Electrocatalysis最新文献

{"title":"Influence of the Urine Matrix on the Electrochemical Oxidation of Urea with Nickel Catalysts for Nitrogen Removal Treatments","authors":"Raihana Benyahia,&nbsp;Lamia Rebiai,&nbsp;Kadiatou Bah,&nbsp;Encarnacion Torralba,&nbsp;Diane Muller-Bouvet,&nbsp;Sabrina Guérin-Rechdaoui,&nbsp;Vincent Rocher,&nbsp;Christine Cachet-Vivier,&nbsp;Stéphane Bastide","doi":"10.1007/s12678-026-01026-z","DOIUrl":"10.1007/s12678-026-01026-z","url":null,"abstract":"<div><p>Urea oxidation in urine is an alternative process that can couple nitrogen removal from wastewater with low-cost green hydrogen production. To date, very few studies have examined how the urine matrix affects urea electrolysis compared to urea model solutions. In this work, nickel and the allotropic forms of Ni(OH)₂/NiOOH, the α/γ and β/β catalytic pairs, obtained through electrodeposition and post-treatments, were tested for this purpose in alkalinized synthetic urine.</p><p>The alkalinization step, necessary for nickel-based electrocatalysis, leads to a precipitate of Ca₅(PO₄)₃OH and Mg(OH)₂, with 45% of phosphorus recovered. Voltammetry revealed a reduced anodic peak current compared to urea solutions, due to adsorbed organic molecules (uric acid, creatinine, citrate), which shift the potential anodically. Consequently, 2 to 5 times longer electrolyses are needed to pass the same charge. Oxidation products formed in urine are comparable to those in a urea solution: NO₂^-, N₂ and O₂, but with significantly lower faradaic efficiencies (e.g., -25% for N₂). Part of the charge (up to 42%) is involved in the oxidation of organic molecules, particularly uric acid (favored on the β/β pair). Low selectivity to N₂ and a decreasing current during electrolysis are also encountered in synthetic urine. However, electrode aging is less pronounced, possibly due to the lower current densities involved. For hydrogen production, the additional charge is an advantage since organic molecules are also oxidized at a lower potential than that of water. However, if the main purpose of urine treatment is nitrogen removal, then more energy is required.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 4","pages":"669 - 684"},"PeriodicalIF":3.2,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148342988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of the Submicron Porosity in Sm2Zr2O7 for Electrochemical Analysis of Lead","authors":"Ekaterina Bulatova,&nbsp;Elena Korina,&nbsp;Anastasia Mironova,&nbsp;Damir Galimov,&nbsp;Mikhail Kuznetsov,&nbsp;Mikhail Golovin,&nbsp;Oleg Bol’shakov","doi":"10.1007/s12678-026-01029-w","DOIUrl":"10.1007/s12678-026-01029-w","url":null,"abstract":"<div><p>Developed surfaces of double metal oxides obtained through high-temperature synthesis with sacrificial porogens are usually macroporous or submicron pore-sized, and are often omitted from consideration in favor of micro- and mesoporous materials. However, the simple value of the specific area does not qualify the properties of a porous material. In fact, it is of fundamental importance that the porosity provides access to all active sites. Thus, fine control over pore size is needed to optimize the surface-dependent material properties. Here, we search for the optimal macroporosity developed with microspherical silica in the crystalline samarium zirconate to adapt it for electrocatalytic assay of lead ions. Improved electroactivity of the porous substrate was manifested in apparent growth of the current response, despite increased impedance of the bulk zirconate phase mixed with residual silica. Found optimal average pore size range of 300–400 nm is explained with a trade-off between specific surface and ease of ion diffusion. Application of the best active Sm₂Zr₂O₇ as an electrocatalyst in SPE provided with effective means of lead assay in water with LOD 57 nM, which is among the top developed SPE-based systems for heavy metal electroanalysis.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 4","pages":"647 - 659"},"PeriodicalIF":3.2,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148342924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Surface Oxides on the Electrochemical Behaviour of Ni(111) in the Hydrogen Evolution Potential Region","authors":"Nobutoshi Kachi,&nbsp;Gaurav Verma,&nbsp;Akihiro Suzuki,&nbsp;Gregory Jerkiewicz,&nbsp;Akiyoshi Kuzume","doi":"10.1007/s12678-026-01030-3","DOIUrl":"10.1007/s12678-026-01030-3","url":null,"abstract":"<div><p>The electrochemical behaviour of nickel (Ni) surfaces in the hydrogen evolution reaction (HER) potential region is strongly influenced by the presence of surface oxides; however, controlling and quantifying such effects remain experimentally challenging. In this study, we establish an improved electrode preparation and transfer methodology that minimises unintended surface oxidation arising from short-term air exposure, enabling systematic investigation of the intrinsic electrochemical behaviour of Ni electrodes. Using monocrystalline bead-shaped Ni electrodes and well-defined Ni(111) single-crystal electrodes in alkaline electrolyte, we examine the reversible and irreversible redox processes associated with the metallic Ni, α-hydroxide, and β-hydroxide species. Cyclic voltammetry measurements reveal that trace amounts of surface oxide formed during brief air exposure can markedly enhance the apparent HER activity, whereas suppression of oxidation leads to strongly diminished HER activity. The transformation from α-hydroxide to β-hydroxide is shown to commence once about one equivalent monolayer of α-hydroxide is formed, and proceeds irreversibly with increasing anodic excursion and repetitive potential cycling. On the Ni(111) surface, an analysis of the voltammetric features suggests that this transformation occurs preferentially at step or defect sites, while terraces remain comparatively less affected. The HER activity exhibits a non-monotonic dependence on the surface oxide accumulation, indicating the existence of an optimum amount of oxide. These results highlight the critical role of trace amounts of surface oxides in governing the HER behaviour on Ni and emphasise the necessity of precise surface-state control in electrochemical studies.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>The role of trace surface oxides in the hydrogen evolution reaction on Ni was investigated using a monocrystalline bead-shaped Ni electrode and the well-defined Ni(111) surface. Controlled electrode preparation revealed that limited surface oxidation enhances HER activity, whereas excessive oxidation diminishes it, highlighting a non-monotonic structure-activity correlation governed by surface states</p></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 4","pages":"660 - 668"},"PeriodicalIF":3.2,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12678-026-01030-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148342927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"S-Doped Activated Carbon Derived From Banana Peel for Trace-Level Detection of Thymol in Spiked Water, Soil, Fruit, and Vegetable Samples","authors":"Muthu Raj Rajanna,&nbsp;Ghada A. Khouqeer,&nbsp;Madasu Sreenivasulu,&nbsp;Naglaa AbdelAll,&nbsp;Abdullah N. Alodhayb,&nbsp;Nagaraj P. Shetti","doi":"10.1007/s12678-026-01025-0","DOIUrl":"10.1007/s12678-026-01025-0","url":null,"abstract":"<div><p>Thymol (THY), a naturally occurring monoterpenoid phenol found in thyme and related plants, is commonly used in pesticides for its antibacterial and antifungal properties. Although less toxic than synthetic variants, excessive or improper use can harm human health, aquatic organisms, and the environment. In this study, we synthesized a sulfur-doped activated carbon from banana peel biowaste and employed it to develop a simple, highly sensitive, and cost-effective voltammetric sensor for determining THY in soil, water, fruit, and vegetable samples. XRD, FT-IR, EDX, SEM, CV, AFM, SWV, and EIS were used to illustrate the created material. After 20 days of packing, the S-BAC600/CPE electrode sustained 98–99% of its original response, confirmed excellent linearity, and had a small detection limit (0.68 × 10^− 8 M). The robustness and usefulness of the sensor were confirmed by real sample analysis, which fashioned retrieval values between 86.00% and 95.86% with RSDs extending from 1.29% to 2.89%.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 4","pages":"629 - 646"},"PeriodicalIF":3.2,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148342910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and Comparative Electrocatalytic Evaluation of Chromium Chalcogenides Nanoparticles for Overall Water Splitting","authors":"Muhammad Aashir Awan,&nbsp;Hoor Ul Ain,&nbsp;Azhar Mahmood,&nbsp;Manzar Sohail,&nbsp;Ansar Abbas,&nbsp;Jiaqi Wang,&nbsp;Maria Hasan","doi":"10.1007/s12678-026-01020-5","DOIUrl":"10.1007/s12678-026-01020-5","url":null,"abstract":"<div>\u0000 \u0000 <p>Electrochemical water splitting is a promising route for sustainable hydrogen generation, but its progress is constrained by sluggish kinetics and the scarcity of cost-effective bifunctional catalysts. While transition metal chalcogenides have been widely studied, chromium chalcogenides remain underexplored, particularly for water splitting. In this work, we address this gap by synthesizing chromium sulfide, selenide, and telluride nanoparticles (Cr₂S₃, Cr₂Se₃, Cr₂Te₃) through solvo- and hydrothermal methods and systematically assessing their activity for both hydrogen and oxygen evolution reactions. Structural, morphological, and surface characterizations (XRD, SEM/TEM, Raman, and XPS) confirm well crystalline nanoscale particles, while electrochemical evaluation reveals Cr₂S₃ as the most active, requiring only 228.5 mV for OER and 93 mV for HER at 10 mA cm⁻². It also exhibits the lowest charge transfer resistance and stable operation over 24 h. These findings establish chromium chalcogenides as a promising platform for advancing non-noble bifunctional catalysts in integrated water splitting technologies.</p>\u0000 </div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 4","pages":"615 - 628"},"PeriodicalIF":3.2,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12678-026-01020-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148342926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bio-Electro-Fenton Systems for Wastewater Treatment: Mechanisms, Materials, Reactor Configurations, and Scale-Up Prospects","authors":"Abdelmounaim Yamani,&nbsp;Peiguo Zhou","doi":"10.1007/s12678-026-01031-2","DOIUrl":"10.1007/s12678-026-01031-2","url":null,"abstract":"<div><p>The increasing release of complex, recalcitrant pollutants from industrial and municipal activities into global water systems necessitates advanced treatment solutions beyond conventional methods. The Bio-Electro-Fenton (BEF) process offers a sustainable alternative by integrating microbial metabolism with electrochemically driven advanced oxidation for the degradation of persistent organic contaminants. This review synthesizes fragmented, cross-disciplinary research to provide a coherent overview of BEF technology, unifying current understanding of its fundamental mechanisms and practical applications. It discusses key bio-electrochemical pathways governing hydrogen peroxide generation and hydroxyl radical formation, recent advances in electrode materials and cathode composites, and the influence of reactor configurations and operating parameters on treatment performance. Reported studies demonstrate high removal efficiencies for a wide range of recalcitrant pollutants, with reduced chemical input, limited sludge production, and the potential for low or near energy-neutral operation under optimized conditions. At the same time, challenges related to reactor scale-up, long hydraulic retention times for certain compounds, material costs, and process control remain significant barriers to large-scale implementation. By consolidating current knowledge and identifying realistic opportunities and limitations, this review provides a critical reference to support the continued development of BEF systems toward practical wastewater treatment applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 4","pages":"563 - 583"},"PeriodicalIF":3.2,"publicationDate":"2026-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148342987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Facile Wet-Chemical Synthesis of Ternary Ir-Based Alloy Electrocatalysts for OER Applications","authors":"Seong Ji Kim,&nbsp;Jin Ho Lee,&nbsp;Oi Lun Li,&nbsp;Dong-Ha Lim,&nbsp;Hee Soo Kim","doi":"10.1007/s12678-026-01012-5","DOIUrl":"10.1007/s12678-026-01012-5","url":null,"abstract":"<div><p>The development of electrocatalysts with high catalytic activity while minimizing the use of precious metals such as iridium (Ir) is essential for advancing hydrogen and oxygen evolution reactions (HER and OER) in anion-exchange membrane water electrolysis (AEMWE) systems. In this study, an Ir-based ternary alloy (Ir–Ni–Co) was synthesized via a simple wet-chemical reduction method using NaBH₄ as the reducing agent. The resulting IrNiCo alloy electrocatalyst (270 mV and 160 mA/cm² @1.8V_RHE) exhibited excellent OER performance, achieving an overpotential more than 70 mV lower than that of commercial IrO₂ (340 mV and 51 mA/cm² @1.8V_RHE) at 10 mA/cm², along with remarkable durability, showing only a 22.8 mV increase versus the reversible hydrogen electrode (RHE) after 24 h of continuous operation in 1 M KOH. This outstanding activity and stability are attributed to the synergistic alloying of Ir with 3d transition metals (Ni and Co), which modulates the adsorption energy of oxygen intermediates, a key factor in enhancing OER kinetics. Notably, the IrNiCo electrocatalyst also demonstrated stable overall water-splitting performance in a two-electrode full-cell configuration. These findings highlight that ternary Ir-based alloys synthesized through this facile wet-chemical approach hold strong promise as next-generation commercial electrocatalysts for alkaline water electrolysis.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 3","pages":"404 - 413"},"PeriodicalIF":2.8,"publicationDate":"2026-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Composites of Cobalt and Zinc Porphyrins with Titania and Graphene Quantum Dots for Photoelectrodegradation of Pentachlorophenol","authors":"Mbulelo Jokazi,&nbsp;James Oyim,&nbsp;Giday Welegergs,&nbsp;Jonathan Britton,&nbsp;Francis Chindeka,&nbsp;Philani Mashazi,&nbsp;Tebello Nyokong","doi":"10.1007/s12678-026-01027-y","DOIUrl":"10.1007/s12678-026-01027-y","url":null,"abstract":"<div>\u0000 \u0000 <p>Herein, we investigated the preparation of composites of cobalt or zinc porphyrins with titania and graphene quantum dots for photoelectrochemical degradation of pentachlorophenol (PCP). Electrochemical analysis was conducted using cyclic voltammetry and electrochemical impedance spectroscopy. The degradation of PCP was followed using UV-vis spectroscopy. The composites of metal porphyrins with titania and graphene quantum dots, exhibited excellent photoelectrochemical degradation results in that the removal efficiency and catalytic rates were enhanced compared to individual components. Among the tested systems, zinc porphyrin-TiO₂-GQDs exhibited the highest removal efficiency up to (80.5%) and catalytic rate of (1.7 × 10^− 2) in the absence of H₂O₂. When H₂O₂ was added, a significantly improved PCP degradation with up to 94.0% removal efficiency and the catalytic rate increased to 1.87 × 10^− 2. Pre-treating PCP via cyclic voltammetry further enhanced the degradation process, yielding a catalytic rate of 2.7 × 10^− 2 and 97.3% removal efficiency.</p>\u0000 </div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 3","pages":"549 - 561"},"PeriodicalIF":2.8,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12678-026-01027-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modification of Zr-based NH2-UiO-66 MOF by Incorporation of La2O3-based Nanomaterials as Efficient Photoelectrocatalysts for Oxygen Evolution Reaction (OER) and Photocatalysts for Degradation of Organic Dyes","authors":"Muhammad Kashif,&nbsp;Muhammad Fiaz,&nbsp;Fahmida Jabeen,&nbsp;Muhammad Najam-ul-Haq,&nbsp;Ammara Shabbir,&nbsp;Muhammad Asim Farid,&nbsp;Muhammad Athar","doi":"10.1007/s12678-026-01008-1","DOIUrl":"10.1007/s12678-026-01008-1","url":null,"abstract":"<div><p>Development of low overpotential OER photoelectrocatalysts has caught much attention to delivers the 10 mAcm^− 2 benchmark current density in alkaline medium. Therefore, we designed the highly efficient MOF-based OER photoelectrocatalyst by in-situ introduction of CoO/La₂O₃ nanocomposite into host NH₂-UiO-66 via facile solvothermal method. The as prepared CoO/La₂O₃@NH₂-UiO-66 displays efficient photo electrocatalytic OER-activity and required just 195 mV overpotential to deliver 10 mAcm^− 2 current density in 1.0 M KOH electrolyte with lower Tafel slope value 73 mVdec^− 1, which is higher than many of similar kind of OER catalysts. Meanwhile, it also exhibits satisfactory long-term stability. The increased photocatalytic activity of the in-situ incorporated nanomaterials into the host due to the synergistic and hetro-junction formation effect between the incorporated nanocomposite and the MOFs hosts. This designed efficient photoelectrocatalysts encourages the development of the new MOFs-based photoelectrocatalysts with low overpotential for water splitting and many other applications in future. Similarly, CoO/La₂O₃@NH₂-UiO-66 delivered maximum photocatalytic efficiency for the photodegradation of methylene blue (MB) and methyl orange (MO), up to 92% and 87% respectively.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 3","pages":"536 - 548"},"PeriodicalIF":2.8,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrocatalytic Performance of NiO/CNT/CC in Oxygen Evolution Reaction","authors":"De Yu Xu,&nbsp;Ai Xiang Wei,&nbsp;Li Rong Liang","doi":"10.1007/s12678-026-01024-1","DOIUrl":"10.1007/s12678-026-01024-1","url":null,"abstract":"<div><p>The synergy effect is effective strategy to enhance the transition-metal oxides electrocatalytic oxygen evolution reaction (OER) activities between the electrocatalyst and substrate. In this work, the precursor solutions of NiSO₄ • 6H₂O, Na₂S₂O₈, NH₄OH, and deionized water were used to directly prepare NiO nanosheets which grown on carbon nanotube (CNT)/carbon cloth (CC) substrates through a chemical bath method. Physical characterization revealed that the NiO nanosheets densely wrap around the CNTs, generating abundant the exposure of catalytically active edge sites, thereby significantly enhancing catalytic performance. The OER catalytic performance of NiO/CNT/CC and NiO/CC catalysts were studied and compared. The NiO/CNT/CC catalysts exhibits better OER catalytic performance with an overpotential of 418 mV at 100 mA cm^− 2, a Tafel slope of 92.3 mV dec^− 1, an electrochemical surface area of 1035.0 cm² and charge transfer resistance of 0.21 Ω and great durability in alkaline solution. However, they are 518 mV, 166.7 mV dec^− 1, 202.5 cm² and 0.27 Ω for NiO/CC catalysts, respectively. Compared with NiO/CC catalysts, the excellent OER electrocatalytic activity of NiO/CNT/CC catalysts can be attributed to the synergy effect between NiO and CNT.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"17 3","pages":"527 - 535"},"PeriodicalIF":2.8,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}