{"title":"Ni纳米点修饰Co3O4-s-rGO对H2O2的传感","authors":"Sedef Kaplan, Rukan Suna Karatekin, Meltem Kahya Düdükçü, Gülşen Avcı","doi":"10.1007/s12678-025-00974-2","DOIUrl":null,"url":null,"abstract":"<div><p>In this paper, Ni@Co<sub>3</sub>O<sub>4</sub>-<i>s</i>-rGO was synthesized and constructed as a non-enzymatic sensor to detect hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). The prepared sample was characterized using SEM–EDX, UV–vis, XRD, and Raman spectroscopy. In 0.1 M phosphate-buffered saline (PBS), the fabricated Ni@Co<sub>3</sub>O<sub>4</sub>-<i>s</i>-rGO amperometric sensor demonstrated a high sensitivity of 160.3 µA·mM⁻<sup>1</sup> towards H<sub>2</sub>O<sub>2</sub> within the linear detection range of 1 to 2000 µM. The detection limit was also determined as 3.6 µM. Furthermore, the Ni@Co<sub>3</sub>O<sub>4</sub>-<i>s</i>-rGO catalyst demonstrated high selectivity towards H<sub>2</sub>O<sub>2</sub>, even in the presence of common interferents. The enhanced electrochemical sensing ability of the catalyst is attributed to the synergy of three factors: the relatively large electrode active area, the high electrical conductivity, and the electron mobility in the presence of ultra-nanosized Ni particles.\n</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 6","pages":"1072 - 1082"},"PeriodicalIF":2.8000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"H2O2 Sensing on Co3O4-s-rGO Modified with Ni Nanodots\",\"authors\":\"Sedef Kaplan, Rukan Suna Karatekin, Meltem Kahya Düdükçü, Gülşen Avcı\",\"doi\":\"10.1007/s12678-025-00974-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this paper, Ni@Co<sub>3</sub>O<sub>4</sub>-<i>s</i>-rGO was synthesized and constructed as a non-enzymatic sensor to detect hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). The prepared sample was characterized using SEM–EDX, UV–vis, XRD, and Raman spectroscopy. In 0.1 M phosphate-buffered saline (PBS), the fabricated Ni@Co<sub>3</sub>O<sub>4</sub>-<i>s</i>-rGO amperometric sensor demonstrated a high sensitivity of 160.3 µA·mM⁻<sup>1</sup> towards H<sub>2</sub>O<sub>2</sub> within the linear detection range of 1 to 2000 µM. The detection limit was also determined as 3.6 µM. Furthermore, the Ni@Co<sub>3</sub>O<sub>4</sub>-<i>s</i>-rGO catalyst demonstrated high selectivity towards H<sub>2</sub>O<sub>2</sub>, even in the presence of common interferents. The enhanced electrochemical sensing ability of the catalyst is attributed to the synergy of three factors: the relatively large electrode active area, the high electrical conductivity, and the electron mobility in the presence of ultra-nanosized Ni particles.\\n</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":535,\"journal\":{\"name\":\"Electrocatalysis\",\"volume\":\"16 6\",\"pages\":\"1072 - 1082\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2025-09-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrocatalysis\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12678-025-00974-2\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrocatalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s12678-025-00974-2","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
H2O2 Sensing on Co3O4-s-rGO Modified with Ni Nanodots
In this paper, Ni@Co3O4-s-rGO was synthesized and constructed as a non-enzymatic sensor to detect hydrogen peroxide (H2O2). The prepared sample was characterized using SEM–EDX, UV–vis, XRD, and Raman spectroscopy. In 0.1 M phosphate-buffered saline (PBS), the fabricated Ni@Co3O4-s-rGO amperometric sensor demonstrated a high sensitivity of 160.3 µA·mM⁻1 towards H2O2 within the linear detection range of 1 to 2000 µM. The detection limit was also determined as 3.6 µM. Furthermore, the Ni@Co3O4-s-rGO catalyst demonstrated high selectivity towards H2O2, even in the presence of common interferents. The enhanced electrochemical sensing ability of the catalyst is attributed to the synergy of three factors: the relatively large electrode active area, the high electrical conductivity, and the electron mobility in the presence of ultra-nanosized Ni particles.
期刊介绍：
Electrocatalysis is cross-disciplinary in nature, and attracts the interest of chemists, physicists, biochemists, surface and materials scientists, and engineers. Electrocatalysis provides the unique international forum solely dedicated to the exchange of novel ideas in electrocatalysis for academic, government, and industrial researchers. Quick publication of new results, concepts, and inventions made involving Electrocatalysis stimulates scientific discoveries and breakthroughs, promotes the scientific and engineering concepts that are critical to the development of novel electrochemical technologies.
Electrocatalysis publishes original submissions in the form of letters, research papers, review articles, book reviews, and educational papers. Letters are preliminary reports that communicate new and important findings. Regular research papers are complete reports of new results, and their analysis and discussion. Review articles critically and constructively examine development in areas of electrocatalysis that are of broad interest and importance. Educational papers discuss important concepts whose understanding is vital to advances in theoretical and experimental aspects of electrochemical reactions.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
