Electrocatalysis最新文献

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Facile Synthesis of CoP3/MoO3 Nanoparticles Grown on Kapok Fiber for Efficient Oxygen Evolution Reaction 木棉纤维上快速合成CoP3/MoO3纳米颗粒的高效析氧反应
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-06-25 DOI: 10.1007/s12678-025-00966-2
Minfeng Meng, Shaohua Hu, Liang Zhang, Jingtao Su, Xianlong Ge, Yankai Song, Kaiwen Liu, Yingying Gu
{"title":"Facile Synthesis of CoP3/MoO3 Nanoparticles Grown on Kapok Fiber for Efficient Oxygen Evolution Reaction","authors":"Minfeng Meng,&nbsp;Shaohua Hu,&nbsp;Liang Zhang,&nbsp;Jingtao Su,&nbsp;Xianlong Ge,&nbsp;Yankai Song,&nbsp;Kaiwen Liu,&nbsp;Yingying Gu","doi":"10.1007/s12678-025-00966-2","DOIUrl":"10.1007/s12678-025-00966-2","url":null,"abstract":"<div><p>Earth-abundant and efficient electrocatalysts have attracted widespread attention for achieving thorough breakthrough of the oxygen evolution reaction (OER) as well as exploring sustainable energy. In this research, a CoP<sub>3</sub>/MoO<sub>3</sub> composite grown on the kapok fiber (KF) with 3D hollow tubular structure was obtained using a facile calcining synthesis approach. Due to the construction of CoP<sub>3</sub> and MoO<sub>3</sub> heterointerface favoring the fast electron transfer, the as-synthesized CoP<sub>3</sub>/MoO<sub>3</sub>/KF@ME showed excellent electrocatalytic OER performance, showing low overpotentials of 208 mV at 10 mA cm<sup>−2</sup> and 351 mV at 50 mA cm<sup>−2</sup> with a small Tafel slope of 73 mV dec<sup>−1</sup> in alkaline electrolyte, respectively. This work helped to construct a non-precious metal and biomass-derived nanomaterial. </p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 5","pages":"909 - 918"},"PeriodicalIF":2.8,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169912","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}
引用次数: 0
Mesoporous Cobalt-Molybdenum Oxide as Highly Efficient Anode in Alkaline Water Electrolysis 介孔钴钼氧化物作为高效阳极在碱性电解中的应用
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-06-25 DOI: 10.1007/s12678-025-00967-1
Mohamed M. Abdel-Galeil, Yushi Ouchi, Soma Takahashi, Zenta Kato
{"title":"Mesoporous Cobalt-Molybdenum Oxide as Highly Efficient Anode in Alkaline Water Electrolysis","authors":"Mohamed M. Abdel-Galeil,&nbsp;Yushi Ouchi,&nbsp;Soma Takahashi,&nbsp;Zenta Kato","doi":"10.1007/s12678-025-00967-1","DOIUrl":"10.1007/s12678-025-00967-1","url":null,"abstract":"<div><p>The development of cost-effective, high-performance oxygen evolution reaction (OER) catalysts to replace rare noble metal oxides remains a critical challenge in advancing alkaline water electrolysis (AWE). A mesoporous cobalt-molybdenum oxide (Co–Mo–O) was synthesized via thermal decomposition to evaluate electrochemical anodic performance in alkaline solution. A low potential of 1.6 V vs. RHE at 1000 A m<sup>−2</sup> was recorded under optimized Co–Mo–O catalyst (0.52 M Co<sup>2+</sup>, 0.13 M Mo<sup>5+</sup>). Structural analysis revealed porous architecture via SEM, enhancing gas bubble detachment and stress resilience, thereby sustaining catalytic activity. Accelerated durability tests under industrial AWE conditions demonstrated exceptional stability, with minimal weight loss rates (0.1–0.2 mg day<sup>−1</sup> at 4000–6000 A m<sup>−2</sup>). Long-term chronopotentiometry confirmed a stable cell potential (~ 2.38 V) over 70 h, with a degradation rate of &lt; 0.006 mg h<sup>−1</sup>. These results position Co–Mo–O as scalable, noble metal-free catalysts with performance metrics approaching those of precious metal benchmarks, offering significant potential for industrial electrochemical applications.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 5","pages":"895 - 908"},"PeriodicalIF":2.8,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169913","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}
引用次数: 0
Hydrothermally Grown p-Type CuO Nanotaper for Saliva Glucose Sensing Application 水热生长p型CuO纳米纸在唾液葡萄糖传感中的应用
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-06-17 DOI: 10.1007/s12678-025-00964-4
Tanmoy Majumder, Kaberi Saha, Kamalesh Debnath, Jehova Jire L. Hmar, Raju Patel
{"title":"Hydrothermally Grown p-Type CuO Nanotaper for Saliva Glucose Sensing Application","authors":"Tanmoy Majumder,&nbsp;Kaberi Saha,&nbsp;Kamalesh Debnath,&nbsp;Jehova Jire L. Hmar,&nbsp;Raju Patel","doi":"10.1007/s12678-025-00964-4","DOIUrl":"10.1007/s12678-025-00964-4","url":null,"abstract":"<div><p>Herein, we reported a simple, low-cost, extremely sensitive non-enzymatic copper oxide nanotaper (CuO NT)-based electrochemical glucose sensor. CuO NT was synthesized using hydrothermal methods and characterized using a scanning electron microscope (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscope. The carrier concentration, diffusion length, depletion width, and potential barrier were estimated using the Mott-Schottky plot. Glucose sensing performance was studied using cyclic voltammetry, amperometry, and electrochemical impedance spectroscopy at different glucose concentrations. The CuO NT showed glucose sensitivity of 1.0977 mAmM<sup>−1</sup>cm<sup>−2</sup> in the linear detection range of 5 to 300 μM with a limit of detection (LOD) of 1.467 μM. Also, the CuO NT showed excellent selectivity and stability, which makes it a promising material for non-enzymatic and noninvasive saliva glucose sensing. Further, the CuO NT-based glucose sensor was modeled using an artificial neural network (ANN) to predict the unknown glucose concentration.</p></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 5","pages":"883 - 894"},"PeriodicalIF":2.8,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165852","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}
引用次数: 0
The First Electrochemical Evaluation of Crizotinib Anticancer Drug Based on Carbon Felt Modified with Molecularly Imprinted Poly(pyrogallol) 分子印迹聚邻苯三酚改性碳毡对克唑替尼抗癌药的首次电化学评价
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-06-10 DOI: 10.1007/s12678-025-00963-5
Noor Alhuda Jabaar Hamzah, Mahmoud Roushani, Zahra Mirzaei Karazan
{"title":"The First Electrochemical Evaluation of Crizotinib Anticancer Drug Based on Carbon Felt Modified with Molecularly Imprinted Poly(pyrogallol)","authors":"Noor Alhuda Jabaar Hamzah,&nbsp;Mahmoud Roushani,&nbsp;Zahra Mirzaei Karazan","doi":"10.1007/s12678-025-00963-5","DOIUrl":"10.1007/s12678-025-00963-5","url":null,"abstract":"<div><p>Crizotinib (CZT) is an anticancer drug confirmed for the treatment of lung cancer. It is a small-molecule inhibitor of tyrosine kinases. Therefore, selective and accurate measurement of CZT in human biological samples is highly significant. This research describes the first electrochemical sensor for CZT detection. Here, the design and fabrication of an electrochemical sensor based on molecularly imprinted polymer (MIP) is introduced. Employing the electropolymerization strategy, the MIP was synthesized on the carbon felt (CF) surface as the working electrode using pyrogallol (PG) as the functional monomer and CZT as the analyte. CF is the low-cost carbon-based material with high inherent surface area, porosity, and conductivity. There is linearity between current response and CZT concentration over a range from 0.005 to 800 nM with a detection limit (LOD) of 0.0016 nM. Assessment in the presence of similar compounds confirmed the superior selectivity of the sensor. Lastly, the sensor was applied for the detection of CZT in blood serum and urine samples with acceptable recovery. Furthermore, the introduced sensor’s performance was compared and verified through high-performance liquid chromatography (HPLC). This electrochemical sensor provides a promising possibility for practical applicability.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 5","pages":"871 - 882"},"PeriodicalIF":2.8,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164135","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}
引用次数: 0
Advancements in Electrochemical Sensors for Detection of Environmental Pollutants: A Review 电化学传感器在环境污染物检测中的研究进展
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-06-04 DOI: 10.1007/s12678-025-00962-6
Eshita Sharma, Akash Singh, Karan Singh, Subrahmanya Sarma Ganti, Ghanshyam Das Gupta, Sant Kumar Verma
{"title":"Advancements in Electrochemical Sensors for Detection of Environmental Pollutants: A Review","authors":"Eshita Sharma,&nbsp;Akash Singh,&nbsp;Karan Singh,&nbsp;Subrahmanya Sarma Ganti,&nbsp;Ghanshyam Das Gupta,&nbsp;Sant Kumar Verma","doi":"10.1007/s12678-025-00962-6","DOIUrl":"10.1007/s12678-025-00962-6","url":null,"abstract":"<div><p>Electrochemical methods provide a sustainable, effective, and adaptable solution for detecting pollutants in various ecological and industrial environments. This review examines the principles, operational mechanisms, and progress in different electrochemical sensors, such as potentiometric, conductometric, amperometric, and photoelectrochemical sensors. These sensors exhibit remarkable sensitivity and selectivity, allowing for the identification of pharmaceutical contaminants, agricultural pesticides, industrial emissions, and biological pollutants at minimal concentrations. Significant developments comprise molecularly imprinted sensors for drugs like losartan and remdesivir, inkjet-printed nitrate sensors for soil analysis, and carbon-nanostructured potentiometric sensors for heavy metals, including mercury and cadmium. Moreover, advancements like photoelectrochemical sensors that employ materials like BiVO<sub>4</sub> and SiO<sub>2</sub>/WO<sub>3</sub> appear promising for identifying pesticides and food impurities through enhanced light-based techniques. Although there are obstacles such as expenses and scalability, the incorporation of renewable energy and innovative nanomaterials improves the practicality of these methods, facilitating sustainable and accurate pollutant tracking.</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":"16 5","pages":"773 - 798"},"PeriodicalIF":2.8,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162018","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}
引用次数: 0
Ultrasonic Synthesis of Nanotubular Hausmannite with Peapod-Like Morphology for Sensitive and Selective Electrochemical Nicotine Detection 豆荚状纳米管豪斯曼碱的超声合成及其对尼古丁的电化学检测
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-06-03 DOI: 10.1007/s12678-025-00965-3
Gayathri Gopalakrishnan, Ramasubbu Alagunambi, Srinivasan Anbalagan, Gurusamy Rajagopal, Nanjan Velmani, Rajasekar Krishnan
{"title":"Ultrasonic Synthesis of Nanotubular Hausmannite with Peapod-Like Morphology for Sensitive and Selective Electrochemical Nicotine Detection","authors":"Gayathri Gopalakrishnan,&nbsp;Ramasubbu Alagunambi,&nbsp;Srinivasan Anbalagan,&nbsp;Gurusamy Rajagopal,&nbsp;Nanjan Velmani,&nbsp;Rajasekar Krishnan","doi":"10.1007/s12678-025-00965-3","DOIUrl":"10.1007/s12678-025-00965-3","url":null,"abstract":"<div><p>A novel nanotubular hausmannite (NT-HSM) was synthesized using a readily available ultrasonic water bath and thoroughly characterized. Transmission electron microscopy (TEM) confirmed the formation of nanotubes with an average diameter of ~ 10 nm, featuring distinctive pea-pod-like structures both within and on the outer walls, which served as nucleation sites for uniform nanotube growth. The electrochemical properties of NT-HSM were evaluated by modifying a glassy carbon electrode (GCE) and employing it for the sensitive detection of nicotine. Electrochemical quantification was performed using cyclic voltammetry (CV), differential pulse voltammetry (DPV), and amperometry in 0.05 M NaClO<sub>4</sub> (pH 7). DPV and amperometric measurements demonstrated a linear relationship between peak current and nicotine concentration in the range of 1–130 µM, with a detection limit of 0.9 µM. The impact of common interfering species such as ascorbic acid (AA) and uric acid (UA) was assessed, revealing no significant influence on the oxidation response of nicotine, thereby confirming the high selectivity of the NT-HSM modified electrode. The electro-oxidation of nicotine was attributed to an intermediate electron transfer mechanism facilitated by the Mn<sup>3+</sup>/Mn<sup>2+</sup> redox couple. Furthermore, the NT-HSM based sensor was successfully applied to the determination of nicotine in commercial cigarette sample, exhibiting a well-defined and reproducible redox response. These findings highlight the potential of NT-HSM as an efficient electrode modifier for selective and sensitive nicotine detection.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 5","pages":"856 - 870"},"PeriodicalIF":2.8,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161642","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}
引用次数: 0
Bifunctional Electrocatalysis of Copper-Doped Cerium Oxide Nanocage Networks Enabling HER and OER 铜掺杂氧化铈纳米笼网络实现HER和OER的双功能电催化
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-05-19 DOI: 10.1007/s12678-025-00961-7
Prabin Kumar Joshi, Sabina Dahal, Raj Kumar Rai, Ganesh Bhandari, Gopi Chandra Kaphle, Dasu Ram Paudel
{"title":"Bifunctional Electrocatalysis of Copper-Doped Cerium Oxide Nanocage Networks Enabling HER and OER","authors":"Prabin Kumar Joshi,&nbsp;Sabina Dahal,&nbsp;Raj Kumar Rai,&nbsp;Ganesh Bhandari,&nbsp;Gopi Chandra Kaphle,&nbsp;Dasu Ram Paudel","doi":"10.1007/s12678-025-00961-7","DOIUrl":"10.1007/s12678-025-00961-7","url":null,"abstract":"<div><p>An advanced water electrolysis process that generates clean and sustainable hydrogen fuel offers a scalable solution for storing abundant but intermittent energy from renewable sources by converting water into hydrogen and oxygen using an electric current, facilitating the integration of renewable energy into practical applications. Moreover, synthesis of sustainable and environmentally friendly methods for synthesizing nanomaterials is correspondingly crucial for advancing water-splitting technology. This study introduces a green synthesis approach for Cu-doped CeO<sub>2</sub> nanoparticles using plant extracts as reducing and stabilizing agents. A 3D nanocage network of Cu-CeO<sub>2</sub> electrocatalyst exhibits featured electrochemical performances for HER and arduous OER significantly lowering the overpotential due to the reduced reaction barrier, lower resistance, and accelerated charge transfer process. The Cu-doped CeO<sub>2</sub> exhibits lower overpotentials of 142 mV and 166 mV at current densities of 50 mA cm<sup>−2</sup> and 100 mA cm<sup>−2</sup>, respectively, and a Tafel slope of 58.8 mV dec<sup>−1</sup>, indicating superior catalytic activity. Density functional theory (DFT) calculations reveal that the Cu doping on the CeO<sub>2</sub> matrix increases the rate of H<sub>2</sub>O adsorption during water-splitting reaction due to the introduction of Cu-3d orbitals near the Fermi level (<i>E</i><sub>F</sub>), which enhances charge carrier density. Overall, Cu-doped CeO<sub>2</sub> nanoparticles demonstrate enhanced performance for green hydrogen production as an energy vector, while the green synthesis method offers a sustainable, low-impact alternative for producing high-performance nanomaterials.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 5","pages":"844 - 855"},"PeriodicalIF":2.8,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166776","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}
引用次数: 0
Tween Compounds as Eco-Friendly Suppressors for Acid Copper Electroplating Applications of Microvia 微孔镀铜中环保抑制剂间化合物的应用
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-05-17 DOI: 10.1007/s12678-025-00960-8
Zewei Lin, Zhihua Tao, Yuxuan Huang, Jihua Zhang
{"title":"Tween Compounds as Eco-Friendly Suppressors for Acid Copper Electroplating Applications of Microvia","authors":"Zewei Lin,&nbsp;Zhihua Tao,&nbsp;Yuxuan Huang,&nbsp;Jihua Zhang","doi":"10.1007/s12678-025-00960-8","DOIUrl":"10.1007/s12678-025-00960-8","url":null,"abstract":"<div><p>Tween (TW) compounds, on account of their environmentally benign and non-toxic characteristics, were systematically studied as prospective eco-friendly suppressants in the process of copper plating for blind hole filling. The synergistic effects between TW and other additives were verified by means of chronopotentiometry, cyclic voltammetry, and electrochemical impedance spectroscopy. The outcomes of the electrochemical tests revealed that the competitive adsorption behavior between bis-(3-sulfopropyl) disulfide (SPS) and TW is contingent upon the current density and the intensity of convection. Metallographic section analysis demonstrated that TW exhibits outstanding microvia filling capabilities for micro blind vias with a diameter of 150 µm and a depth of 80 µm. Notably, TW-80 was able to attain a filling rate of 96.15% following electrodeposition for 60 min at a current density of 2 A/dm<sup>2</sup>. Quantum chemical calculations suggested that the relatively smaller band gap and the clustered molecular structure of TW-80 are more conducive to its adsorption onto the electrode surface, leading to the formation of a barrier layer, which in turn restrains the deposition of copper.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 5","pages":"828 - 843"},"PeriodicalIF":2.8,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166982","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}
引用次数: 0
Electrochemically Modified Sensor Based on Reduced Graphene Oxide–Molybdenum Disulfide–Doped Poly(p-Aminobenzene Sulfonic Acid) Nanocomposite Film for the Detection of Morphine 基于还原氧化石墨烯-二硫化钼掺杂聚对氨基苯磺酸纳米复合膜的电化学修饰传感器用于吗啡检测
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-05-13 DOI: 10.1007/s12678-025-00957-3
Pinky Abraham, Renjini Sadhana, Pavitha Pushpakaran Anitha, Akhilash Mohanan Pillai
{"title":"Electrochemically Modified Sensor Based on Reduced Graphene Oxide–Molybdenum Disulfide–Doped Poly(p-Aminobenzene Sulfonic Acid) Nanocomposite Film for the Detection of Morphine","authors":"Pinky Abraham,&nbsp;Renjini Sadhana,&nbsp;Pavitha Pushpakaran Anitha,&nbsp;Akhilash Mohanan Pillai","doi":"10.1007/s12678-025-00957-3","DOIUrl":"10.1007/s12678-025-00957-3","url":null,"abstract":"<div><p>The present study explores the potential of molybdenum disulfide–reduced graphene oxide/poly(p-aminobenzene sulfonic acid) (MoS<sub>2</sub>-rGO/poly(p-ABSA)) for the detection of morphine (MO). The developed nanocomposites have an interconnected 3D network structure, in which the organic conducting polymer poly(p-ABSA) forms a uniform coating over the surface of the MoS<sub>2</sub>-rGO composite. The composite film synthesis has been optimized to improve the electrocatalytic behavior of the developed sensor. The synergetic effect of MoS<sub>2</sub>-rGO and poly(p-ABSA) composites contributed towards the excellent electrocatalytic activity of the developed sensor against MO. A low detection limit of 76 nM with a good regression between MO concentration and peak currents (R<sup>2</sup> = 0.99) has been achieved within the range of 50 nM to 30 µM. The fabricated sensor was successfully employed to determine MO in real samples and the results showed that it exhibited better reliability for real samples assay. Further, the potential of MoS<sub>2</sub>-rGO/poly(p-ABSA)-based sensor as a commendable electrochemical sensing platform for simple and sensitive detection of various analytes has also been proposed.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 5","pages":"815 - 827"},"PeriodicalIF":2.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165965","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}
引用次数: 0
Unraveling Dopant Site Preferences in Transition Metal-Doped ZnO: Implications for Electrocatalytic Applications 揭示过渡金属掺杂ZnO的掺杂位点偏好:对电催化应用的影响
IF 2.8 4区 化学
Electrocatalysis Pub Date : 2025-05-10 DOI: 10.1007/s12678-025-00959-1
Alannisse M. Santos-Rivera, Joshua A. Ortiz-Fernandez, Juan A. Santana
{"title":"Unraveling Dopant Site Preferences in Transition Metal-Doped ZnO: Implications for Electrocatalytic Applications","authors":"Alannisse M. Santos-Rivera,&nbsp;Joshua A. Ortiz-Fernandez,&nbsp;Juan A. Santana","doi":"10.1007/s12678-025-00959-1","DOIUrl":"10.1007/s12678-025-00959-1","url":null,"abstract":"<div><p>Dopant positioning within metal oxide lattices has a significant influence on catalytic performance, yet it remains underexplored in many transition metal-doped systems. Using density functional theory (DFT) calculations, this study demonstrates that cobalt (Co) and manganese (Mn) dopants preferentially integrate into the bulk of the ZnO lattice, thereby limiting their availability at active surface sites critical for efficient oxygen evolution and oxygen reduction reactions. The results also indicate that hydroxyl coordination effectively stabilizes these dopants at the surface, enhancing overall catalytic activity. These findings underscore the importance of tailoring dopant location to optimize reaction kinetics in electrocatalytic applications, laying the groundwork for experimental validation through in situ techniques such as X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS).</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 5","pages":"808 - 814"},"PeriodicalIF":2.8,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164420","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}
引用次数: 0
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