Pub Date : 2025-04-20DOI: 10.1021/acs.inorgchem.4c05017
Yohannes Getahun, Ana C. Martinez, Mario Rodriguez, Alexis Maurel, Daisy Lopez, Eunja Kim, Graham King, Harikrishnan S. Nair
To develop economically and environmentally viable sodium-based solid-state batteries, we investigated Na2(Ni2–xCox)TeO6 (x = 0, 0.10, 0.25). After synthesizing phase-pure compositions, we confirmed P63/mcm space group and P2 coordination through high-resolution synchrotron diffraction data, where Na+ occupies three different crystallographic positions in the unit cell: Na1, Na2, and Na3. With the incorporation of cobalt into the nickel lattice, an increase in the cell volume is seen. Bond parameters show that the average Ni–Ni distance increases as a result, but the local structure and coordination do not show marked differences. Our density functional theory calculations revealed that sodium at the Na1 site is energetically more favorable and that Co doping increased the lattice constants, supported by our X-ray diffraction data. Electrochemical measurements performed on half-cells versus sodium metal using CR2032-type coin cells revealed exceptionally high specific capacity matching the theoretical value and retained around 120 mAhg–1 at the smallest but optimum concentration of cobalt. The kinetics of storage mechanisms in these compositions reflect pseudo-capacitive behavior. Our results indicate that substitution pathways in the layered oxide family of Na2Ni2TeO6 offer the potential for the development of Na-based cathodes with enhanced cycling stability and ionic conductivity.
{"title":"Electrochemical Performance of Layered Honeycomb Na2(Ni2–xCox)TeO6 (x = 0, 0.10, 0.25) Oxides as Sodium-Ion Battery Cathodes","authors":"Yohannes Getahun, Ana C. Martinez, Mario Rodriguez, Alexis Maurel, Daisy Lopez, Eunja Kim, Graham King, Harikrishnan S. Nair","doi":"10.1021/acs.inorgchem.4c05017","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05017","url":null,"abstract":"To develop economically and environmentally viable sodium-based solid-state batteries, we investigated Na<sub>2</sub>(Ni<sub>2–<i>x</i></sub>Co<sub><i>x</i></sub>)TeO<sub>6</sub> (<i>x</i> = 0, 0.10, 0.25). After synthesizing phase-pure compositions, we confirmed <i>P</i>6<sub>3</sub>/<i>mcm</i> space group and P2 coordination through high-resolution synchrotron diffraction data, where Na<sup>+</sup> occupies three different crystallographic positions in the unit cell: Na1, Na2, and Na3. With the incorporation of cobalt into the nickel lattice, an increase in the cell volume is seen. Bond parameters show that the average Ni–Ni distance increases as a result, but the local structure and coordination do not show marked differences. Our density functional theory calculations revealed that sodium at the Na1 site is energetically more favorable and that Co doping increased the lattice constants, supported by our X-ray diffraction data. Electrochemical measurements performed on half-cells versus sodium metal using CR2032-type coin cells revealed exceptionally high specific capacity matching the theoretical value and retained around 120 mAhg<sup>–1</sup> at the smallest but optimum concentration of cobalt. The kinetics of storage mechanisms in these compositions reflect pseudo-capacitive behavior. Our results indicate that substitution pathways in the layered oxide family of Na<sub>2</sub>Ni<sub>2</sub>TeO<sub>6</sub> offer the potential for the development of Na-based cathodes with enhanced cycling stability and ionic conductivity.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"3 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853813","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}
Pub Date : 2025-04-20DOI: 10.1021/acs.inorgchem.4c05173
Miao Zhang, Lihua Liu, Yizhen Song, Mengmeng Hou, Lin Sun, Pengtao Ma
Photochromic materials are increasingly attracting attention for their potential applications in smart devices. Here, a novel organic–inorganic hybrid Zr-containing polyoxometalate [H2N(CH3)2]10H8[Zr(DL-tart)2(SbW17ZrO58)2]·36H2O (DL-tartH4 = dl-Tartaric Acid) (1) was synthesized. The dimeric polyanion of 1 contains two Dawson-like {SbW17ZrO58}7– subunits bridged by one {Zr(DL-tart)2}4– connector. Interestingly, compound 1 exhibits a rapid photochromic response with a half-life (t1/2) of 6.62 s, good reversibility, and an easy fading process in an air environment. Notably, compound 1 also retains its photochromic behavior upon exposure to visible light irradiation.
{"title":"Dimeric Organic–Inorganic Hybrid Zr-Substituted Antimonotungstate-Featured Photochromic Responses","authors":"Miao Zhang, Lihua Liu, Yizhen Song, Mengmeng Hou, Lin Sun, Pengtao Ma","doi":"10.1021/acs.inorgchem.4c05173","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05173","url":null,"abstract":"Photochromic materials are increasingly attracting attention for their potential applications in smart devices. Here, a novel organic–inorganic hybrid Zr-containing polyoxometalate [H<sub>2</sub>N(CH<sub>3</sub>)<sub>2</sub>]<sub>10</sub>H<sub>8</sub>[Zr(DL-tart)<sub>2</sub>(SbW<sub>17</sub>ZrO<sub>58</sub>)<sub>2</sub>]·36H<sub>2</sub>O (DL-tartH<sub>4</sub> = <span>dl</span>-Tartaric Acid) <b>(1)</b> was synthesized. The dimeric polyanion of <b>1</b> contains two Dawson-like {SbW<sub>17</sub>ZrO<sub>58</sub>}<sup>7–</sup> subunits bridged by one {Zr(DL-tart)<sub>2</sub>}<sup>4–</sup> connector. Interestingly, compound <b>1</b> exhibits a rapid photochromic response with a half-life (<i>t</i><sub>1/2</sub>) of 6.62 s, good reversibility, and an easy fading process in an air environment. Notably, compound <b>1</b> also retains its photochromic behavior upon exposure to visible light irradiation.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"44 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853814","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}
Efficiently converting CO2 into valuable chemicals under mild conditions is extremely challenging due to its thermodynamic and kinetic stability. The carboxylation/cyclization of alkynes catalyzed by Cu or Ag nanoparticles (NP) is one of the green pathways for CO2 utilization. However, these reactions are often limited by harsh conditions, as well as the migration, aggregation, and leakage of metal NP during the reaction. Herein, the AgxCuy heterostructure alloy NP are surrounded by a porous metal–organic framework, forming core–shell AgxCuy@ZIF-8 catalysts. Thanks to the light-to-heat capability, these catalysts exhibited excellent catalytic activity in converting various alkynes and CO2 to alkynyl carboxylic acids and promoting the cyclization reactions of propargyl amines with CO2 under ambient conditions using blue LED irradiation. The remarkable catalytic activity of Ag1Cu1@ZIF-8 is attributed to the optimized electronic states of Ag and Cu NP, as well as the core–shell structure that enhances photothermal effects around the catalytic center. In addition, the ZIF-8 shell not only improves the substrate transport but also inhibits the aggregation, migration, and loss of alloy NP cores during the reaction, contributing to enhanced cycling performance compared to unencapsulated Ag1Cu1 NP. The catalytic reaction mechanisms were disclosed by a variety of spectral characterizations, control experiments, and DFT calculations.
{"title":"Interfacial Electron Modulation of AgxCuy@ZIF-8 for Photothermally Catalyzing CO2 Organic Transformations","authors":"Cheng Liu, Yilei Cao, Chaorong Qi, Huanfeng Jiang, Yanwei Ren","doi":"10.1021/acs.inorgchem.5c00905","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00905","url":null,"abstract":"Efficiently converting CO<sub>2</sub> into valuable chemicals under mild conditions is extremely challenging due to its thermodynamic and kinetic stability. The carboxylation/cyclization of alkynes catalyzed by Cu or Ag nanoparticles (NP) is one of the green pathways for CO<sub>2</sub> utilization. However, these reactions are often limited by harsh conditions, as well as the migration, aggregation, and leakage of metal NP during the reaction. Herein, the Ag<sub><i>x</i></sub>Cu<sub><i>y</i></sub> heterostructure alloy NP are surrounded by a porous metal–organic framework, forming core–shell Ag<sub><i>x</i></sub>Cu<sub><i>y</i></sub>@ZIF-8 catalysts. Thanks to the light-to-heat capability, these catalysts exhibited excellent catalytic activity in converting various alkynes and CO<sub>2</sub> to alkynyl carboxylic acids and promoting the cyclization reactions of propargyl amines with CO<sub>2</sub> under ambient conditions using blue LED irradiation. The remarkable catalytic activity of Ag<sub>1</sub>Cu<sub>1</sub>@ZIF-8 is attributed to the optimized electronic states of Ag and Cu NP, as well as the core–shell structure that enhances photothermal effects around the catalytic center. In addition, the ZIF-8 shell not only improves the substrate transport but also inhibits the aggregation, migration, and loss of alloy NP cores during the reaction, contributing to enhanced cycling performance compared to unencapsulated Ag<sub>1</sub>Cu<sub>1</sub> NP. The catalytic reaction mechanisms were disclosed by a variety of spectral characterizations, control experiments, and DFT calculations.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"35 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143849906","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}
A reaction mechanism of water oxidation involving a mononuclear RuIV-oxo complex (1) as an intermediate with use of (NH4)2[CeIV(NO3)6] (CAN) as an oxidant has been scrutinized to provide a clear view of O–O bond formation and O2 release. This work includes the spectroscopic and theoretical characterization of an end-on RuIII-superoxo complex (3), together with the crystallographic characterization of a side-on RuIV-peroxo complex (4) which should be in equilibrium with 3 in an aqueous solution. The formation of the RuV-oxo intermediate as a responsible species for the water oxidation was supported by a square wave voltammogram of 1 in an aqueous solution, showing an oxidation wave at +1.52 V (vs NHE) which is accessible with use of excess CAN through an electron-transfer equilibrium. Kinetic analysis and isotope labeling experiments supported a water nucleophilic attack (WNA) mechanism in the water oxidation. The stability of 3 as a product of WNA allowed us to detect it in aqueous solution. The diamagnetic character of 3 enabled the detailed kinetic investigation of O2-releasing from the intermediate to determine activation parameters. Herein, a new insight was gained into the O2 release from 3 as the final step of water oxidation by the mononuclear Ru catalyst.
{"title":"Mechanistic Insight into Water Oxidation Catalysis by a Mononuclear Ruthenium Complex","authors":"Takahiko Kojima, Tomoki Takaoka, Yusuke Chiba, Hiroaki Kotani, Hiroto Fujisaki, Tomoya Ishizuka, Sachiko Yanagisawa, Minoru Kubo, Yoshihito Shiota, Kazunari Yoshizawa","doi":"10.1021/acs.inorgchem.5c00138","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00138","url":null,"abstract":"A reaction mechanism of water oxidation involving a mononuclear Ru<sup>IV</sup>-oxo complex (<b>1</b>) as an intermediate with use of (NH<sub>4</sub>)<sub>2</sub>[Ce<sup>IV</sup>(NO<sub>3</sub>)<sub>6</sub>] (CAN) as an oxidant has been scrutinized to provide a clear view of O–O bond formation and O<sub>2</sub> release. This work includes the spectroscopic and theoretical characterization of an end-on Ru<sup>III</sup>-superoxo complex (<b>3</b>), together with the crystallographic characterization of a side-on Ru<sup>IV</sup>-peroxo complex (<b>4</b>) which should be in equilibrium with <b>3</b> in an aqueous solution. The formation of the Ru<sup>V</sup>-oxo intermediate as a responsible species for the water oxidation was supported by a square wave voltammogram of <b>1</b> in an aqueous solution, showing an oxidation wave at +1.52 V (vs NHE) which is accessible with use of excess CAN through an electron-transfer equilibrium. Kinetic analysis and isotope labeling experiments supported a water nucleophilic attack (WNA) mechanism in the water oxidation. The stability of <b>3</b> as a product of WNA allowed us to detect it in aqueous solution. The diamagnetic character of <b>3</b> enabled the detailed kinetic investigation of O<sub>2</sub>-releasing from the intermediate to determine activation parameters. Herein, a new insight was gained into the O<sub>2</sub> release from <b>3</b> as the final step of water oxidation by the mononuclear Ru catalyst.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"11 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143849909","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}
Pub Date : 2025-04-18DOI: 10.1021/acs.inorgchem.5c00388
Jun Luo, Shuai Liu, Yanhu Chen, Pengfei Yang, Jing Chen, Mingjun Rao, Guanghui Li, Tao Jiang
The emerging new energy industry has significantly increased the demand for iron phosphate and nickel–cobalt precursors in lithium-ion batteries. Using crude ferronickel derived from the smelting of laterite ores to produce these precursors enables the efficient valorization of Fe, Ni, and Co. However, the limited leaching efficiency of ferronickel necessitates strategies to enhance its acid leaching properties. This study proposes a synergistic approach using a roasting atmosphere and temperature to activate water-quenched ferronickel. With increasing roasting temperature, the face-centered cubic (FCC) Ni–Fe phase transformed into the body-centered cubic (BCC) phase. When the temperature exceeded 800 °C, however, the newly formed BCC phase reverted to the FCC phase in a N2 atmosphere. Carbon in ferronickel could be removed by roasting in a CO2 atmosphere, thereby preventing phase reversion. After roasting at 800 °C for 1 h under a N2 atmosphere, the leaching efficiencies of Ni, Co, and Fe were 92.88, 91.88, and 89.20%, respectively, with the unleached portion consisting of cementite and an unconverted FCC phase. Following roasting at 1000 °C for 1 h in a CO2 atmosphere, the corresponding leaching efficiencies increased to 99.65, 99.37, and 96.75%, respectively, achieving near-complete leaching due to phase elimination.
{"title":"Atmosphere-Temperature Dual-Driven Activation of Ferronickel Enables Metal Extraction via Sulfuric Acid Leaching","authors":"Jun Luo, Shuai Liu, Yanhu Chen, Pengfei Yang, Jing Chen, Mingjun Rao, Guanghui Li, Tao Jiang","doi":"10.1021/acs.inorgchem.5c00388","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00388","url":null,"abstract":"The emerging new energy industry has significantly increased the demand for iron phosphate and nickel–cobalt precursors in lithium-ion batteries. Using crude ferronickel derived from the smelting of laterite ores to produce these precursors enables the efficient valorization of Fe, Ni, and Co. However, the limited leaching efficiency of ferronickel necessitates strategies to enhance its acid leaching properties. This study proposes a synergistic approach using a roasting atmosphere and temperature to activate water-quenched ferronickel. With increasing roasting temperature, the face-centered cubic (FCC) Ni–Fe phase transformed into the body-centered cubic (BCC) phase. When the temperature exceeded 800 °C, however, the newly formed BCC phase reverted to the FCC phase in a N<sub>2</sub> atmosphere. Carbon in ferronickel could be removed by roasting in a CO<sub>2</sub> atmosphere, thereby preventing phase reversion. After roasting at 800 °C for 1 h under a N<sub>2</sub> atmosphere, the leaching efficiencies of Ni, Co, and Fe were 92.88, 91.88, and 89.20%, respectively, with the unleached portion consisting of cementite and an unconverted FCC phase. Following roasting at 1000 °C for 1 h in a CO<sub>2</sub> atmosphere, the corresponding leaching efficiencies increased to 99.65, 99.37, and 96.75%, respectively, achieving near-complete leaching due to phase elimination.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"37 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143849910","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}
Nonlinear optical (NLO) materials that can achieve frequency conversion and coherent light emission have garnered significant interest owing to their promising applications in laser technology and advanced photonic systems. In this study, the first-principles high-throughput screening pipeline (FHSP) was employed to systematically explore nonlinear optical materials within vanadate-based systems. A total of 204 vanadates were calculated in the Inorganic Crystal Structure Database (ICSD). Eventually, BiCa2VO6 was screened out and synthesized by a traditional high-temperature solid-state method. BiCa2VO6 exhibits an outstanding second harmonic generation (SHG) response (11.2 × KDP@1064 nm and 1.67 × AGS@2.09 μm), a wide band gap (3.25 eV), and a suitable birefringence (0.123@1064 nm). The work provides a complete perspective for vanadate as a nonlinear optical material and serves as a valuable reference for future research.
{"title":"First-Principles High-Throughput Screening Combined with Experimental Synthesis to Find Vanadate Nonlinear Optical Material BiCa2VO6","authors":"Xiaomin Zhang, Lingying Duan, Dongxue Sun, Xuefan Wang, Ruqing Wei, Daqing Yang, Ying Wang, Bingbing Zhang","doi":"10.1021/acs.inorgchem.5c01314","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c01314","url":null,"abstract":"Nonlinear optical (NLO) materials that can achieve frequency conversion and coherent light emission have garnered significant interest owing to their promising applications in laser technology and advanced photonic systems. In this study, the first-principles high-throughput screening pipeline (FHSP) was employed to systematically explore nonlinear optical materials within vanadate-based systems. A total of 204 vanadates were calculated in the Inorganic Crystal Structure Database (ICSD). Eventually, BiCa<sub>2</sub>VO<sub>6</sub> was screened out and synthesized by a traditional high-temperature solid-state method. BiCa<sub>2</sub>VO<sub>6</sub> exhibits an outstanding second harmonic generation (SHG) response (11.2 × KDP@1064 nm and 1.67 × AGS@2.09 μm), a wide band gap (3.25 eV), and a suitable birefringence (0.123@1064 nm). The work provides a complete perspective for vanadate as a nonlinear optical material and serves as a valuable reference for future research.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"23 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846461","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}
Pub Date : 2025-04-18DOI: 10.1021/acs.inorgchem.5c00496
David Unnervik, Takuya Harada
The crystalline structure of Li3NaB4O8, a reaction product resulting from CO2 absorption by lithium–sodium orthoborate ((Li0.5Na0.5)3BO3), a recently developed sorbent for high-temperature carbon capture, is herein elucidated. The compound crystallizes to form a peculiar isolate borate fundamental building block consisting of six 3-membered borate rings interlinked through mutual tetrahedral borates to form a nonplanar 6-membered borate ring of chemical formula B12O24. The identification of this structure allows closing of the loop regarding the reaction mechanism characterizing CO2 capture by lithium–sodium orthoborate, sheds light on previously made observations regarding the evolution of the physicochemical properties of the melt during carbon capture, and provides valuable information for future studies and process simulations involving this promising new material for carbon capture.
{"title":"CO2-Promoted Assembly of Nonplanar B12O24-Ring as a Fundamental Building Block in Lithium–Sodium Alkali Borates during Carbon Capture","authors":"David Unnervik, Takuya Harada","doi":"10.1021/acs.inorgchem.5c00496","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00496","url":null,"abstract":"The crystalline structure of Li<sub>3</sub>NaB<sub>4</sub>O<sub>8</sub>, a reaction product resulting from CO<sub>2</sub> absorption by lithium–sodium orthoborate ((Li<sub>0.5</sub>Na<sub>0.5</sub>)<sub>3</sub>BO<sub>3</sub>), a recently developed sorbent for high-temperature carbon capture, is herein elucidated. The compound crystallizes to form a peculiar isolate borate fundamental building block consisting of six 3-membered borate rings interlinked through mutual tetrahedral borates to form a nonplanar 6-membered borate ring of chemical formula B<sub>12</sub>O<sub>24</sub>. The identification of this structure allows closing of the loop regarding the reaction mechanism characterizing CO<sub>2</sub> capture by lithium–sodium orthoborate, sheds light on previously made observations regarding the evolution of the physicochemical properties of the melt during carbon capture, and provides valuable information for future studies and process simulations involving this promising new material for carbon capture.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"8 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846462","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}
Pub Date : 2025-04-18DOI: 10.1021/acs.inorgchem.4c05159
Jingwen Guan, Xiaomei Wang, Yemeng Chen, Hailong Zhang, Zongyi Li, Ao Li, Fuwan Zhai, Lanhua Chen, Lei Chen, Ximeng Li, Bin Chen, Yigong Xu, Xiao Dong, Wei Liu, Xing Dai, Shuao Wang, Juan Diwu
The internal contamination of uranium poses severe health risks to both professionals and the public in case of nuclear accidents due to its chemo- and radiotoxicity. Although chelation therapy has been considered the only practical treatment in emergencies, current clinical chelators show only limited efficacy for uranium. Herein, a recently designed lacunary selenotungstate polyoxometalate (Se6W45) was demonstrated as an effective therapeutic agent. In this construct, the open site in Se6W45 provides a suitable uranium binding environment, resulting in the selective removal of uranium from kidneys (85.87%) and femurs (39.81%) with an extremely low ligand/metal ratio of only 4:1. The redox active sites in Se6W45, primarily the incorporated selenium, were able to reduce the intracellular reactive oxygen species (ROS) to normal levels in NRK-52E cells exposed to uranium. This approach overcomes the disadvantages of the excessive use of current chelating ligands in the range from 100- to 1000-folds, avoiding the consequential depletion of heterogeneous cations, dysfunction of proteins, and/or acid–base imbalance. More importantly, it provides a synergistic antidotal therapy for uranium in reducing radiation damage and chemical toxicity.
{"title":"Lacunary Selenotungstate Serves as a Therapeutic Agent for Uranium Intake","authors":"Jingwen Guan, Xiaomei Wang, Yemeng Chen, Hailong Zhang, Zongyi Li, Ao Li, Fuwan Zhai, Lanhua Chen, Lei Chen, Ximeng Li, Bin Chen, Yigong Xu, Xiao Dong, Wei Liu, Xing Dai, Shuao Wang, Juan Diwu","doi":"10.1021/acs.inorgchem.4c05159","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05159","url":null,"abstract":"The internal contamination of uranium poses severe health risks to both professionals and the public in case of nuclear accidents due to its chemo- and radiotoxicity. Although chelation therapy has been considered the only practical treatment in emergencies, current clinical chelators show only limited efficacy for uranium. Herein, a recently designed lacunary selenotungstate polyoxometalate (Se<sub>6</sub>W<sub>45</sub>) was demonstrated as an effective therapeutic agent. In this construct, the open site in Se<sub>6</sub>W<sub>45</sub> provides a suitable uranium binding environment, resulting in the selective removal of uranium from kidneys (85.87%) and femurs (39.81%) with an extremely low ligand/metal ratio of only 4:1. The redox active sites in Se<sub>6</sub>W<sub>45</sub>, primarily the incorporated selenium, were able to reduce the intracellular reactive oxygen species (ROS) to normal levels in NRK-52E cells exposed to uranium. This approach overcomes the disadvantages of the excessive use of current chelating ligands in the range from 100- to 1000-folds, avoiding the consequential depletion of heterogeneous cations, dysfunction of proteins, and/or acid–base imbalance. More importantly, it provides a synergistic antidotal therapy for uranium in reducing radiation damage and chemical toxicity.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"61 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143849907","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}
Pub Date : 2025-04-18DOI: 10.1021/acs.inorgchem.4c05563
Yu-Lei Gao, Li-Xing Zhao, Qing-Yu Du, Lei-Lei Guo, Han-Xue Sun, Si-Zhe Li, Hao-Wen Cui, Xue-Yun Geng, Xiao-Yu Li, Guo-Ming Wang
In this paper, a polynuclear heterometallic compound (H3O)[Al3Ni4(OH)6(MBA-NO2)6(H2O)6] (Al3Ni4, H2MBA-NO2 = 2-hydroxy-3-methoxy-5-nitrobenzoic acid) with a seven-star disk metal core has been synthesized by the solvothermal method. Al3Ni4 has good stability in water and several organic solvents, and its solid powder shows a good photothermal effect under 980 nm laser irradiation, and the temperature can reach 138.8 °C within 100 s under 1.0 W cm–2 power irradiation. Considering its good photothermal effect, water evaporation of Al3Ni4 was measured. It can be further used as a photothermal material in seawater evaporation.
{"title":"Water-Stable Al3Ni4 Polynuclear Heterometallic Compound for Near-Infrared Photothermal Conversion","authors":"Yu-Lei Gao, Li-Xing Zhao, Qing-Yu Du, Lei-Lei Guo, Han-Xue Sun, Si-Zhe Li, Hao-Wen Cui, Xue-Yun Geng, Xiao-Yu Li, Guo-Ming Wang","doi":"10.1021/acs.inorgchem.4c05563","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05563","url":null,"abstract":"In this paper, a polynuclear heterometallic compound (H<sub>3</sub>O)[Al<sub>3</sub>Ni<sub>4</sub>(OH)<sub>6</sub>(MBA-NO<sub>2</sub>)<sub>6</sub>(H<sub>2</sub>O)<sub>6</sub>] (Al<sub>3</sub>Ni<sub>4</sub>, H<sub>2</sub>MBA-NO<sub>2</sub> = 2-hydroxy-3-methoxy-5-nitrobenzoic acid) with a seven-star disk metal core has been synthesized by the solvothermal method. Al<sub>3</sub>Ni<sub>4</sub> has good stability in water and several organic solvents, and its solid powder shows a good photothermal effect under 980 nm laser irradiation, and the temperature can reach 138.8 °C within 100 s under 1.0 W cm<sup>–2</sup> power irradiation. Considering its good photothermal effect, water evaporation of Al<sub>3</sub>Ni<sub>4</sub> was measured. It can be further used as a photothermal material in seawater evaporation.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"7 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846758","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}
CO2 hydrogenation is one of the key technologies for carbon recycling and greenhouse effect mitigation. Cu-based catalysts have been widely used in the hydrogenation of CO2 to methanol. However, the low catalytic efficiency and instability of Cu-based catalysts limit their industrial application. Herein, a Zr-based metal−organic framework was used to synthesize a Cu NWs@ZrO2 catalyst with a Cu-ZrO2 interface. The Cu NWs@ZrO2 catalyst shows high activity with promising selectivity and excellent stability for the synthesis of methanol from CO2 hydrogenation. Density functional theory calculations and in situ diffuse reflectance Fourier transform infrared spectroscopy confirmed that the CO2 hydrogenation on Cu NWs@ZrO2 followed the HCOO* pathway, and the Cu-ZrO2 interface made a significant contribution to the key intermediate step of CO2 to HCOO* and accelerated the CO2 hydrogenation.
{"title":"Metal−Organic Framework-Derived Cu NWs@ZrO2 as a Highly Selective Catalyst for Methanol Synthesis from CO2 Hydrogenation","authors":"Jiahe Li, Xing-Yue He, Xiaowen Wang, Yiwei Lv, Jian-Gong Ma, Bo Li, Peng Cheng","doi":"10.1021/acs.inorgchem.5c01181","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c01181","url":null,"abstract":"CO<sub>2</sub> hydrogenation is one of the key technologies for carbon recycling and greenhouse effect mitigation. Cu-based catalysts have been widely used in the hydrogenation of CO<sub>2</sub> to methanol. However, the low catalytic efficiency and instability of Cu-based catalysts limit their industrial application. Herein, a Zr-based metal−organic framework was used to synthesize a Cu NWs@ZrO<sub>2</sub> catalyst with a Cu-ZrO<sub>2</sub> interface. The Cu NWs@ZrO<sub>2</sub> catalyst shows high activity with promising selectivity and excellent stability for the synthesis of methanol from CO<sub>2</sub> hydrogenation. Density functional theory calculations and <i>in situ</i> diffuse reflectance Fourier transform infrared spectroscopy confirmed that the CO<sub>2</sub> hydrogenation on Cu NWs@ZrO<sub>2</sub> followed the HCOO* pathway, and the Cu-ZrO<sub>2</sub> interface made a significant contribution to the key intermediate step of CO<sub>2</sub> to HCOO* and accelerated the CO<sub>2</sub> hydrogenation.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"30 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846460","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}
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