Journal of Electroanalytical Chemistry最新文献_第7页

Photoelectrocatalytic highly selective oxidation of glycerol to C3 products on Mo:BiVO4/NiOOH photoanodes

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-13 DOI: 10.1016/j.jelechem.2025.119019

Haomin Gong , Rufeng Tian , Lu Niu , Yan Sun , Wanggang Zhang , Aili Wei , Jian Wang , Yiming Liu

{"title":"Photoelectrocatalytic highly selective oxidation of glycerol to C3 products on Mo:BiVO4/NiOOH photoanodes","authors":"Haomin Gong , Rufeng Tian , Lu Niu , Yan Sun , Wanggang Zhang , Aili Wei , Jian Wang , Yiming Liu","doi":"10.1016/j.jelechem.2025.119019","DOIUrl":"10.1016/j.jelechem.2025.119019","url":null,"abstract":"<div><div>The extensive adoption of biomass diesel has resulted in a notable increase in glycerol production as a by-product, thereby underscoring the significance of glycerol oxidation into high-value derivatives. This research focuses on the development of NiOOH-modified Molybdenum-doped Bismuth vanadate (Mo:BiVO<sub>4</sub>/NiOOH) photoanodes for the purpose of glycerol oxidation. The results indicate that the Mo:BiVO<sub>4</sub>/NiOOH configuration markedly improves the efficiency of electron-hole separation. Through adsorption and desorption experiments, it was observed that the Mo:BiVO<sub>4</sub>/NiOOH photoanode demonstrates a low affinity for glyceraldehyde (GLAD) and 1,3-dihydroxyacetone (DHA), thereby facilitating their desorption from the surface. Mechanistic studies revealed that the surface of the Mo:BiVO<sub>4</sub>/NiOOH photoanode generates carbon and hydroxyl radicals via holes. The hydroxyl group subsequently oxidizes the carbon radical, leading to the formation of GLAD and DHA. In this study, the synergistic effect of NiOOH loading and Mo doping on BiVO<sub>4</sub> was analyzed, and a photoanode with high selectivity in the glycerol conversion process was prepared, which provided important support for the progress of photoelectrocatalytic glycerol conversion.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"982 ","pages":"Article 119019"},"PeriodicalIF":4.1,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143436667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diffusive/ capacitive controlled process in solid-state proton batteries utilizing Gellan gum based biopolymer electrolytes: A synergetic study through cyclic voltammetry

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-13 DOI: 10.1016/j.jelechem.2025.119011

Meera Naachiyar Ramadhasan , Ragam M , Selvasekarapandian S

引用次数: 0

Sensitive detection of α-Fetoprotein using an electrochemiluminescence sensor combining molecular imprinting and aptamer recognition on a graphite carbon nitride/polypyrrole platform

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-10 DOI: 10.1016/j.jelechem.2025.119008

Jie Wang , Mu Yang , Yuxuan Chen , Shouren Li , Yingdan He , Songmei Wu , Yu Yu , Kejian Ding

引用次数: 0

N-doped VS2 cathode with shell-anchored structure for enhancing the storage performance of Zn-Ion batteries

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-10 DOI: 10.1016/j.jelechem.2025.119007

Rongguan Lv, Mohan Yue, Yi Zhang, Lin He, Huayu Wu, Yu Liu, Jindi Wang, Yingna Chang, Kefan Song, Rong Xing

引用次数: 0

Electrochemical dissolution behavior and characterisation of passivation films of PH13-8Mo in NaNO3 PH13-8Mo 在 NaNO3 中的电化学溶解行为和钝化膜的表征

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-10 DOI: 10.1016/j.jelechem.2025.119004

Li Ying, Zeng Yongbin, Zhang Rudong, Li Yanliang

{"title":"Electrochemical dissolution behavior and characterisation of passivation films of PH13-8Mo in NaNO3","authors":"Li Ying, Zeng Yongbin, Zhang Rudong, Li Yanliang","doi":"10.1016/j.jelechem.2025.119004","DOIUrl":"10.1016/j.jelechem.2025.119004","url":null,"abstract":"<div><div>PH13-8Mo stainless steel, renowned for its superior physical and mechanical properties due to advanced smelting processes, is widely employed in high-stakes aerospace applications, including nuclear energy systems, rocketry, and critical aerospace components. However, its high strength and hardness present challenges in machining, especially for intricate structural shapes. This study investigates the electrochemical machining (ECM) of PH13-8Mo, emphasizing its dissolution characteristics and the behavior of key constituent elements—iron (Fe), chromium (Cr), nickel (Ni), molybdenum (Mo), and aluminum (Al)—in corrosion processes. Techniques such as open circuit potential (OCP), linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS) were employed to characterize each element’s contribution to passivation. Morphological analysis indicated that residual surface austenite dissolves progressively with increased current density, exposing the underlying martensitic phase. Post-dissolution EIS analysis revealed that Fe and Ni facilitate secondary passivation, whereas Mo significantly enhances passivation film density. A mechanistic dissolution model is proposed to elucidate the progressive dissolution behavior of PH13-8Mo.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"981 ","pages":"Article 119004"},"PeriodicalIF":4.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heteroatoms-doped porous carbon microspheres derived from cyclotriphosphazene based materials for high performance supercapacitors

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-10 DOI: 10.1016/j.jelechem.2025.119006

Muhammad Waqar Hameed , Abdul Majid Khan , Zahid Ali , Sahrish Majeed , Yasir Abbas , Wei Liu , Guang-Xin Chen , Teng Zhang , Zhanpeng Wu

{"title":"Heteroatoms-doped porous carbon microspheres derived from cyclotriphosphazene based materials for high performance supercapacitors","authors":"Muhammad Waqar Hameed , Abdul Majid Khan , Zahid Ali , Sahrish Majeed , Yasir Abbas , Wei Liu , Guang-Xin Chen , Teng Zhang , Zhanpeng Wu","doi":"10.1016/j.jelechem.2025.119006","DOIUrl":"10.1016/j.jelechem.2025.119006","url":null,"abstract":"<div><div>Poly-phosphazenes have emerged as a significant category of organic and inorganic composite materials, that can produce efficient co-doped carbons materials for supercapacitors electrode. In this study, the nitrogen and phosphorus rich cyclotriphosphazene-<em>co</em>-1,5-naphthalene diamine microspheres (CTPND-MS) with tailored properties were synthesized by carbonization of carbon precursor. Micro and mesoporous mixed carbon microspheres (CMS) with high specific surface areas were obtained by varying the heating rates during carbonization: 2 °C min<sup>−1</sup> (CTPND-MS2), 5 °C min<sup>−1</sup> (CTPND-MS5) and 10 °C min<sup>−1</sup> (CTPND-MS10). Among these, CTPND-MS2 demonstrated the highest specific surface area of 749.12 m<sup>2</sup>/g, with approximately 4.64–5.19 % heteroatom content. This high specific surface area and intrinsically N, P dual doped activated carbon microspheres exhibited a specific gravimetric capacitance of 232.0 F g<sup>−1</sup> at current density of 0.1 A/g in a 1 M H<sub>2</sub>SO<sub>4</sub> electrolyte in symmetric dual electrode capacitor. CTPND-MS2 demonstrated 98 % cycling stability after 10,000th galvanostatic charge–discharge (GCD) cycles at current density of 5 A/g. Additionally, co-doped microspheres achieved energy density of 8.06 Wh kg<sup>−1</sup>, at a power density of 24.99 Wh kg<sup>−1</sup>, at 0.1 A/g. The results establish that phosphazene based materials exhibits an excellent potential for the development of high-performance supercapacitors electrode materials.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"981 ","pages":"Article 119006"},"PeriodicalIF":4.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143396020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of single-atom palladium on the anti-toxicity of electrocatalytic reduction removal of nitrate-nitrogen

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-09 DOI: 10.1016/j.jelechem.2025.119003

Wenqian Li , Huiling Jiang , Jing Liang , Zongqiang Zhu , Yinming Fan

{"title":"Effect of single-atom palladium on the anti-toxicity of electrocatalytic reduction removal of nitrate-nitrogen","authors":"Wenqian Li , Huiling Jiang , Jing Liang , Zongqiang Zhu , Yinming Fan","doi":"10.1016/j.jelechem.2025.119003","DOIUrl":"10.1016/j.jelechem.2025.119003","url":null,"abstract":"<div><div>The enhancement of palladium-based catalysts’ resistance to sulfide toxicity was pursued through the synthesis of six catalysts, namely PdCu MOF<sub>1000</sub>, Pd MOF<sub>1000</sub>, Cu MOF<sub>1000</sub>, PdCu MOF<sub>500</sub>, Pd MOF<sub>500</sub>, and Cu MOF<sub>500</sub>, employing a hydrothermal method. The study delved into the catalytic reduction capabilities of these six catalysts with respect to nitrate (NO<sub>3</sub>-N), alongside exploring the impact of sodium sulfite on the catalytic activities of PdCu MOF<sub>1000</sub>, Pd MOF<sub>1000</sub>, and Cu MOF<sub>1000</sub>. Notably, at a NO<sub>3</sub>-N concentration of 50 mg/L, significant removal efficacy was observed for PdCu MOF<sub>1000</sub>, Pd MOF<sub>1000</sub>, and Cu MOF<sub>1000</sub>, with PdCu MOF<sub>1000</sub> exhibiting a high nitrate removal rate of 97.8 %. Upon the addition of 200 μM sodium sulfite to the system, the removal efficiency of PdCu MOF<sub>1000</sub> was still high at 93.3 %, while a reduction in the removal rate of NO<sub>3</sub>-N by Pd MOF<sub>1000</sub> was observed. Quenching experiments confirmed the presence of hydrogen radicals (H*) in the reaction system, thereby facilitating the indirect-electrocatalytic reduction of nitrate. This observation suggests that catalysts containing Pd single atoms show promise in enhancing their resilience to sulfide toxicity.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"983 ","pages":"Article 119003"},"PeriodicalIF":4.1,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reduction of uranium (VI) in water with additive manufactured electrode

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-09 DOI: 10.1016/j.jelechem.2025.119005

Florent Belnou , Michel L. Schlegel , Thomas Proslier , Julie Mayounove , Hicham Maskrot

{"title":"Reduction of uranium (VI) in water with additive manufactured electrode","authors":"Florent Belnou , Michel L. Schlegel , Thomas Proslier , Julie Mayounove , Hicham Maskrot","doi":"10.1016/j.jelechem.2025.119005","DOIUrl":"10.1016/j.jelechem.2025.119005","url":null,"abstract":"<div><div>Nuclear energy has a promising future, but conventional uranium resources are expected to be depleted within a century. Electrochemical extraction could overcome this roadblock by quantitatively recovering uranium dissolved in natural waters using high surface-area electrodes. In this paper, 3D-architected electrodes were manufactured and studied in an electrochemical cell for element extraction. First, untreated flat electrodes made by Laser Powder Bed Fusion (LPBF) and studied by Cyclic Voltammetry (CV) with a custom electrochemical flow cell in a solution of 1 mM Fe(III)(CN)<sub>6</sub><sup>3−</sup>, 0.1 M KCl have exhibited a shift in redox waves because of an oxidized surface. After electro-etching of the electrode surface with oxalic acid, CV exhibited wave positions closer to literature values with higher amplitudes. However, with a solution of 10<sup>−3</sup> M uranium, 0.1 M NaCl with a pH of 2.3, no electrochemical signals were detected. In contrast, uranium electrochemically reacted with, and was quantitatively retained by an electrode coated with 10 nm of TiO<sub>2</sub> by Atomic Layer Deposition (ALD), and the electrode surface was able to retain uranium by chronoamperometry (CA) (about 0.5 mg for a surface of 3.0 cm<sup>2</sup>). To increase the reacting surface, 3D-architected electrodes were manufactured, electro-etched and TiO<sub>2</sub>-coated. These electrodes showed a tenfold increase in uranium retention (up to 5.7 mg for a surface of 111.1 cm<sup>2</sup>) that could be partially re-dissolved in a new solution with a yield of 70 %. This work shows the interest of both surface functionalization and architected electrodes for elemental retention.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"981 ","pages":"Article 119005"},"PeriodicalIF":4.1,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143396000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study of thermodynamic and kinetic behaviours of tin anode and its variation with state of charge, state of health and operating current rates of the battery

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-08 DOI: 10.1016/j.jelechem.2025.119001

Arghyadeep Sau, Karabi Das, Siddhartha Das

{"title":"Study of thermodynamic and kinetic behaviours of tin anode and its variation with state of charge, state of health and operating current rates of the battery","authors":"Arghyadeep Sau, Karabi Das, Siddhartha Das","doi":"10.1016/j.jelechem.2025.119001","DOIUrl":"10.1016/j.jelechem.2025.119001","url":null,"abstract":"<div><div>Rechargeable lithium ion battery is strengthening its hold day by day on market of large range of products requiring different power usages together with other electrochemical properties. Open circuit potential (OCP), which is strongly related to thermodynamics, is one of the parameters which dictates the state of health of the battery. Apart from this, the diffusion coefficient of Li<sup>+</sup> ions in the electrode material reveals a good picture of kinetics during charge–discharge process. Moreover, ohmic potential drop, electrode overpotential and ohmic resistance associated with various internal resistances, are crucial parameters, which need to be taken care of during the battery operation. Tin (Sn) has the potential to be used as an anode in lithium ion batteries (LIBs) due its high enough theoretical capacity (992mAh g<sup>−1</sup>) and a suitable operating voltage. In this work, we have applied galvanostatic intermittent titration technique (GITT) to study the variations of diffusivity, thermodynamic factor, OCP, ohmic resistance and overpotential for Sn electrode with different states of charge (SoCs) and analysed the effect of ageing on those parameters. The effects of current rates on these parameters have also been analysed to check the performance and limitation of the battery at higher current rates. Few particular lithiated phases like LiSn, Li<sub>7</sub>Sn<sub>3</sub> and Li<sub>7</sub>Sn<sub>2</sub> hold the key for major alteration in the kinetic behaviour in terms of diffusivity. This is, in a way, related to the structural modifications and the extent of volume changes of the different lithiated phases formed during operation of the LIB.</div></div>","PeriodicalId":355,"journal":{"name":"Journal of Electroanalytical Chemistry","volume":"981 ","pages":"Article 119001"},"PeriodicalIF":4.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanism of current amplification based on cyclodextrin-supported supramolecular interaction between catechol and ferrocene

IF 4.1 3区化学

Journal of Electroanalytical Chemistry Pub Date : 2025-02-07 DOI: 10.1016/j.jelechem.2025.118994

Kai Sato , Hiroshi Kimoto , Takeshi Hashimoto

引用次数: 0