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Changing nano-scape in Asia: the future is here 改变亚洲的纳米景观:未来就在这里
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr90137a
Thalappil Pradeep,Kaoru Tamada,Haiwon Lee,Dong-Hwan Kim
{"title":"Changing nano-scape in Asia: the future is here","authors":"Thalappil Pradeep,Kaoru Tamada,Haiwon Lee,Dong-Hwan Kim","doi":"10.1039/d6nr90137a","DOIUrl":"https://doi.org/10.1039/d6nr90137a","url":null,"abstract":"Thalappil Pradeep, Kaoru Tamada, Haiwon Lee and Dong-Hwan Kim introduce the Nanoscale themed collection on the changing canvas of nano.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"13 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated experimental, first-principles study, and machine learning investigation of thermally optimized CoMoO for supercapacitors 超级电容器热优化CoMoO的综合实验、第一性原理研究和机器学习研究
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr02218a
Nagendra Babu A. P.,Rajesh B. M.,Shwetha Kollur Prabhakar Rao,C. G. Renuka
{"title":"Integrated experimental, first-principles study, and machine learning investigation of thermally optimized CoMoO for supercapacitors","authors":"Nagendra Babu A. P.,Rajesh B. M.,Shwetha Kollur Prabhakar Rao,C. G. Renuka","doi":"10.1039/d6nr02218a","DOIUrl":"https://doi.org/10.1039/d6nr02218a","url":null,"abstract":"The precise control of crystallinity and electronic structure in transition-metal molybdates is still a fundamental challenge in the development of high-performance supercapacitor electrodes. We herein report a dwell-time modulated thermal decomposition strategy to achieve phase-pure CoMoO4 with tuneable crystallinity-electronic structure coupling for advanced energy storage applications. Among the synthesised samples, CM3 showed an optimised monoclinic phase with reduced microstrain and a vertically oriented nanosheet morphology, allowing rapid ion diffusion and better electrochemical accessibility. Density functional theory calculations revealed vacancy-induced Co 3d–Mo 4d–O 2p orbital hybridisation, which promoted charge delocalisation near the Fermi level and accelerated charge-transfer kinetics. Benefiting from these synergistic structural and electronic features, the CM3 electrode delivered a high specific capacitance of 545.94 F g−1 at 1 A g−1 with 93.28% capacitance retention after 10 000 cycles. Furthermore, the assembled asymmetric CoMoO4//AC supercapacitor achieved a wide operating voltage window of 1.8 V and a high energy density of 64.74 Wh kg−1 with excellent cycling stability. The device also demonstrated practical feasibility by powering a real-time RGB sensing platform. In addition, a physics-informed Random Forest model exhibited strong predictive accuracy across electrochemical datasets, highlighting the potential of integrating data-driven modelling with experimental materials design.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"62 4 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A monolayer SnS2 Dirac source field-effect transistor: a promising low-power device superior to its MOSFET counterpart. 单层SnS2狄拉克源场效应晶体管:一种有前途的低功耗器件,优于其MOSFET对应器件。
IF 5.2 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr02642g
Hong Li, Tianshuo Duan, Xiaozhe Zhang, Fengbin Liu, Jing Lu
{"title":"A monolayer SnS<sub>2</sub> Dirac source field-effect transistor: a promising low-power device superior to its MOSFET counterpart.","authors":"Hong Li, Tianshuo Duan, Xiaozhe Zhang, Fengbin Liu, Jing Lu","doi":"10.1039/d6nr02642g","DOIUrl":"10.1039/d6nr02642g","url":null,"abstract":"<p><p>The Dirac source field-effect transistor (DSFET) is a steep-slope device designed to reduce power consumption in modern electronics. We simulate an n-type monolayer SnS<sub>2</sub> DSFET with a graphene source using <i>ab initio</i> quantum transport simulation. The graphene/SnS<sub>2</sub> heterojunction forms a stable n-type ohmic contact with 2.80% tunneling probability and a low tunneling-specific resistivity of 2.08 × 10<sup>-9</sup> Ω cm<sup>2</sup>, enabling efficient electron injection. Meanwhile, the p-type-doped Dirac cone in the graphene source causes superexponential decay of electron density, strongly suppressing the thermal tail. Consequently, the 5 nm-gate DSFET outperforms its MOSFET counterpart in low-power (LP) applications: its on-current (461 μA μm<sup>-1</sup>) is more than twice that of the MOSFET (207 μA μm<sup>-1</sup>), reaching 64% of the IRDS 10 nm LP target, and its delay and power dissipation beat IRDS benchmarks. These results highlight the critical role of the cold-source/channel contact and confirm that the ML SnS<sub>2</sub> DSFET is a viable beyond-MOSFET solution for LP electronics.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":"21568-21575"},"PeriodicalIF":5.2,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149023362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modulation of Monomers to Obtain Higher-Order Architectures of Supramolecular Assemblies of Chiral π-Systems 通过单体调制获得手性π-体系的高阶结构
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr02949c
Srinu Kotha,Sai Rachana Pramatha,Palash Jyoti Boruah,Arunima Ghosh,Sandeep Reddy,Venkata Rao Kotagiri
{"title":"Modulation of Monomers to Obtain Higher-Order Architectures of Supramolecular Assemblies of Chiral π-Systems","authors":"Srinu Kotha,Sai Rachana Pramatha,Palash Jyoti Boruah,Arunima Ghosh,Sandeep Reddy,Venkata Rao Kotagiri","doi":"10.1039/d6nr02949c","DOIUrl":"https://doi.org/10.1039/d6nr02949c","url":null,"abstract":"Secondary nucleation is a promising approach for synthesizing higher order supramolecular assemblies beyond traditional one-dimensional (1D) and 2D structures. Typically, during the cooperative self-assembly process, a small seed is formed by primary nucleation of the monomers, followed by elongation or it can also trigger secondary nucleation-elongation process. Hence, it is important to understand how to control the primary nucleation-elongation and secondary nucleation-elongation events to yield desired supramolecular structures with controlled topologies. Using chiral cyclic ether functionalized PDI derivatives (THF-PDI-R and THF-PDI-S), here we show that by modifying the state of monomers in self-assembly, it is possible to control primary and secondary nucleation events. When a 30 vol% water is added to PDI monomers in dioxane (thermodynamically formed), the self-assembly process is governed by both primary and secondary nucleation events, yielding 1D fibres and branched structures. Interestingly, these PDIs also form kinetically trapped monomers via rapid cooling. Allowing dormant monomers (kinetically trapped) to self-assemble results in the formation of bow-tie-like spherulites. By homo-seeding of dormant monomers, 1D fibres are formed because the self-assembly is governed by primary nucleation-elongation. Thus, our results indicate that controlling the monomer state required for self-assembly enables control over nucleation events and the architectures of supramolecular assemblies.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"24 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intensity Enhancement of Circularly Polarized Luminescence in TbPO 4 •0.64H 2 O Nanocrystals Induced by the Antenna Effect 天线效应对tbpo4•0.64 h2o纳米晶体圆极化发光强度的增强
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr03040h
Leonardo Ceccon,Silvia Ruggieri,Emanuele De Rienzo,Marco Bettinelli,Claudio Zaccone,Lorenzo Arrico,Francesco Zinna,Lorenzo Di Bari,Daniele Cortecchia,Giulia Martelli,Barbara Cisterna,Fabio Piccinelli
{"title":"Intensity Enhancement of Circularly Polarized Luminescence in TbPO 4 •0.64H 2 O Nanocrystals Induced by the Antenna Effect","authors":"Leonardo Ceccon,Silvia Ruggieri,Emanuele De Rienzo,Marco Bettinelli,Claudio Zaccone,Lorenzo Arrico,Francesco Zinna,Lorenzo Di Bari,Daniele Cortecchia,Giulia Martelli,Barbara Cisterna,Fabio Piccinelli","doi":"10.1039/d6nr03040h","DOIUrl":"https://doi.org/10.1039/d6nr03040h","url":null,"abstract":"We report the synthesis and the structural, morphological, and spectroscopic characterization of hydrated enantiomorphic trigonal Tb 3+ orthophosphate nanocrystals (TbPO 4 •0.64H 2 O, 45 nm in size) functionalized in aqueous environment with chromophoric organic antenna ligands, namely dipicolinate (DPA) and phthalate (PHTA). During the functionalization protocol, a partial dissolution of the orthophosphate and a digestive ripening process were observed. Remarkably, these inorganicorganic hybrid materials retain Circularly Polarized Luminescence (CPL) activity. Although the CPL intensity of the functionalized samples shows a slight deterioration compared to the unfunctionalized orthophosphate, the ligand molecules, present only in very small amounts (2-3 wt%, as determined by thermal analysis), are sufficient to significantly enhance the Tb 3+ emission in the green region around 542 nm, reaching nearly a 40-fold increase under ligand-mediated excitation in the case of 2 DPA functionalization. Among the investigated orthophosphates, the best-performing green chiroptical phosphor is the DPA-functionalized sample prepared using a nominal Tb/ligand molar ratio of 2. The reasons underlying the more efficient Tb 3+ luminescence sensitization by DPA are discussed, together with the deterioration of this sensitization observed for larger nanocrystals.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"97 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Co-doped CeO2 catalyzes bidirectional sulfur redox reactions for high-performance lithium-sulfur batteries. 共掺杂CeO2催化高性能锂硫电池的双向硫氧化还原反应。
IF 5.2 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr02260j
Keyu Chen, Chuanhuang Wu, Boxun Yang, Weihua Zhang, Hanyu Jin, Xinyu Zhao, Daying Guo, Xi'an Chen, Shun Wang
{"title":"Co-doped CeO<sub>2</sub> catalyzes bidirectional sulfur redox reactions for high-performance lithium-sulfur batteries.","authors":"Keyu Chen, Chuanhuang Wu, Boxun Yang, Weihua Zhang, Hanyu Jin, Xinyu Zhao, Daying Guo, Xi'an Chen, Shun Wang","doi":"10.1039/d6nr02260j","DOIUrl":"10.1039/d6nr02260j","url":null,"abstract":"<p><p>To address the issue of slow kinetics in the sulfur reduction reaction/sulfur oxidation reaction in lithium-sulfur batteries (LSBs), in this work, cobalt was doped into CeO<sub>2</sub> composite carbon nanotubes by ion exchange as functional intercalation of LSBs. Cobalt doping enhances polysulfide trapping and ion/electron transport while activating adjacent Ce sites, thus improving the catalytic activity of the bifunctional catalytic process of polysulfides. The experimental results show that the incorporation of Co into CeO<sub>2</sub> induces the formation of oxygen vacancies, significantly reducing the lattice oxygen content and enhancing the catalytic performance. The material delivers an initial discharge capacity of 1285.6 mAh g<sup>-1</sup> at 0.2C and maintains a high specific capacity of 786.6 mAh g<sup>-1</sup> at 5C. The capacity decay rate is as low as 0.048% per cycle over 500 cycles at 3C. It is worth noting that under a high sulfur areal loading of 4.2 mg cm<sup>-2</sup>, the capacity remained at 3.1 mAh cm<sup>-2</sup> after 100 cycles at 0.1C.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":"21584-21591"},"PeriodicalIF":5.2,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149035577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Promoting siRNA delivery via enhanced cellular uptake using an arginine-decorated amphiphilic dendrimer. 更正:通过使用精氨酸修饰的两亲性树状大分子增强细胞摄取来促进siRNA的传递。
IF 5.2 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr90172g
Xiaoxuan Liu, Cheng Liu, Jiehua Zhou, Chao Chen, Fanqi Qu, John J Rossi, Palma Rocchi, Ling Peng
{"title":"Correction: Promoting siRNA delivery <i>via</i> enhanced cellular uptake using an arginine-decorated amphiphilic dendrimer.","authors":"Xiaoxuan Liu, Cheng Liu, Jiehua Zhou, Chao Chen, Fanqi Qu, John J Rossi, Palma Rocchi, Ling Peng","doi":"10.1039/d6nr90172g","DOIUrl":"10.1039/d6nr90172g","url":null,"abstract":"<p><p>Correction for 'Promoting siRNA delivery <i>via</i> enhanced cellular uptake using an arginine-decorated amphiphilic dendrimer' by Xiaoxuan Liu <i>et al.</i>, <i>Nanoscale</i>, 2015, <b>7</b>, 3867-3875, https://doi.org/10.1039/c4nr04759a.</p>","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":" ","pages":"21593-21594"},"PeriodicalIF":5.2,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149101129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Curcumin-Gold Nanocomposites for Enhanced Cationic Anticancer Drug Delivery: Molecular Mechanisms of Loading and Membrane Interactions 姜黄素-金纳米复合材料增强阳离子抗癌药物递送:负载和膜相互作用的分子机制
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr01638c
Anuj Garg,Sri Subodh Barik,Harikrishna Nair,Sreedev G Nair,J K Kiran Kumar,Subbarao Kanchi
{"title":"Curcumin-Gold Nanocomposites for Enhanced Cationic Anticancer Drug Delivery: Molecular Mechanisms of Loading and Membrane Interactions","authors":"Anuj Garg,Sri Subodh Barik,Harikrishna Nair,Sreedev G Nair,J K Kiran Kumar,Subbarao Kanchi","doi":"10.1039/d6nr01638c","DOIUrl":"https://doi.org/10.1039/d6nr01638c","url":null,"abstract":"Curcumin-functionalized gold nanoclusters are promising platforms for catalysis and drug delivery, however, the molecular determinants governing their stability, morphology, and solvent response remain poorly understood. Here, microsecond all-atom molecular dynamics simulations were employed to investigate a 2 nm gold nanoparticle noncovalently coated with different curcumin forms, including the neutral enol and trans-keto tautomers, the deprotonated enolate, and their mixtures in water-ethanol and water-methanol solvents. Region-resolved analyses of the radius of gyration, density profiles, and surface coverage reveal that neutral enol and trans forms generate compact assemblies with near-complete surface coverage, whereas enolate-rich systems adopt more expanded conformations with greater solvent exposure. Mixed systems preserve these intrinsic packing characteristics while improving overall surface coverage. Solvent substitution from ethanol to methanol reduces π-π stacking, strengthens Au-curcumin interactions, and increases surface coverage, yielding more compact nanostructures. Free energy and potential of mean force calculations further indicate that deprotonated curcumin most effectively screens Au-Au interactions and promotes nanoparticle dispersion, whereas the neutral tautomers provide moderate stabilization. Curcumin functionalization also enhances the loading of the anticancer drugs doxorubicin (DOX) and niraparib (NIR) onto Au nanoparticles. Membrane interaction with Au-DOX/NIR-Curcumin simulations show that Enolate(An)-containing systems form more extended structures and interact more weakly with both negatively charged and neutral DMPC membranes. In contrast, neutral curcumin complexes form compact, positively charged assemblies with stronger interactions with the negatively charged model membrane. Furthermore, these interactions are predominantly driven by electrostatic attraction and are substantially weaker with the neutral DMPC membrane. Overall, these findings demonstrate how curcumin tautomeric state and solvent environment cooperatively govern interfacial organization and colloidal stability, drug-loading, and membrane interactions. This provides molecular-level design principles for curcumin-based gold nanocarriers for catalysis, sensing, and drug delivery applications.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"59 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SERS Reveals Counterion-Controlled Au(I)/Au(III) Speciation in Thiocyanate-Mediated Gold Nanowire Growth SERS揭示硫氰酸盐介导的金纳米线生长中逆离子控制的Au(I)/Au(III)形态
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr02148d
Mari N.Luumi,Adalberto Vasconcelos Sanches de Araujo,Ibrahim Abdelsalam,Pedro Camargo,Rômulo Augusto Ando
{"title":"SERS Reveals Counterion-Controlled Au(I)/Au(III) Speciation in Thiocyanate-Mediated Gold Nanowire Growth","authors":"Mari N.Luumi,Adalberto Vasconcelos Sanches de Araujo,Ibrahim Abdelsalam,Pedro Camargo,Rômulo Augusto Ando","doi":"10.1039/d6nr02148d","DOIUrl":"https://doi.org/10.1039/d6nr02148d","url":null,"abstract":"Understanding how coordination chemistry governs nanoparticle growth requires direct identification of the metal–ligand complexes that precede reduction. Here, we show that thiocyanate-mediated gold nanowire formation proceeds through distinct Au–SCN complexes whose oxidation state is determined by the counterion. Using surface-enhanced Raman scattering (SERS) calibrated by density functional theory (B3LYP/def2-TZVPP/D3(BJ)), we resolve the ν(C≡N) signatures of the active Au–SCN intermediates that persist in the as-synthesized colloids. With the imidazolium thiocyanate ionic liquid (EMISCN), the band at 2121 cm⁻¹ matches the computed signature of [Au(SCN)₂]⁻ (Au(I), 2119 cm⁻¹); under sodium-based conditions (NaSCN), the band at 2128 cm⁻¹ aligns with [Au(SCN)₄]⁻ (Au(III), 2131 cm⁻¹). Despite producing wire-like nanostructures in both cases (mean diameters 40 nm and 14 nm, respectively), these systems follow different oxidation-state pathways. Control experiments show that thiocyanate added after nanoparticle formation gives ν(C≡N) positions distinct from both synthesis-derived signatures and induces no anisotropic growth, indicating that the structure-directing species forms prior to reduction in solution. These findings establish SERS as a practical probe of reactive speciation and identify the counterion as a controlling parameter for selecting mechanistic pathways in anisotropic nanoparticle synthesis.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"32 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hierarchical NiCoP thistles: A promising electrocatalyst for alkaline oxygen evolution reaction 层次化NiCoP蓟:一种很有前途的碱析氧反应电催化剂
IF 6.7 3区 材料科学
Nanoscale Pub Date : 2026-10-15 DOI: 10.1039/d6nr02771g
Neeraj Lamba,Sumanta Kumar Meher
{"title":"Hierarchical NiCoP thistles: A promising electrocatalyst for alkaline oxygen evolution reaction","authors":"Neeraj Lamba,Sumanta Kumar Meher","doi":"10.1039/d6nr02771g","DOIUrl":"https://doi.org/10.1039/d6nr02771g","url":null,"abstract":"The rational development of efficient and durable electrocatalysts for alkaline oxygen evolution reaction (OER) is indispensable for the advancement of next-generation energy-conversion and energy-storage technologies. Herein, a slow-growth kinetics favoured synthetic strategy sequenced by solid-state phosphorization was employed to fabricate a synergistically favourable bimetallic NiCoP electrocatalyst possessing a hierarchical thistle flower-like microarchitecture. The physicochemical characteristics of resultant NiCoP exhibit significant mesoporosity, interconnected hierarchical mesopore channels, low crystallite dimensions, specific surface area of 52.9 m2 g–1, multivalent Ni/Co redox centers and catalytically active phosphide nanodomains along with amorphous phosphate layers constituting phosphide/phosphate heterointerface at the surface of NiCoP thistles. The electrochemical investigations reveal highly reversible redox characteristics, elevated electrocatalytically active sites, substantial electrochemically active surface area (357 cm2 corresponding to Cdl value of 14.3 mF or 72.9 mF cm–2), low onset potential and favourable interfacial charge-transfer kinetics toward alkaline OER. Consequently, the NiCoP electrocatalyst displays remarkable OER activity with a overpotential of 285±2.65 mV (at 10 mA cm–2), a Tafel slope of 113 mV dec–1, low charge-transfer resistance of 4.6 Ω and an apparent turnover frequency of 6.72 s–1, along with excellent operational durability over 18 h amperometric i–t and 24 h chronopotentiometric operations. The superior electrocatalytic efficacy is attributed to the electrochemical synergistics between multivalent Ni and Co species, abundant catalytically accessible low-dimensional phosphide active sites, and hierarchically interconnected mesoporous channels that collectively facilitate electrolyte-ion diffusion, rapid charge transport, enhanced OH– adsorption kinetics, and efficient release of evolved oxygen bubbles during prolonged OER operation. Furthermore, the robust mesoporous microstructural framework effectively mitigates electrochemical degradation and stablizes the partially-reconstructed catalytically active phase during anodic OER conditions. Overall, the present study establishes hierarchically architectured and synergistically favourable bimetallic phosphides as promising non-noble alternatives to conventional OER electrocatalysts for advanced alkaline oxygen electrochemistry and sustainable energy technologies.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"14 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149173201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","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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