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Iron-ruthenium nanoparticles on ordered mesoporous carbon: A bimetallic nanozyme with superior peroxidase-like activity 有序介孔碳上的铁钌纳米颗粒:一种具有优异过氧化物酶样活性的双金属纳米酶
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2026-01-03 DOI: 10.1016/j.solidstatesciences.2026.108210
Mohammad Amir Shamsizadeh , Siyavash Kazemi Movahed , Zahra Bahreini , Keun Hwa Chae , Ali Habibi Khuzani
{"title":"Iron-ruthenium nanoparticles on ordered mesoporous carbon: A bimetallic nanozyme with superior peroxidase-like activity","authors":"Mohammad Amir Shamsizadeh ,&nbsp;Siyavash Kazemi Movahed ,&nbsp;Zahra Bahreini ,&nbsp;Keun Hwa Chae ,&nbsp;Ali Habibi Khuzani","doi":"10.1016/j.solidstatesciences.2026.108210","DOIUrl":"10.1016/j.solidstatesciences.2026.108210","url":null,"abstract":"<div><div>Natural enzymes, despite their high efficiency, suffer from instability and high costs, limiting their practical use. Nanozymes which are nanomaterial-based enzyme mimics offer a robust alternative. Here, we report the design and synthesis of a bimetallic nanozyme consisting of iron and ruthenium nanoparticles that are immobilized on ordered mesoporous carbon spheres (FeRu@OMCS). This nanozyme exhibits exceptional peroxidase-like activity driven by a synergistic electronic interaction between the two metals. X-ray photoelectron spectroscopy shows charge transfer from ruthenium to iron and demonstrates this interaction. The FeRu@OMCS nanozyme has an outstandingly low Michaelis-Menten constant (K<sub>m</sub>) of 0.043 mM with the substrate tetramethylbenzidine (TMB), indicating a higher affinity for the substrate than that of its monometallic counterparts and even natural horseradish peroxidase. This work presents a rational design strategy for creating highly active, stable, and cost-effective bimetallic nanozymes for potential applications in diagnostics and catalysis.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108210"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923423","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
Investigation of Ni3S2@NF as a catalyst for the NaBH4-mediated chemical reduction of p-nitrophenol Ni3S2@NF作为nabh4介导的对硝基苯酚化学还原催化剂的研究
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2026-01-19 DOI: 10.1016/j.solidstatesciences.2026.108232
Xiujuan Cao, Tian Tian, Gang Li
{"title":"Investigation of Ni3S2@NF as a catalyst for the NaBH4-mediated chemical reduction of p-nitrophenol","authors":"Xiujuan Cao,&nbsp;Tian Tian,&nbsp;Gang Li","doi":"10.1016/j.solidstatesciences.2026.108232","DOIUrl":"10.1016/j.solidstatesciences.2026.108232","url":null,"abstract":"<div><div>The biotoxicity of p-nitrophenol (PNP) can be alleviated significantly through chemical reduction with sodium borohydride assisted by catalyst. Nevertheless, suffering from aggregation deactivation and difficulty in recovery of traditional powder catalysts, the practical application of this approach is greatly limited. Herein, we fabricated the monolithic catalyst Ni<sub>3</sub>S<sub>2</sub>@NF with enhanced active-site accessibility and convenient recyclability through hydrothermal treatment of nickel foam (NF) in sodium sulfide solution. The resultant Ni<sub>3</sub>S<sub>2</sub>@NF showed exceptional ability in catalyzing reduction of PNP with NaBH<sub>4</sub>. A reductive conversion of 93.35 % for 500 mL of PNP with an initial concentration of 15 mg L<sup>−1</sup> within 25 min was obtained under the reaction conditions: two pieces of Ni<sub>3</sub>S<sub>2</sub>@NF (2 × 3 × 3 cm<sup>2</sup>), 20 mM NaBH<sub>4</sub> and a reaction temperature of 25 °C. The corresponding reaction rate constant was 0.1089 min<sup>−1</sup>, which was 8.25 times higher than that in the system of NF/NaBH<sub>4</sub>, revealing the critical catalytic role of the Ni<sub>3</sub>S<sub>2</sub>. Kinetic studies confirmed that the reduction reaction followed the Langmuir–Hinshelwood mechanism, with a low apparent activation energy of 19.12 kJ mol<sup>−1</sup>. Additionally, the monolithic catalyst without special regeneration treatment exhibited robust reusability, retaining a PNP conversion of over 89.91 % after 15 consecutive cycles. Therefore, such Ni<sub>3</sub>S<sub>2</sub>@NF is expected to have the potenital as an efficient, stable, and easily separable non-noble metal catalyst for the remediation of nitroaromatic-contaminated wastewater.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108232"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074175","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
Magnetic field-induced modulation of metal-insulator transition in surface-doped VO2 nanowires at cryogenic temperatures 低温下表面掺杂二氧化钛纳米线金属绝缘体跃迁的磁场诱导调制
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2025-12-28 DOI: 10.1016/j.solidstatesciences.2025.108202
Seok Hwang Yun , Sun Jin Yun , Muhammad Atif Khan , Gil-Ho Kim
{"title":"Magnetic field-induced modulation of metal-insulator transition in surface-doped VO2 nanowires at cryogenic temperatures","authors":"Seok Hwang Yun ,&nbsp;Sun Jin Yun ,&nbsp;Muhammad Atif Khan ,&nbsp;Gil-Ho Kim","doi":"10.1016/j.solidstatesciences.2025.108202","DOIUrl":"10.1016/j.solidstatesciences.2025.108202","url":null,"abstract":"<div><div>The magnetic domain-induced transition in strongly correlated vanadium dioxide (VO<sub>2</sub>) is studied at cryogenic temperatures. Here, measurements are carried out at insulating, metallic, and transition regimes, where a complex dynamic between the electric and magnetic properties of the metallic and insulating domains results in an interesting observation of the metal-insulator transition induced and tuned by the applied magnetic field. The bidirectional measurements show hysteresis and peaks upon the application of positive and negative electric and magnetic fields. The appearance of higher hysteresis indicates the interplay of various magnetic domains, whereas an overall positive magnetoresistance, abrupt transitions, and a steep decline in current point towards the alignment, shrinking, and expansion of the metallic domains with increasing magnetic field strength.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108202"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883759","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
Switch on ultrasound and light: Exploring the piezo and photocatalytic properties of triazine carbon nitride towards the degradation of ciprofloxacin 开启超声和光照:探索氮化三嗪碳对环丙沙星降解的压电和光催化性能
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2026-01-08 DOI: 10.1016/j.solidstatesciences.2026.108226
Anjali Vinay , P. Haripriya , E.V. Anjana , Veera V.E. Ramesh , B.N. Reddy , R.S.S. Srikanth Vemuri , Darbha V. Ravi Kumar
{"title":"Switch on ultrasound and light: Exploring the piezo and photocatalytic properties of triazine carbon nitride towards the degradation of ciprofloxacin","authors":"Anjali Vinay ,&nbsp;P. Haripriya ,&nbsp;E.V. Anjana ,&nbsp;Veera V.E. Ramesh ,&nbsp;B.N. Reddy ,&nbsp;R.S.S. Srikanth Vemuri ,&nbsp;Darbha V. Ravi Kumar","doi":"10.1016/j.solidstatesciences.2026.108226","DOIUrl":"10.1016/j.solidstatesciences.2026.108226","url":null,"abstract":"<div><div>g-C<sub>3</sub>N<sub>4</sub> (g-CN), known to show variable photocatalytic activities depending on its modifications. Such modifications include elemental doping, crystallinity, surface area and more recently with triazine and heptazine rings. In particular, carbon nitride with triazine ring, i.e. poly(triazine imide) (PTI) evolved as new class of carbon nitride material. This work explores the photo, piezo and piezo-photocatalytic activities of PTI towards the ciprofloxacin degradation and the results are compared with unmodified g-CN. PTI has shown enhanced piezocatalytic activity than g-CN whereas the latter exhibits enhanced photocatalytic properties. Such variation can open the possibilities of homojunctions constructions with excellent catalytic efficiencies.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108226"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973852","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
Synthesis of copper-phenanthroline complexes: A solvothermal-compatible approach for the exploration of metal complexes 铜-菲罗啉配合物的合成:探索金属配合物的溶剂热相容方法
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2026-01-10 DOI: 10.1016/j.solidstatesciences.2026.108228
Yunping Zhoujin, Michael Anim Safo, Navindra Keerthisinghe, Mark D. Smith, Sophya Garashchuk, Hans-Conrad zur Loye
{"title":"Synthesis of copper-phenanthroline complexes: A solvothermal-compatible approach for the exploration of metal complexes","authors":"Yunping Zhoujin,&nbsp;Michael Anim Safo,&nbsp;Navindra Keerthisinghe,&nbsp;Mark D. Smith,&nbsp;Sophya Garashchuk,&nbsp;Hans-Conrad zur Loye","doi":"10.1016/j.solidstatesciences.2026.108228","DOIUrl":"10.1016/j.solidstatesciences.2026.108228","url":null,"abstract":"<div><div>Inorganic–organic hybrid materials have been widely investigated for their applications in catalysis, optics, magnetism, and biomedicine. Copper halide complexes are of particular interest due to their structural diversity and physicochemical properties. Conventional crystal growth approaches, such as slow evaporation and hydro(solvo)thermal synthesis, typically require extended reaction times and often favor thermodynamically stable phases. In this study, we prepared ten copper-phenanthroline halide (X = Cl, Br, and I) complexes using both traditional hydrothermal reactions and microwave-assisted hydrothermal methods and obtained [CuI(C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>)<sub>2</sub>][I<sub>3</sub>], [C<sub>12</sub>H<sub>9</sub>N<sub>2</sub>][CuI<sub>2</sub>]·(H<sub>2</sub>O)<sub>1.42</sub>, [CuI(C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>)<sub>2</sub>]<sub>2</sub>[I]<sub>3</sub>[C<sub>12</sub>H<sub>9</sub>N<sub>2</sub>]·3(H<sub>2</sub>O), [Cu<sub>2</sub>Cl<sub>4</sub>(C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>)<sub>2</sub>], [CuBr(C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>)<sub>2</sub>]<sub>4</sub>[Cu<sub>2</sub>Br<sub>4</sub>][CuBr<sub>2</sub>][Br]<sub>2</sub>[C<sub>12</sub>H<sub>9</sub>N<sub>2</sub>]·(H<sub>2</sub>O)<sub>3.44</sub>, [CuBr<sub>2</sub>(C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>)] and [Cu<sub>3</sub>Br<sub>3</sub>(C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>)<sub>2</sub>]. The comparative results show that microwave-assisted reactions shorten the reaction time and yield additional products that are not accessible through conventional hydrothermal conditions. These findings demonstrate that microwave heating provides a complementary pathway to conventional approaches, broadening the range of accessible copper halide complexes and contributing to the design and exploration of inorganic–organic hybrid systems.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108228"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023328","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
Integrating globular ZIF-67/NiAl-LDH heterostructures with carbon nanotubes to enhance the performance of asymmetric supercapacitors 将球形ZIF-67/NiAl-LDH异质结构与碳纳米管集成以提高非对称超级电容器的性能
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2026-01-02 DOI: 10.1016/j.solidstatesciences.2026.108209
Shipeng Ge , Zhe Guo , Lulu Zhang, Qiangqiang Zhang, Chang Cheng, Lili Geng, Yongming Zeng
{"title":"Integrating globular ZIF-67/NiAl-LDH heterostructures with carbon nanotubes to enhance the performance of asymmetric supercapacitors","authors":"Shipeng Ge ,&nbsp;Zhe Guo ,&nbsp;Lulu Zhang,&nbsp;Qiangqiang Zhang,&nbsp;Chang Cheng,&nbsp;Lili Geng,&nbsp;Yongming Zeng","doi":"10.1016/j.solidstatesciences.2026.108209","DOIUrl":"10.1016/j.solidstatesciences.2026.108209","url":null,"abstract":"<div><div>A high-functioning flower-like ZIF-67/NiAl-LDH-CNTs electrode was successfully synthesized in this study and used to develop an asymmetric supercapacitor (ASC). First, ZIF-67 with a dodecahedral structure was prepared. Next, NiAl-LDH was grown in situ on the ZIF-67 surface via a one-step hydrothermal method. Finally, CNTs were introduced to enhance the conductivity and stability of the electrode material. The obtained ZIF-67/NiAl-LDH-CNTs electrode material exhibited a high specific capacity of 972.1 C g<sup>−1</sup> at a current density of 1 A g<sup>−1</sup>. A specific capacity of up to 360.1 C g<sup>−1</sup> could be attained even upon increasing the current density to 15 A g<sup>−1</sup>, demonstrating excellent rate performance. The assembled ZIF-67/NiAl-LDH-CNTs//AC asymmetric supercapacitor had an acceptable energy density (25.3 Wh kg<sup>−1</sup> at a power density of 900.8 W kg<sup>−1</sup>) and high cycling stability (an 87 % capacitance retention rate at 1 A g<sup>−1</sup> after 10,000 cycles).</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108209"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923424","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
Fabrication and performance of MAPbI3 perovskite solar cells under extreme humidity conditions: A spin-coating approach 极端湿度条件下MAPbI3钙钛矿太阳能电池的制备和性能:一种自旋镀膜方法
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2026-01-08 DOI: 10.1016/j.solidstatesciences.2026.108227
Rakan Hussein Bashir , Ibrahim Inanc , Lakhdar Benahmedi , Samia Moulebhar , Mehmet Kuru , Ali Aissani
{"title":"Fabrication and performance of MAPbI3 perovskite solar cells under extreme humidity conditions: A spin-coating approach","authors":"Rakan Hussein Bashir ,&nbsp;Ibrahim Inanc ,&nbsp;Lakhdar Benahmedi ,&nbsp;Samia Moulebhar ,&nbsp;Mehmet Kuru ,&nbsp;Ali Aissani","doi":"10.1016/j.solidstatesciences.2026.108227","DOIUrl":"10.1016/j.solidstatesciences.2026.108227","url":null,"abstract":"<div><div>This study reports the fabrication and characterization of flexible methylammonium lead iodide (MAPbI<sub>3</sub>) perovskite solar cells produced under the uncontrolled high-humidity and high-temperature summer conditions of Samsun, Turkey, where relative humidity (RH) regularly exceeds 90 % and ambient temperature approaches 30 °C. A simple one-step spin-coating method was employed without the use of gloveboxes, vacuum chambers, or environmental control systems conditions that reflect realistic laboratory settings in humid, coastal environments. Structural, morphological, optical, and electrical characterizations were performed using XRD, SEM, EDS, FTIR, UV–Vis spectroscopy, and electrochemical impedance spectroscopy (EIS). XRD confirmed the formation of phase-pure, crystalline MAPbI<sub>3</sub> with dominant (110) orientation despite the adverse ambient atmosphere. SEM analysis revealed compact yet partially defective morphologies resulting from moisture-induced heterogeneous crystallization. EDS confirmed compositional integrity with minor oxygen enrichment attributed to environmental oxidation. FTIR and UV–Vis spectra verified the retention of characteristic perovskite vibrational and optical features, indicating partial chemical stability during film formation. Electrical measurements exhibited diode-like I-V behavior and moderate charge transport characteristics consistent with Jonscher's power law, confirming the semiconducting nature of the layers even under high-humidity processing. These findings demonstrate that while device efficiency is limited under such extreme conditions, perovskite film formation and photovoltaic functionality remain achievable, providing critical empirical insights for low-cost, humidity-tolerant fabrication strategies suitable for subtropical and coastal regions.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108227"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973853","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
Rb2Dy[S2][AsS4]: Synthesis and characterization of a novel lanthanoid thioarsenate(V) containing outer-sphere disulfide dumbbells Rb2Dy[S2][AsS4]:含外球二硫哑铃的新型镧系硫代砷酸盐(V)的合成与表征
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2026-01-17 DOI: 10.1016/j.solidstatesciences.2026.108231
Katja Engel, Thomas Schleid
{"title":"Rb2Dy[S2][AsS4]: Synthesis and characterization of a novel lanthanoid thioarsenate(V) containing outer-sphere disulfide dumbbells","authors":"Katja Engel,&nbsp;Thomas Schleid","doi":"10.1016/j.solidstatesciences.2026.108231","DOIUrl":"10.1016/j.solidstatesciences.2026.108231","url":null,"abstract":"<div><div>Solid-state syntheses with polysulfide fluxes in sealed silica ampoules offer common approaches for the successful preparation of lanthanoid thiophosphates and -arsenates. However, the synthesis of the new dysprosium thioarsenate(V) <figure><img></figure> from Rb<sub>2</sub>S<sub>3</sub>, As<sub>2</sub>S<sub>3</sub>, Dy and S at 823 K illustrates the effect of the ampoule orientation and the melt-surface during the synthesis. <figure><img></figure> crystallizes monoclinically in the centrosymmetric space group <span><math><mrow><mi>P</mi><msub><mrow><mn>2</mn></mrow><mrow><mn>1</mn></mrow></msub><mo>/</mo><mi>c</mi></mrow></math></span> with <span><math><mrow><mi>a</mi><mo>=</mo></mrow></math></span> 1586.12(9) pm, <span><math><mrow><mi>b</mi><mo>=</mo></mrow></math></span> 954.08(5) pm, <span><math><mrow><mi>c</mi><mo>=</mo></mrow></math></span> 784.37(4) pm and <span><math><mrow><mi>β</mi><mo>=</mo></mrow></math></span> 97.165(3)°for <span><math><mrow><mi>Z</mi><mo>=</mo></mrow></math></span> 4. Within its crystal structure, two anionic building blocks arise, namely tetrahedral <figure><img></figure> units and disulfide dumbbells <figure><img></figure> . These anions construct the eightfold sulfur coordination sphere around the unique Dy<span><math><msup><mrow></mrow><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> cations, assembling as face-connected bicapped trigonal prisms to form <span><math><mfrac><mrow><mn>1</mn></mrow><mrow><mi>∞</mi></mrow></mfrac></math></span>{ <figure><img></figure> } chains. They propagate along [001] and showcase a disulfide backside and a front of sulfur thorns. Separated by Rb<span><math><msup><mrow></mrow><mrow><mo>+</mo></mrow></msup></math></span> cations in seven- and tenfold sulfur coordination, which complete the three-dimensional network, they are leaving small empty channels in [001] direction. Single-crystal Raman spectroscopy confirmed the presence of both disulfide dumbbells <figure><img></figure> and <figure><img></figure> tetrahedra.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108231"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023336","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
CoNiAs ternary intermetallic as a precursor to highly active Co/Ni oxyhydroxide catalysts for oxygen evolution reaction conas三元金属间化合物作为高活性Co/Ni氢氧催化析氧反应的前驱体
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2026-01-06 DOI: 10.1016/j.solidstatesciences.2026.108219
Priyanka Lakharwal , Prayas Chandra Patel
{"title":"CoNiAs ternary intermetallic as a precursor to highly active Co/Ni oxyhydroxide catalysts for oxygen evolution reaction","authors":"Priyanka Lakharwal ,&nbsp;Prayas Chandra Patel","doi":"10.1016/j.solidstatesciences.2026.108219","DOIUrl":"10.1016/j.solidstatesciences.2026.108219","url":null,"abstract":"<div><div>Ternary intermetallic arsenides represent an underexplored class of materials with unique electronic structures arising from ordered multi-metallic bonding, yet their solution-based synthesis and electrocatalytic applications remain largely unexplored. Herein, we report the first experimental synthesis of a cobalt-nickel-arsenic ternary intermetallic compound (CoNiAs) via a simple and sustainable wet-chemical reduction route, followed by thermal treatment under a reductive atmosphere. The as-synthesized CoNiAs crystallizes in a hexagonal structure (space group <em>P</em>-62<em>m</em>) with nanoscale particle dimensions and high phase purity with particle size 30–180 nm. The consolidated, binder-free CoNiAs electrode exhibits excellent electrocatalytic activity toward the oxygen evolution reaction (OER), achieving an overpotential of 260 mV at a current density of 10 mA cm<sup>−2</sup> in 1 M KOH, comparable to benchmark IrO<sub>2</sub> catalysts. Moreover, the CoNiAs electrode exhibits a pinnacle current density of 1050 mA cm<sup>−2</sup> while sustaining operational stability for 60 h. Post-OER structural and surface analyses reveal that CoNiAs undergoes in situ surface reconstruction, forming catalytically active CoOOH and NiOOH species, accompanied by partial arsenic leaching. This transformation confirms the role of CoNiAs as an electro(pre)catalyst, where the ternary arsenide precursor facilitates the generation of a porous and active oxyhydroxide framework. This study establishes CoNiAs as a new ternary intermetallic platform for electrocatalysis and highlights the potential of arsenide-based precursors in designing high-performance, non-noble metal OER catalysts through controlled surface reconstruction.</div></div>","PeriodicalId":432,"journal":{"name":"Solid State Sciences","volume":"174 ","pages":"Article 108219"},"PeriodicalIF":3.3,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923426","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
Construction of Z-type heterojunctions of nanoprismatic P-CN/NCDs loaded with MnFe2O4 for photocatalytically coupled PDS-activated degradation of gatifloxacin 负载MnFe2O4的纳米柱P-CN/NCDs的z型异质结的构建用于光催化偶联pds激活降解加替沙星
IF 3.3 3区 化学
Solid State Sciences Pub Date : 2026-04-01 Epub Date: 2026-01-08 DOI: 10.1016/j.solidstatesciences.2026.108225
Xiaoling Liu, Xiaoyan Chen, Heping Li, Wanyi Liu, Haijuan Zhan
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