Electrocatalysis最新文献_第2页

The Impact of Composition on the Photoelectrochemical Performance of Molybdenum-Modified Tungsten Oxide in Acidic Media 组成对钼改性氧化钨在酸性介质中光电化学性能的影响

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-02-03 DOI: 10.1007/s12678-025-00931-z

Lalita Sharma, Kateřina Minhová Macounová, Roman Nebel, Petr Krtil

{"title":"The Impact of Composition on the Photoelectrochemical Performance of Molybdenum-Modified Tungsten Oxide in Acidic Media","authors":"Lalita Sharma, Kateřina Minhová Macounová, Roman Nebel, Petr Krtil","doi":"10.1007/s12678-025-00931-z","DOIUrl":"10.1007/s12678-025-00931-z","url":null,"abstract":"<div><p>The efficiency of photoelectrochemical (PEC) water splitting is considerably controlled by the recombination of photogenerated electron/hole charge carriers at the interface. Herein, the correlation between composition and photoelectrochemical activity is studied by utilizing molybdenum-modified tungsten oxide electrodes. Molybdenum tungsten mixed oxides (Mo<sub><i>x</i></sub>W<sub>1−<i>x</i></sub>O<sub>3</sub>) were synthesized by <i>spray-freeze/freeze-drying</i> approach by varying <i>x</i> from 0 to 1 and studied as a photoanode. The structural changes after Mo substitution in tungsten oxide (Mo<sub><i>x</i></sub>W<sub>1−<i>x</i></sub>O<sub>3</sub>; 0 ≤ <i>x</i> ≤ 1.0) were observed as a function of the composition. In binary oxides, monoclinic structure (ℽ-phase) was observed until Mo substitution (<i>x</i>) reached 0.2. A coexistence of both monoclinic and orthorhombic phases was observed for <i>x</i> varying from 0.2 to 0.8. All synthesized n-semiconducting materials were photoelectrochemically active in water splitting under the acidic condition of HClO<sub>4</sub>. The highest PEC activity was observed for the sample with low Mo content (<i>x</i> = 0.05) for which the narrowest band gap was determined. The overall activity decrease encountered for Mo-rich materials can be related to a higher tendency to photoinduced proton insertion facilitated by rhombohedral structure. The insight into the mechanism was determined by differential electrochemical mass spectrometry (DEMS). Oxygen (<i>m</i>/<i>z</i> 32) and hydrogen peroxide (<i>m</i>/<i>z</i> 34) were identified as main products. The material with small variation in compositions (<i>x</i> = 0.05) significantly influenced catalytic activity and selectivity, highlighting the importance of the material’s design.</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 3","pages":"451 - 461"},"PeriodicalIF":2.7,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12678-025-00931-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840260","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}

引用次数: 0

Correction to: Au Cluster‑derived Electrocatalysts for CO2 Reduction 修正：金簇衍生的二氧化碳还原电催化剂

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-02-03 DOI: 10.1007/s12678-025-00934-w

Shailendra Kumar Sharma, Hani Taleshi Ahangari, Bernt Johannessen, Vladimir B. Golovko, Aaron T. Marshall

引用次数: 0

Electrochemical Detection of Miltefosine in Urine Using Amino Functionalised Multi-walled Carbon Nanotubes and [Fe(CN)6]−3/−4 as a Redox Couple 氨基功能化多壁碳纳米管和[Fe(CN)6]−3/−4作为氧化还原偶联电化学检测尿中米替福辛

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-01-29 DOI: 10.1007/s12678-025-00928-8

Darko Kwabena Adu, Zondi Nate, John Alake, Blessing Wisdom Ike, Lungelo Miya, Sachin Balaso Mohite, Ruchika Chauhan, Rajshekhar Karpoormath

{"title":"Electrochemical Detection of Miltefosine in Urine Using Amino Functionalised Multi-walled Carbon Nanotubes and [Fe(CN)6]−3/−4 as a Redox Couple","authors":"Darko Kwabena Adu, Zondi Nate, John Alake, Blessing Wisdom Ike, Lungelo Miya, Sachin Balaso Mohite, Ruchika Chauhan, Rajshekhar Karpoormath","doi":"10.1007/s12678-025-00928-8","DOIUrl":"10.1007/s12678-025-00928-8","url":null,"abstract":"<div><p>Miltefosine is an alkyllylosophospholipid analogue used to treat visceral leishmaniasis. Recently, reports have been made of suspected counterfeit miltefosine on the Indian market. With the risk counterfeit drugs pose to drug resistance development, quality control of antileishmanial drugs has become important. Hence, in this study, amino-functionalized multi-walled carbon nanotubes (MWCNT-NH<sub>2</sub>) were synthesised and characterised using Fourier transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Also, electrochemical impedance spectroscopy and cyclic voltammetry were used to study the electrochemical properties of the synthesised MWCNT-NH<sub>2</sub>. A complex was formed between MWCNT-NH<sub>2</sub> and miltefosine (Mil-MWCNT-NH<sub>2</sub>). Five microliters of Mil-MWCNT-NH<sub>2</sub> was drop-cast on glassy carbon electrode, and differential pulse voltammetry studies were carried out to assess the performance of the sensor. Using [Fe(CN)<sub>6</sub>]<sup>-3/-4</sup> as a redox couple, a calibration study was carried out at different concentrations (0–250 µM) to establish the concentration range of the sensor. A linear response was established. With a detection limit of 1 µM, the fabricated sensor is a viable tool for detecting antileishmanial drug miltefosine in urine samples and possible application in quality control of miltefosine against counterfeiting.</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 3","pages":"440 - 450"},"PeriodicalIF":2.7,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12678-025-00928-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840519","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}

引用次数: 0

Non-enzymatic Electrochemical Sensing of Glyphosate Pesticide Using Nickel-Based Metal–Organic Framework 基于镍基金属-有机框架的草甘膦农药非酶电化学传感

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-01-25 DOI: 10.1007/s12678-024-00923-5

Ravi Patel, Ragini Gupta, Himmat Singh Kushwaha

{"title":"Non-enzymatic Electrochemical Sensing of Glyphosate Pesticide Using Nickel-Based Metal–Organic Framework","authors":"Ravi Patel, Ragini Gupta, Himmat Singh Kushwaha","doi":"10.1007/s12678-024-00923-5","DOIUrl":"10.1007/s12678-024-00923-5","url":null,"abstract":"<div><p>Pesticide (glyphosate) monitoring has become a focal point of concern as the unregulated application of pesticides puts both human health and the ecosystem at serious risk. Effective tracking of glyphosate levels is essential to mitigate its adverse effects and ensure the safety of the ecosystem and the human population. This study develops a novel electrochemical (EC) sensor using a nickel-metal organic framework (Ni-MOF) modified electrode to detect ultra-low concentrations of glyphosate pesticide. A one-pot solvothermal approach to synthesize Ni-MOF and a one-step sensor fabrication approach were adopted to modify the electrode surface of an electrochemical sensor. The Ni-MOF material coating on the working electrode surface increases the electrode’s electroactive surface area, promotes electron transport between the electrodes, and demonstrates selectivity and sensitivity towards glyphosate. This electrochemical sensor has a detection limit of 1.9 parts per billion (ppb) or 0.0113 nM, over an extensive concentration range of 0.166–0.666 µM/L. Further, the proposed sensor exhibits excellent stability and reproducibility with a standard deviation of around 2.8% in relative peak current. It shows excellent selectivity against various interfering substances with approximately ≤ 5% change in the current response. Finally, to showcase its practical applicability, the sensor was assessed by a glyphosate-spiked real sample.</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 3","pages":"404 - 413"},"PeriodicalIF":2.7,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840480","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

Fabrication of XCoFe2O4 (X=Pr, Nd)/GO Nanocomposites for Hydrogen Evolution Reaction and Supercapacitor Application XCoFe2O4 (X=Pr, Nd)/GO纳米复合材料的制备及其在超级电容器中的应用

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-01-25 DOI: 10.1007/s12678-025-00930-0

Sidra Aslam, Arshia Iqbal, Muhammad Naveed, Misbah Mirza, Waseem Abbas, Muhammad Safdar

{"title":"Fabrication of XCoFe2O4 (X=Pr, Nd)/GO Nanocomposites for Hydrogen Evolution Reaction and Supercapacitor Application","authors":"Sidra Aslam, Arshia Iqbal, Muhammad Naveed, Misbah Mirza, Waseem Abbas, Muhammad Safdar","doi":"10.1007/s12678-025-00930-0","DOIUrl":"10.1007/s12678-025-00930-0","url":null,"abstract":"<div><p>The development of active bifunctional electrocatalysts is crucial in reducing dependence on precious-metal-based materials for energy production and storage. In this work, we present the synthesis of novel nanocomposites of XCoFe<sub>2</sub>O<sub>4</sub> (where X represents Pr or Nd) integrated with graphene oxide (GO) using a hydrothermal method for light-induced hydrogen evolution reaction (HER) and supercapacitor functions. Among the synthesized electrocatalysts, NdPr-CoFe<sub>2</sub>O<sub>4</sub>/GO exhibits superior HER performance, characterized by a minimal overpotential at photocurrent density of 10 mA cm<sup>−2</sup> in 1 M KOH solution. Additionally, the composite shows a high specific capacitance of 1590.5 F/g at 3 A/g, maintaining approximately 97.6% of its capacitance after 1000 cycles. The enhanced performance is attributed to the synergistic effects of optimal bimetallic substitution, maximized electrochemical surface area, reduced particle size, and minimized charge transfer resistance. This study opens new pathways for the design of spinel ferrite-GO composites for efficient energy conversion and storage applications.</p><h3>Graphical Abstract</h3><p>Graphical abstract presenting applications of synthesized catalysts.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 3","pages":"427 - 439"},"PeriodicalIF":2.7,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840482","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

Effect of TaOx Interlayer Prepared with Different Solvent on Microstructure and Properties of Ti/TaOx/IrO2-Ta2O5 Electrode 不同溶剂制备的TaOx中间层对Ti/TaOx/IrO2-Ta2O5电极微观结构和性能的影响

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-01-25 DOI: 10.1007/s12678-024-00925-3

Mingshuai Guo, Yonglei Xin, Likun Xu, Lili Xue, Tigang Duan, Rongrong Zhao, Shuai Zhou, Li Li

{"title":"Effect of TaOx Interlayer Prepared with Different Solvent on Microstructure and Properties of Ti/TaOx/IrO2-Ta2O5 Electrode","authors":"Mingshuai Guo, Yonglei Xin, Likun Xu, Lili Xue, Tigang Duan, Rongrong Zhao, Shuai Zhou, Li Li","doi":"10.1007/s12678-024-00925-3","DOIUrl":"10.1007/s12678-024-00925-3","url":null,"abstract":"<div><p>The impact of TaO<sub>x</sub> interlayers prepared by thermal decomposition using different solvents (ethanol, n-butanol, ethylene glycol) on Ti/TaO<sub>x</sub>/IrO<sub>2</sub>-Ta<sub>2</sub>O<sub>5</sub> electrodes has been investigated using analytical methods such as SEM, XRD, XPS, FIB-TEM, and electrochemical techniques. The results demonstrate that the synthesized TaO<sub>x</sub> interlayers are mainly composed of amorphous TaO<sub>x</sub> and a little of Ta<sub>2</sub>O<sub>5</sub> crystallites with a thin TiO<sub>x</sub> sublayer on titanium substrate. The solvents affect the TaO<sub>x</sub> loadings and fractions of surface cracks due to the difference in viscosity. The Ti/TaO<sub>x</sub>/IrO<sub>2</sub>-Ta<sub>2</sub>O<sub>5</sub> electrode with the interlayer prepared using ethylene glycol has the largest electrochemically active surface area and electrocatalytic activity for oxygen evolution reaction, while the electrode with the TaO<sub>x</sub> interlayer formed using n-butanol as solvent presents highest stability.</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 3","pages":"414 - 426"},"PeriodicalIF":2.7,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840481","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

An Overview of the Pd Based Electrocatalysts Utilized in Direct Alcohol Fuel Cells 直接醇燃料电池中钯基电催化剂的研究进展

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-01-24 DOI: 10.1007/s12678-024-00920-8

Zifan Wu, Runbin Duan, Jiali Cui, Cuiping Ye, Shichao Zhang, Shaohui Yan

{"title":"An Overview of the Pd Based Electrocatalysts Utilized in Direct Alcohol Fuel Cells","authors":"Zifan Wu, Runbin Duan, Jiali Cui, Cuiping Ye, Shichao Zhang, Shaohui Yan","doi":"10.1007/s12678-024-00920-8","DOIUrl":"10.1007/s12678-024-00920-8","url":null,"abstract":"<div><p>It is well known that direct alcohol fuel cells (DAFCs) are ideal power sources for portable equipment and electric vehicles, due to the advantages of alcohol, such as renewability, safety, high energy density and ease of storage and transportation. However, their applications are limited by the scarce resources and poor operational durability of commercial Pt-based catalysts. Consequently, numerous alternative catalysts have been reported over the past decades, including MOF (Metal–Organic Framework) materials, M–N-C (M = transition metal atom) single-atom catalysts, Pd-based catalysts and others. Among these, Pd-based catalysts exhibit high electro-activity for both alcohol electro-oxidations and oxygen reduction reactions, particularly for ethanol electro-oxidation. Significant efforts have been made to enhance the activity and durability of Pd-based catalysts for use in DAFCs. Despite these efforts, commercialization is progressing slowly. Therefore, advancing the commercial application of DAFCs has become a pressing issue for both enterprises and researchers. Exploring novel Pd-based catalysts with exceptionally high activity and stability is likely to address this challenge. This review summarizes the classifications, synthesis methods, current research status and prospects of Pd-based catalysts to provide effective research directions and methods for improving their investigation.</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 2","pages":"197 - 223"},"PeriodicalIF":2.7,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184640","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

High-Throughput Electrocatalyst Screening Using Bipolar Electrode Arrays: A Mini Review 双极电极阵列高通量电催化剂筛选：综述

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-01-22 DOI: 10.1007/s12678-025-00929-7

Nguyen Ngoc Nghia, Nguyen Thi Kim Phuong, Bui The Huy

{"title":"High-Throughput Electrocatalyst Screening Using Bipolar Electrode Arrays: A Mini Review","authors":"Nguyen Ngoc Nghia, Nguyen Thi Kim Phuong, Bui The Huy","doi":"10.1007/s12678-025-00929-7","DOIUrl":"10.1007/s12678-025-00929-7","url":null,"abstract":"<div><p>Electrocatalysts play a critical role in various energy conversion and storage technologies, including fuel cells, electrolyzers, and batteries. However, finding the optimal electrocatalyst for a specific reaction is a challenging and time-consuming task, as there are many possible materials and compositions to explore. Bipolar electrode (BPE) arrays are a promising technique for high-throughput screening of electrocatalysts, as they allow simultaneous testing of multiple candidates under identical conditions without external wiring. This mini-review summarizes recent advancements and current challenges in developing and applying BPE arrays for electrocatalyst screening. We discuss the design and fabrication of BPE arrays, the methods for depositing electrocatalysts on BPEs. We also highlight some examples of BPE arrays for screening electrocatalysts for various reactions, such as oxygen reduction, hydrogen evolution, and organic oxidation. We conclude with some perspectives and suggestions for future research directions in this emerging field.</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 3","pages":"361 - 378"},"PeriodicalIF":2.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840302","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

Enzyme Mimic Behavior of Platinum(II) Complex with Tridentate Ligand—Fe3O4—MWCNT Nanocomposite for the Electrochemical Detection of H2O2 and NADH 铂（II）配合物与三齿配体- fe3o4 - mwcnt纳米复合材料的酶模拟行为用于电化学检测H2O2和NADH

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-01-10 DOI: 10.1007/s12678-025-00927-9

İzzet Koçak, Fatih Pekdemir

{"title":"Enzyme Mimic Behavior of Platinum(II) Complex with Tridentate Ligand—Fe3O4—MWCNT Nanocomposite for the Electrochemical Detection of H2O2 and NADH","authors":"İzzet Koçak, Fatih Pekdemir","doi":"10.1007/s12678-025-00927-9","DOIUrl":"10.1007/s12678-025-00927-9","url":null,"abstract":"<div><p>A platinum-based complex molecule, [PtLCl]Cl (Pt-L), featuring a tridentate ligand (<i>L</i> = 2,6-bis(benzimidazol-2-yl)-4-hydroxypyridine) was synthesized. Subsequently, Pt-L was successfully bonded to amine-terminated Fe<sub>3</sub>O<sub>4</sub>NP, and MWCNTs were incorporated into the modified Fe<sub>3</sub>O<sub>4</sub> surface. The resulting electrode was shown to possess outstanding electrocatalytic activity for detecting H<sub>2</sub>O<sub>2</sub> and NADH, characterized by enhanced cathodic or anodic peak responses and favorable shifts in the reduction or oxidation peak potentials for both analytes. The sensing platform demonstrated excellent electrochemical performance in non-enzymatic measurements of H<sub>2</sub>O<sub>2</sub> and NADH, achieving notably low detection limits of 0.017 µmol L<sup>−1</sup> for H<sub>2</sub>O<sub>2</sub> and 0.113 µmol L<sup>−1</sup> for NADH. These findings were acquired within the concentration range of 10 to 500 µmol L<sup>−1</sup>, indicating the linear portion of the calibration graphs obtained in the concentration ranges of 10 to 5000 µmol L<sup>−1</sup> for H₂O₂ and 10 to 25,000 µmol L<sup>−1</sup> for NADH, which exhibited exponential behavior for both analytes. The developed sensor displayed high responsiveness, long-lasting stability, and requisite interference, rendering it suitable for routine detection of H<sub>2</sub>O<sub>2</sub> and NADH in biological specimens.</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 3","pages":"391 - 403"},"PeriodicalIF":2.7,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840311","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

Production of Highly Efficient Pt/C for PEM Fuel Cell Applications 用于PEM燃料电池的高效Pt/C的生产

IF 2.7 4区化学

Electrocatalysis Pub Date : 2025-01-09 DOI: 10.1007/s12678-025-00926-w

Jülide Hazal Özdemir, Aydın Haşimoğlu, Hüseyin Elçiçek, Oğuz Kaan Özdemir, Nuri Akkaş

{"title":"Production of Highly Efficient Pt/C for PEM Fuel Cell Applications","authors":"Jülide Hazal Özdemir, Aydın Haşimoğlu, Hüseyin Elçiçek, Oğuz Kaan Özdemir, Nuri Akkaş","doi":"10.1007/s12678-025-00926-w","DOIUrl":"10.1007/s12678-025-00926-w","url":null,"abstract":"<div><p>PEM fuel cell technologies have emerged as promising candidates for advancing sustainable energy solutions, primarily due to their exceptional efficiency and minimal environmental impact. However, the widespread commercialization of fuel cells is hindered by the high cost and limited availability of platinum catalysts, which play a critical role in facilitating electrochemical reactions. This research mainly focused on investigating innovative solutions aiming to mitigate platinum loading while simultaneously preserving or potentially enhancing their performance. To this end, the impact of two distinct surfactants, Tween 40 and Tween 80, was examined to assess their influence on the synthesis and characteristics of platinum nanoparticles immobilized on carbon supports. Subsequently, their electrochemical activities were compared. The catalysts were synthesized using the polyol method with the incorporation of surfactants, and their performance was compared with that of Pt/C catalysts without surfactants. TGA analysis indicated a significant reduction of approximately 12% in the Pt content of the catalyst synthesized using Tween 80 surfactant. However, CV analysis revealed a remarkable increase of 85% in the ECSA for the same catalyst. Furthermore, significant improvements in the performance of this catalyst were also observed in the single-cell test setup. The high performance achieved with a lower Pt content in the catalyst layer highlights its potential for large-scale commercialization.</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 3","pages":"379 - 390"},"PeriodicalIF":2.7,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840416","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