Journal of Solid State Chemistry最新文献_第5页

Microwave-assisted synthesis of MIL-100(Al and Fe) for fluoride remediation: A dual experimental–computational approach 微波辅助合成用于氟修复的MIL-100(Al和Fe)：一种双重实验-计算方法

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2025-12-31 DOI: 10.1016/j.jssc.2025.125804

L.D. Solis-Salazar , K. Pineda-Urbina , I.A. Aguayo-Villarreal , C.K. Rojas-Mayorga , R. Muñiz-Valencia , N.E. Davila Guzman , A. Bonilla-Petriciolet

{"title":"Microwave-assisted synthesis of MIL-100(Al and Fe) for fluoride remediation: A dual experimental–computational approach","authors":"L.D. Solis-Salazar , K. Pineda-Urbina , I.A. Aguayo-Villarreal , C.K. Rojas-Mayorga , R. Muñiz-Valencia , N.E. Davila Guzman , A. Bonilla-Petriciolet","doi":"10.1016/j.jssc.2025.125804","DOIUrl":"10.1016/j.jssc.2025.125804","url":null,"abstract":"<div><div>Fluoride contamination in drinking water is a major global health concern, particularly in developing regions where excessive exposure can lead to dental and skeletal fluorosis. Although several treatment methods exist, however, a critical need remains for efficient, low-cost, and scalable fluoride adsorbents. Metal-organic frameworks (MOFs), especially MIL-100(Fe) and MIL-100(Al), offer great potential due to their high surface area, chemical stability, and tunable porosity. In this study, MIL-100(Fe) and MIL-100(Al) were synthesized using a microwave-assisted method, providing a rapid and effective route to highly porous materials. MIL-100(Al) (81 mg/g), exhibited a fluoride adsorption capacity more than three times that of MIL-100(Fe) (22 mg/g), despite MIL-100(Fe) showing higher adsorption energy. The superior performance of MIL-100(Al) is attributed to its more accessible pore structure, as MIL-100(Fe) suffered from greater pore blockage. Both MOFs followed the Sips isotherm model, and computational analysis revealed that fluoride adsorption is governed by electrostatic interactions and heterogeneous active sites.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"356 ","pages":"Article 125804"},"PeriodicalIF":3.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940140","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}

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Experimental and machine learning-assisted prediction of nitridation of Ta2O5 to TaON Ta2O5氮化TaON的实验与机器学习辅助预测

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2026-01-01 DOI: 10.1016/j.jssc.2026.125808

Masanori Kodera, Kazuhiro Sayama

引用次数: 0

Tuning aromatic ring polarity in aminoquinoline-based HOFs for enhanced stability and proton conduction 调整氨基喹啉基HOFs的芳香环极性以增强稳定性和质子传导

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2026-01-20 DOI: 10.1016/j.jssc.2026.125839

Ke Chen, Zhongxin Wei, Yuke Lin, Jiemin Liu, Chulong Liu, Shengchang Xiang, Zhangjing Zhang

{"title":"Tuning aromatic ring polarity in aminoquinoline-based HOFs for enhanced stability and proton conduction","authors":"Ke Chen, Zhongxin Wei, Yuke Lin, Jiemin Liu, Chulong Liu, Shengchang Xiang, Zhangjing Zhang","doi":"10.1016/j.jssc.2026.125839","DOIUrl":"10.1016/j.jssc.2026.125839","url":null,"abstract":"<div><div>The development of high-performance solid-state proton conductors is crucial for advancing proton exchange membrane fuel cells (PEMFCs), a promising clean energy alternative. While hydrogen-bonded organic frameworks (HOFs) have emerged as potential candidates due to their tunable structures and environmentally friendly processing, their practical application is often limited by poor stability under operational conditions. Herein, we introduce a strategy that utilizes charge-assisted HOFs based on aminoquinoline derivatives with sulfonic acids, specifically focusing on tuning the aromatic ring polarity contrast through isomer selection to precisely control π-π stacking interactions, thereby synergistically enhancing both structural robustness and proton conductivity. Two novel HOFs, HOF-FJU-354 and HOF-FJU-355, were successfully synthesized. Structural analysis confirmed that the aminoquinoline isomer choice effectively dictates the π-π stacking motif and structural organization. This design leads to HOFs that demonstrate exceptional stability, maintaining their crystallinity even under highly corrosive pH conditions. Simultaneously, the frameworks exhibit high proton conductivities, with HOF-FJU-354 reaching a maximum 1.46 × 10−3 S cm−1 at 90 °C and 98 % RH. Activation energy analysis (> 0.4 eV) indicates a vehicle-dominated transport mechanism facilitated by extensive hydrogen-bonding networks and confined water molecules. This study successfully establishes a clear electronic structure-property relationship linking aromatic polarity modulation to performance, providing a strategic pathway for designing stable, high proton conductivity HOF materials.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"356 ","pages":"Article 125839"},"PeriodicalIF":3.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035097","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}

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Iron incorporation and sulfur modification synergistically enhance oxygen evolution in nickel–cobalt hydroxide electrocatalysts 铁掺入和硫改性协同促进氢氧化镍钴电催化剂的析氧

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2026-01-01 DOI: 10.1016/j.jssc.2026.125807

Zhanglong Tang , Xin Chen , Huadong Mei , Liang Wang , Shuang Wang , Yatian Huang , Mingjun Luo , Xingbo Ge

{"title":"Iron incorporation and sulfur modification synergistically enhance oxygen evolution in nickel–cobalt hydroxide electrocatalysts","authors":"Zhanglong Tang , Xin Chen , Huadong Mei , Liang Wang , Shuang Wang , Yatian Huang , Mingjun Luo , Xingbo Ge","doi":"10.1016/j.jssc.2026.125807","DOIUrl":"10.1016/j.jssc.2026.125807","url":null,"abstract":"<div><div>The development of efficient, stable, and low-cost non-precious metal electrocatalysts is pivotal for advancing water electrolysis for hydrogen production, where the oxygen evolution reaction (OER) remains the kinetic bottleneck. Herein, we report a self-supported S–NiCoFe(OH)x/NF electrode with Fe incorporation and S modification. The results reveal that the incorporation of Fe significantly boosts the intrinsic catalytic activity of the material, while the modification of S further enhances charge transfer efficiency and accelerates reaction kinetics. Electrochemical tests demonstrated that the S–NiCoFe(OH)x/NF electrode exhibited outstanding OER performance in 1.0 M KOH, requiring an overpotential of only 283 mV to achieve a current density of 100 mA cm−2, with a Tafel slope of 36.2 mV·dec−1. X-ray photoelectron spectroscopy (XPS) depth profiling confirms a gradient distribution of Fe and S from the surface to the bulk phase of the composite: Fe content increases from the surface to the bulk, whereas S is primarily enriched on the surface. This synergistic regulation of elemental composition and spatial distribution not only resolves the trade-off between activity and conductivity but also provides a versatile design principle for the development of high-performance hydroxide-based electrocatalysts toward practical water electrolysis.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"356 ","pages":"Article 125807"},"PeriodicalIF":3.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145876901","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}

引用次数: 0

Modeling structural, elastic and electronic properties of ternary barium-based low sensitivity energetic perovskite based on DFT 基于DFT的三元钡基低灵敏度能钙钛矿结构、弹性和电子特性建模

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2026-01-11 DOI: 10.1016/j.jssc.2026.125829

Feng Gu, Jijun Xiao

{"title":"Modeling structural, elastic and electronic properties of ternary barium-based low sensitivity energetic perovskite based on DFT","authors":"Feng Gu, Jijun Xiao","doi":"10.1016/j.jssc.2026.125829","DOIUrl":"10.1016/j.jssc.2026.125829","url":null,"abstract":"<div><div>As a new energetic material, energetic perovskite has the characteristics of high detonation performance, high thermal stability and low cost, and has a wide application potential in the field of energetic materials, so it is of great significance to study its structure and properties. Based on density functional theory (DFT), the structure, mechanical and electronic properties of a new type of insensitive barium-based energetic perovskite (Hqe)2(Ba)(ClO4)4 (QBP) are introduced in detail. The intensity of coordination bonds is discussed by the method of projected Crystal Orbital Hamilton Population (pCOHP). Furthermore, the intensity of coordination bond is explained by quantitative comparison between Bader charge and electron localization function (ELF). The results of energy band calculation show that QBP compound has indirect band gap, and the valence band is the largest at point D and the conduction band is the smallest at point Γin Brillouin zone. The research results of mechanical properties show that QBP structure is elastic, stable, anisotropic and ductile. For coordination bonds, the stronger the bonding strength, the more stable the crystal geometry and the greater the rigidity of the system. The Hirshfeld surface analysis shows that the hydrogen bonding N/C–H⋯O dominates the intermolecular interaction in QBP crystal and plays an important role in maintaining the stability of crystal structure.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"356 ","pages":"Article 125829"},"PeriodicalIF":3.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974205","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}

引用次数: 0

Optimal Co substitution enabled enhanced electrocatalytic activity for oxygen evolution reaction in KVO3 优化Co取代可以提高KVO3中析氧反应的电催化活性

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2026-01-07 DOI: 10.1016/j.jssc.2026.125818

Poonam Moar , Mange Ram , Krishna Kanta Haldar , Krishnakanta Mondal , Sourabh Barua

{"title":"Optimal Co substitution enabled enhanced electrocatalytic activity for oxygen evolution reaction in KVO3","authors":"Poonam Moar , Mange Ram , Krishna Kanta Haldar , Krishnakanta Mondal , Sourabh Barua","doi":"10.1016/j.jssc.2026.125818","DOIUrl":"10.1016/j.jssc.2026.125818","url":null,"abstract":"<div><div>Oxygen evolution reaction (OER) is a part of the process of electrochemical (EC) splitting of water, which is a promising technique for the production of renewable hydrogen (H<math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math>). Oxide perovskites have garnered significant attention as promising materials for OER due to their structural versatility and excellent stability. Doping of 3d transition metals has been an outstanding method to improve the activity of electrocatalysts for water oxidation. Here we report the synthesis of potassium metavanadate (KVO<math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math>) via a sol–gel technique and the substitution of vanadium with cobalt to different levels with the general formula KV<math><msub><mrow></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub></math>Co<math><msub><mrow></mrow><mrow><mi>x</mi></mrow></msub></math>O<math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math> (<math><mrow><mi>x</mi><mo>=</mo><mn>0</mn><mo>,</mo><mn>0</mn><mo>.</mo><mn>25</mn><mo>,</mo><mn>0</mn><mo>.</mo><mn>50</mn><mo>,</mo><mn>0</mn><mo>.</mo><mn>75</mn><mo>,</mo><mn>1</mn></mrow></math>). Diverse structural and microscopic analyses such as XRD, SEM, XPS, and TEM, confirm the inclusion of Co into the KVO<math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math> structure. We find that an optimal cobalt (Co) content in KVO<math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math> serves to increase the electrocatalytic activity for OER, a conclusion supported experimentally and theoretically. Density Functional Theory (DFT) calculations show that the substitution of Co in the pristine structure of KVO<math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math> leads to a decrease in the band gap, with more Co and oxygen O states approaching the Fermi level.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"356 ","pages":"Article 125818"},"PeriodicalIF":3.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940135","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}

引用次数: 0

A new non-stoichiometric orthopyrophosphate Na2.48Cd4.15(P2O7)2(PO4): Crystal structure, defect chemistry and Eu3+-activated luminescence 一种新的非化学计量正磷酸盐Na2.48Cd4.15(P2O7)2(PO4)：晶体结构、缺陷化学和Eu3+活化发光

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2025-12-23 DOI: 10.1016/j.jssc.2025.125792

Aïcha Mbarek

{"title":"A new non-stoichiometric orthopyrophosphate Na2.48Cd4.15(P2O7)2(PO4): Crystal structure, defect chemistry and Eu3+-activated luminescence","authors":"Aïcha Mbarek","doi":"10.1016/j.jssc.2025.125792","DOIUrl":"10.1016/j.jssc.2025.125792","url":null,"abstract":"<div><div>A new cadmium sodium ortho-pyrophosphate, Na2.48Cd4.15(P2O7)2PO4, was successfully synthesized and characterized using single-crystal X-ray diffraction, infrared (IR), Raman, and solid-state NMR spectroscopy. The compound crystallizes in the triclinic system, space group P1, with the following unit cell parameters: a = 6.7262(1) Å, b = 9.6660(2) Å, c = 11.5040(2) Å, α = 98.262(1)°, β = 92.165(1)°, γ = 90.583(1)°, and V = 739.55(2) Å3. The crystal structure consists of NaO6, NaO7, and CdO6 polyhedra connected through corners and edges with isolated PO43− tetrahedra and P2O74− pyrophosphate groups, forming a layered framework parallel to the ab plane. Partial cationic substitution between Cd2+ and Na+ was confirmed by crystallographic analysis. IR and Raman spectra exhibit characteristic vibrational modes of both PO43− and P2O74− units. Upon UV excitation, Eu3+-doped samples show intense orange-red photoluminescence, mainly arising from the 5D0 → 7F2 transition at 609 nm. The emission profile indicates that Eu3+ ions occupy a single low-symmetry site, which is corroborated by the presence of one line in the 5D0 → 7F0 transition and three lines in the 5D0 → 7F1 transition. These results show that Na2.48Cd4.15(P2O7)2PO4 is a good host for rare-earth doping, thanks to its stability, flexible structure, and strong luminescence, making it useful for phosphors, lasers, and optoelectronic devices.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"356 ","pages":"Article 125792"},"PeriodicalIF":3.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940143","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}

引用次数: 0

A robust copper(II)-based supramolecular complex with intrinsic proton conductivity: Synthesis, stability, and conducting mechanism 具有本征质子导电性的稳健铜（II）基超分子配合物：合成、稳定性和导电机理

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2026-01-12 DOI: 10.1016/j.jssc.2026.125831

Wanyao Chen , Qi Zhuang , Ping Xiong , Gang Li

{"title":"A robust copper(II)-based supramolecular complex with intrinsic proton conductivity: Synthesis, stability, and conducting mechanism","authors":"Wanyao Chen , Qi Zhuang , Ping Xiong , Gang Li","doi":"10.1016/j.jssc.2026.125831","DOIUrl":"10.1016/j.jssc.2026.125831","url":null,"abstract":"<div><div>Intrinsic proton-conductive supramolecular complexes are promising for proton exchange membrane fuel cells (PEMFCs) due to their structural regularity, tunable non-covalent interactions, and stable proton transport pathways. Herein, a copper(II)-based supramolecular complex, [CuCl(H5ebidc)]·½(bbe)·CH3OH (1), was synthesized by employing 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylic acid) (H6ebidc) and 1,2-bis(2-benzimidazolyl)ethane (bbe) as mixed ligand. Comprehensive characterization confirms the exceptional stability of 1 in boiling water (24 h), across a broad pH range (1.5–11.5), and up to 234 °C. Alternating current (AC) impedance determinations show that its proton conductivity is strongly dependent on temperature and humidity, achieving 3.31 × 10−3 S cm−1 at 100 °C and 98 % relative humidity (RH). Activation energy (Ea) analysis indicates proton transfer follows the Grotthuss mechanism at 98 % RH (Ea = 0.33 eV) and shifts to the vehicular mechanism at 68 % RH (Ea = 0.56 eV). This intrinsic proton transport is enabled by the continuous H-bonding networks formed by carboxyl groups, imidazole N atoms, and guest molecules. This work demonstrates the utility of imidazole carboxylate ligands in constructing stable, high-performance proton-conductive supramolecular complexes, offering a feasible design strategy for PEMFC-oriented materials.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"356 ","pages":"Article 125831"},"PeriodicalIF":3.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974207","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}

引用次数: 0

Physical properties of single crystal NaSmTe2 — A new alkali metal rare-earth telluride with a triangular lattice 单晶NaSmTe2 -一种新型三角形晶格碱金属稀土碲化物的物理性质

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2026-01-09 DOI: 10.1016/j.jssc.2026.125826

Jianwei Shao , Mengqing Liu , Mengqin Liu , Jianqi Liu , Xin Zhou , Sheng Li , Hanlin Wu , Wenhui Liu , Zhixiang Shi

{"title":"Physical properties of single crystal NaSmTe2 — A new alkali metal rare-earth telluride with a triangular lattice","authors":"Jianwei Shao , Mengqing Liu , Mengqin Liu , Jianqi Liu , Xin Zhou , Sheng Li , Hanlin Wu , Wenhui Liu , Zhixiang Shi","doi":"10.1016/j.jssc.2026.125826","DOIUrl":"10.1016/j.jssc.2026.125826","url":null,"abstract":"<div><div>The discovery of the triangular lattice spin liquid candidate YbMgGaO<math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math> has attracted numerous interest in quantum spin liquids (QSLs). Recently, the ARECh<math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math> (A = alkali metal, RE = rare earth elements, Ch = chalcogen elements) family of materials, featuring triangular lattice geometries and simple structure, has emerged as a new platform for investigating frustrated magnetism including the candidate of QSLs. The majority of investigations on ARECh<math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math> quantum magnets have focused on oxygen-, sulfur-, and selenium-based chalcogenides (Ch = O/S/Se), and the tellurium-containing analogues remain largely unexplored aspects. Here we successfully synthesized the triangular-lattice compound NaSmTe2. Electrical transport measurements and UV–vis diffuse reflectance spectroscopy establish the compound as a good insulator. Magnetic measurements reveal pronounced anisotropy. We demonstrate that with the field applied parallel to the <math><mrow><mi>a</mi><mi>b</mi></mrow></math>-plane, the magnetization exhibits a broad maximum around 50 K, which originates from crystal electric field (CEF) effects. Both the magnetic susceptibility and specific-heat data show no evidence of long-range magnetic order within the measured temperature range. The low-temperature specific heat data reveal a pronounced Schottky anomaly.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"356 ","pages":"Article 125826"},"PeriodicalIF":3.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940136","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}

引用次数: 0

Dual MOF-derived porous carbon composites: Preparation of efficient bifunctional catalysts by pyrolytic protection strategy 双mof衍生多孔碳复合材料：利用热解保护策略制备高效双功能催化剂

IF 3.5 3区化学

Journal of Solid State Chemistry Pub Date : 2026-04-01 Epub Date: 2026-01-08 DOI: 10.1016/j.jssc.2026.125810

Jingjing Chen , Yulu Jing , Xiaotong Song , Xiaolong Xu , Changyu Liu , Jianqiu Ruan , Jianbo Jia

{"title":"Dual MOF-derived porous carbon composites: Preparation of efficient bifunctional catalysts by pyrolytic protection strategy","authors":"Jingjing Chen , Yulu Jing , Xiaotong Song , Xiaolong Xu , Changyu Liu , Jianqiu Ruan , Jianbo Jia","doi":"10.1016/j.jssc.2026.125810","DOIUrl":"10.1016/j.jssc.2026.125810","url":null,"abstract":"<div><div>Following the \"MOF-protected pyrolysis\" strategy, a dense carbon shell derived from ZIF tightly encapsulated MIL-53(Fe) during pyrolysis. This approach effectively prevented the high-temperature collapse of MIL-53 pore walls, thereby constructing a robust \"MIL-53-carbon skeleton\" composite. Furthermore, cetyltrimethylammonium bromide (CTAB) was introduced to regulate ZIF crystal growth and tailor the microporous structure. Ultimately, this process yielded nanoscale dual-MOF hybrid materials, which thus exhibit outstanding activity for both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). In alkaline media, its ORR half-wave potential (E1/2 = 0.926 V) significantly surpasses that of commercial Pt/C (E1/2 = 0.826 V). For OER, the overpotential required to reach 10 mA cm−2 (η = 349 mV) is lower than that of RuO2 (η = 368 mV). The ORR/OER potential gap (ΔE = Ej10 - E1/2) is only 0.653 V, which is narrower than that of the Pt/C + RuO2 mixture (m:m = 1:1, ΔE = 0.772 V) under the same conditions. The optimally prepared composite also demonstrated excellent performance in assembled zinc-air batteries, offering a promising strategy for designing efficient bifunctional electrocatalysts.</div></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":"356 ","pages":"Article 125810"},"PeriodicalIF":3.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940137","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}

引用次数: 0