub>2</sub>(CO)H][BAr<sup>F</sup><sub>4</sub>] (<b>1</b>; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene; BAr<sup>F</sup><sub>4</sub> = B{3,5(CF<sub>3</sub>)<sub>2</sub>C<sub>6</sub>H<sub>3</sub>}<sub>4</sub>) with an excess of ZnH<sub>2</sub> in THF gives the structurally characterized neutral Ru(ZnH) complex [Ru(IPr)<sub>2</sub>(CO)(ZnH)H<sub>3</sub>] (<b>6</b>) and Ru(ZnH)<sub>2</sub> salt [Ru(IPr)<sub>2</sub>(CO)(ZnH)<sub>2</sub>H<sub>3</sub>][BAr<sup>F</sup><sub>4</sub>] (<b>5</b>). Crystallographic and computational analyses show the presence of both bridging Ru–H–Zn hydrides and terminal Ru-hydrides in the two products. Calculations also identify a low-energy H/ZnH exchange pathway that rationalizes the experimentally observed (EXSY) fluxionality of the hydrides in <b>5</b>. At room temperature, this compound undergoes stoichiometric exchange with ZnMe<sub>2</sub> to give [Ru(IPr)<sub>2</sub>(CO)(ZnMe)<sub>2</sub>H<sub>3</sub>][BAr<sup>F</sup><sub>4</sub>] (<b>7</b>), and also proves to be catalytically active for the hydrogenation of 1-hexene and 5-hexene-2-one.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"29 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Periodic Macroporous K2Ta2O6 Fabricated for Photocatalytic Hydrogen Production from Pure Water Splitting.
IF 4.3 2区 化学
Inorganic Chemistry Pub Date : 2025-02-19 DOI: 10.1021/acs.inorgchem.4c05279
Shaoqiang You, Yuan Liu, Ling Zhou, Ping Niu, Junchao Wei, Rongbin Zhang, Xuewen Wang
{"title":"Periodic Macroporous K<sub>2</sub>Ta<sub>2</sub>O<sub>6</sub> Fabricated for Photocatalytic Hydrogen Production from Pure Water Splitting.","authors":"Shaoqiang You, Yuan Liu, Ling Zhou, Ping Niu, Junchao Wei, Rongbin Zhang, Xuewen Wang","doi":"10.1021/acs.inorgchem.4c05279","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05279","url":null,"abstract":"<p><p>Periodic macroporous materials are extensively utilized in photocatalytic hydrogen production from water splitting owing to their smooth mass transfer and abundant active sites. Therefore, it is essential to develop highly stable materials featuring interconnected channels and appropriate surface states to enhance the photocatalytic capability. Periodic macroporous K<sub>2</sub>Ta<sub>2</sub>O<sub>6</sub> (PM-K<sub>2</sub>Ta<sub>2</sub>O<sub>6</sub>) with a pyrochlore structure emerges as the ideal candidate to fulfill these requirements. Adding oxygen vacancies to PM-K<sub>2</sub>Ta<sub>2</sub>O<sub>6</sub> also makes it easier for localized energy levels to develop inside the bandgap, which improves light absorption and maximizes surface active sites. In comparison to nonporous K<sub>2</sub>Ta<sub>2</sub>O<sub>6</sub>, PM-K<sub>2</sub>Ta<sub>2</sub>O<sub>6</sub> exhibits a broad light absorption band, rapid carrier transfer rates, prolonged photogenerated carrier lifetimes, high surface area, and abundant active sites, thus enabling stable photocatalytic hydrogen production from pure water. During surface photochemical reactions, the photogenerated electrons and holes in PM-K<sub>2</sub>Ta<sub>2</sub>O<sub>6</sub> are more readily trapped and subsequently participate in pure water splitting. The H<sub>2</sub> produced by PM-K<sub>2</sub>Ta<sub>2</sub>O<sub>6</sub> is 1285.91 μmol g<sup>-1</sup> in the 5 h H<sub>2</sub> production test. Herein, we propose a strategy for developing periodic macropore catalysts capable of efficiently decomposing pure water to produce H<sub>2</sub> without necessitating cocatalysts.</p>","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143447283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mn4+-Activated Oxyfluoride CsNaWO2F4 Phosphor: Enhancement in the Water Stability and Thermal-Quenching Resistance
IF 4.6 2区 化学
Inorganic Chemistry Pub Date : 2025-02-19 DOI: 10.1021/acs.inorgchem.4c05569
Wenfa Fang, Yifan Yang, Yunzheng Liu, Daoyuan Ma, Jinliang Huang, Biqing Song, Libin Xia
{"title":"Mn4+-Activated Oxyfluoride CsNaWO2F4 Phosphor: Enhancement in the Water Stability and Thermal-Quenching Resistance","authors":"Wenfa Fang, Yifan Yang, Yunzheng Liu, Daoyuan Ma, Jinliang Huang, Biqing Song, Libin Xia","doi":"10.1021/acs.inorgchem.4c05569","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05569","url":null,"abstract":"Mn<sup>4+</sup>-activated oxyfluoride phosphors play an important role in solid-state lighting and display areas due to the suitable red-light emission. However, the hydrolysis and thermal quenching of the phosphors restrict their practical applications. In this work, we prepared a novel CsNaWO<sub>2</sub>F<sub>4</sub>:Mn<sup>4+</sup> oxyfluoride phosphor with high water stability and better thermal-quenching resistance; similar phosphors X<sub>2</sub>WO<sub>2</sub>F<sub>4</sub>:Mn<sup>4+</sup> (X = Na, Cs) were used as reference. A new structure model and CIF files were established by simulation. Theoretical calculations and experiments were performed to investigate the increase in water stability and thermal-quenching resistance. The luminous properties are also discussed in detail. The results show that CsNaWO<sub>2</sub>F<sub>4</sub>:Mn<sup>4+</sup> exhibits a superior moisture resistance, maintaining 92.2% of the initial intensity when soaked in deionized water for 1 h and 81.7% for 24 h. A favorable thermal-quenching resistance is obtained compared with the reference, retaining about 50% of its initial intensity at 373 K. Furthermore, the WLED device fabricated with as-prepared CsNaWO<sub>2</sub>F<sub>4</sub>:Mn<sup>4+</sup> phosphors, YAG:Ce<sup>3+</sup> phosphors, and a 455 nm chip achieved a correlated color temperature (CCT) of 4701 K, a color rendering index (Ra) of 81.9, and a lumen efficiency of 142.52 lm/W.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"15 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrochemical Gating of Host-Guest Charge-Transfer Interactions Enabled by Viologen-like Functionality Engineered Metal-Organic Frameworks.
IF 4.3 2区 化学
Inorganic Chemistry Pub Date : 2025-02-19 DOI: 10.1021/acs.inorgchem.5c00286
Min Zhou, Shan Huang, Pengcheng Huang, Fang-Ying Wu
{"title":"Electrochemical Gating of Host-Guest Charge-Transfer Interactions Enabled by Viologen-like Functionality Engineered Metal-Organic Frameworks.","authors":"Min Zhou, Shan Huang, Pengcheng Huang, Fang-Ying Wu","doi":"10.1021/acs.inorgchem.5c00286","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00286","url":null,"abstract":"<p><p>Using electrochemically responsive metal-organic frameworks (MOFs) as host matrices to afford gating properties for functional guests is rather attractive but remains unexplored. Herein, a series of functionalized Zr-MOFs with viologen-like skeletons were created by engineering 2,2'-bipyridinium bay substitution with different alkyl chains. Of the series, benefiting from the enhanced rigidity, the one bearing <i>N</i>,<i>N</i>'-ethylene bridge, UiO-67-EE, exhibited the strongest electron deficiency due to the lowest LUMO level, thereby leading to efficient electron transfer and favorable redox activity, which further endowed it with outstanding electrochromic properties. More importantly, the highly electron-deficient framework of UiO-67-EE could allow the accommodation of electron-rich guest molecules through host-guest charge transfer (CT) interactions. By leveraging the electroresponsiveness of the viologen-like functionality, UiO-67-EE served as an adaptable platform for controlled guest release and capture through efficient control of dynamic CT interactions upon stimuli of alternate potentials. This smart electrochemical gating behavior of the host-guest systems was also monitored in real time by distinguishable optical changes of the guests. Besides, it was exploited to develop high-performance sensing platforms by integrating a molecular gate constructed from the target-aptamer complex.</p>","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143447278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermally Activated Delayed Fluorescence of Organic–Inorganic Hybrid Menshutkin-Type Cu–Sb Halides
IF 4.6 2区 化学
Inorganic Chemistry Pub Date : 2025-02-19 DOI: 10.1021/acs.inorgchem.4c05573
Yi-Tong Lin, Yang-Peng Lin, Hao-Wei Lin, Yi Liu, Abdusalam Ablez, Dan-Dan Huang, Jie-Ru Yang, Xue-Xia Lu, Guan-Lei Gao, Xing-Hui Qi, Ke-Zhao Du, Xiao-Ying Huang
{"title":"Thermally Activated Delayed Fluorescence of Organic–Inorganic Hybrid Menshutkin-Type Cu–Sb Halides","authors":"Yi-Tong Lin, Yang-Peng Lin, Hao-Wei Lin, Yi Liu, Abdusalam Ablez, Dan-Dan Huang, Jie-Ru Yang, Xue-Xia Lu, Guan-Lei Gao, Xing-Hui Qi, Ke-Zhao Du, Xiao-Ying Huang","doi":"10.1021/acs.inorgchem.4c05573","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05573","url":null,"abstract":"Organic–inorganic hybrid metal halides have attracted much attention due to their excellent optoelectronic properties. The heterometallic structure is expected to achieve more complex luminescence centers, thereby improving the tunability of the fluorescent materials. This paper reports the synthesis of crystals [Cu(2,2′-bpy)(PPh<sub>3</sub>)<sub>2</sub>][CuCl<sub>2</sub>(PPh<sub>3</sub>)<sub>2</sub>Sb<sub>2</sub>OCl<sub>4</sub>] (<b>1</b>, 2,2′-bpy = 2,2′-bipyridine, PPh<sub>3</sub> = triphenylphosphine) and (Mim)<sub>2</sub>[Sb<sub>2</sub>OCl<sub>6</sub>] (<b>2</b>, Mim = 1-methylimidazole). Crystal <b>1</b> is a new Menshutkin-type compound with a double-layer hamburger-type structure, which is characterized by main group metal (lone pair)···π (arene) supramolecular interactions. Crystal <b>1</b> shows bright yellow light emission at room temperature and has thermally activated delayed fluorescence (TADF) characteristic with more than twice the increase of PL intensity from 170 to 320 K. The emission of crystal <b>1</b> arises from the charge transfer of the cation unit, as confirmed by the comparison study of crystals <b>1</b> and <b>2</b>. Density functional theory (DFT) calculations further clarify that the enhanced PL performance and narrower bandgap are from the additional Cu(I) unit. Crystal <b>1</b> has good thermal stability and air stability, ensuring its anti-counterfeiting application. This work provides a new strategy for the construction of a Cu–Sb heterometallic compound.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"50 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilization of High-Silicon Iron Ore Tailings for 4N8 High-Purity Quartz Powder Production via Two-Stage Acid Leaching
IF 4.6 2区 化学
Inorganic Chemistry Pub Date : 2025-02-19 DOI: 10.1021/acs.inorgchem.4c04882
Hailin Long, Xianqing Xu, Siwei Li, Deqing Zhu, Jian Pan, Zhengqi Guo
{"title":"Utilization of High-Silicon Iron Ore Tailings for 4N8 High-Purity Quartz Powder Production via Two-Stage Acid Leaching","authors":"Hailin Long, Xianqing Xu, Siwei Li, Deqing Zhu, Jian Pan, Zhengqi Guo","doi":"10.1021/acs.inorgchem.4c04882","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c04882","url":null,"abstract":"This study investigates the process mechanisms for preparing 4N8 high-purity quartz powder from high-silicon iron ore tailings. Silicon concentrate obtained by wet high-intensity magnetic separation was used as the raw material, with impurities removed through a two-stage acid leaching process. The effects of acid concentration, temperature, time, and liquid–solid ratio on impurity removal were examined. Thermodynamic analysis shows that HF enhances the dissolution of Fe and Al impurities. In the first stage, response surface optimization determined the optimal conditions: acid concentration of 11.69 mol/L, temperature of 99.5 °C, and reaction time of 6.3 h, yielding SiO<sub>2</sub> purity of 99.949%. Kinetic analysis indicates Fe leaching is controlled by a chemical reaction (activation energy: 66.69 kJ/mol), while Al leaching is limited by internal diffusion (activation energy: 13.64 kJ/mol). The second-stage leaching, conducted at 10 mol/L acid concentration, 250 °C, and a liquid–solid ratio of 5:1 for 9 h, further reduced impurities. The final 4N8 high-purity quartz powder was obtained through fine grinding and high-temperature treatment. These findings provide theoretical guidance for the high-value utilization of iron ore tailings in applications such as semiconductors and photovoltaics.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"52 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metal Doped Multicomponent Copper-Based Arrays for Formaldehyde Oxidation Assisted Dual Hydrogen Production System
IF 4.6 2区 化学
Inorganic Chemistry Pub Date : 2025-02-19 DOI: 10.1021/acs.inorgchem.4c05338
Hongjie Yu, Wenke Liu, Shaojian Jiang, Yuhang Liu, Ruidong Yang, Lijun Zhang, Kai Deng, Hongjing Wang, Liang Wang
{"title":"Metal Doped Multicomponent Copper-Based Arrays for Formaldehyde Oxidation Assisted Dual Hydrogen Production System","authors":"Hongjie Yu, Wenke Liu, Shaojian Jiang, Yuhang Liu, Ruidong Yang, Lijun Zhang, Kai Deng, Hongjing Wang, Liang Wang","doi":"10.1021/acs.inorgchem.4c05338","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05338","url":null,"abstract":"Green hydrogen production technology is an effective strategy for solving energy problems and environmental issues. In this paper, we report a bipolar hydrogen production system: Au–Cu<sub><i>x</i></sub>O/CF∥Ru–Cu<sub><i>x</i></sub>O/CF, in which the cathode produces hydrogen through the hydrogen evolution reaction (HER) process and the anode produces hydrogen through a formaldehyde oxidation reaction (FOR). It is found that when Au–Cu<sub><i>x</i></sub>O/CF is used in FOR, the C–H bond of formaldehyde will be broken at low potential to produce reactive hydrogen H*. H* is recombined through the Tafel step (H* + H* ⇌ H<sub>2</sub>) to produce H<sub>2</sub>. At the same time, the formaldehyde is oxidized to a high-value-added product HCOOH. We found that the formation of grain boundary-rich structures on the Au–Cu<sub><i>x</i></sub>O surface jointly promotes the oxidation of formaldehyde at low potentials. In addition, we introduced Ru elements into Cu<sub><i>x</i></sub>O to enhance the cathodic HER. The FOR-HER system of Au–Cu<sub><i>x</i></sub>O/CF∥Ru–Cu<sub><i>x</i></sub>O/CF was tested in a flow cell. It produced a current density of 500 mA cm<sup>–2</sup> at a potential of only 0.38 V. This work provides system construction and catalyst design ideas for bipolar hydrogen production at low voltages.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"66 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nucleation Roadmap of Reduced Polyoxovanadate-Alkoxide Clusters
IF 4.6 2区 化学
Inorganic Chemistry Pub Date : 2025-02-19 DOI: 10.1021/acs.inorgchem.4c04759
S. Genevieve Duggan, S. M. Gulam Rabbani, Pere Miró
{"title":"Nucleation Roadmap of Reduced Polyoxovanadate-Alkoxide Clusters","authors":"S. Genevieve Duggan, S. M. Gulam Rabbani, Pere Miró","doi":"10.1021/acs.inorgchem.4c04759","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c04759","url":null,"abstract":"Polyoxovanadate-alkoxides are a growing family of earth-abundant first-row transition metal polynuclear species highly promising for their tunable redox properties. The speciation and nucleation chemical space of these species is divided into two groups: 1) fully oxidized V(V) monomeric precursors that aggregate into Lindqvist-type clusters and 2) reduced V(IV) precursors forming cyclic structures. The nucleation of cyclic polyoxovanadate-alkoxides with varying alkyl chain lengths, the impact of the presence of templating anions, and their subsequent evolution to the Lindqvist-type congener were studied by using density functional theory. The evolution of cyclic polyoxovanadate-alkoxides to oxygen-vacant cluster structures was found to be endergonic, in agreement with previous experimental work. Moreover, the reactivity with traces of water in alcohol solvents was confirmed to be the main thermodynamic driving force toward the formation of the mixed-valent Lindqvist-type polyoxovanadate species.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"25 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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