NdFeO3/rGO 复合材料在增强氧气和氢气进化反应中的协同电化学性能

IF 4.1 3区 化学 Q1 CHEMISTRY, ANALYTICAL
Khalid A. Alrashidi , Iram Manzoor , Abdul Ghafoor Abid , Saikh Mohammad , Muhammad Bilal , Nadir Abbas , Farooq Ahmad , Jafar Hussain Shah
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引用次数: 0

摘要

该研究深入探讨了合成和表征氧化钕、还原氧化石墨烯(rGO)及其复合材料的综合过程。在本研究中,采用超声波方法合成了 NdFeO3/rGO 复合材料。随后,傅立叶变换红外光谱(FT-IR)、X射线衍射(XRD)、扫描电子显微镜(SEM)、电子发射光谱(EDX)和 XPS 等技术一致证实了 NdFeO3/rGO 的合成。对原始材料 NdFeO3、rGO 和 NdFeO3/rGO 进行了氧进化反应(OER)和氢进化反应的研究。研究结果表明,在 1 M KOH 溶液中,NdFeO3/rGO 复合材料的氧进化反应和氢进化反应均优于单个成分。在电流密度为 100、500 和 1000 mAcm-2 时,NdFeO3/rGO 在 OER 反应中的过电位分别为 220、255 和 345 mV,且在 80 小时的长时间测试中稳定性更强。NdFeO3/rGO 杰出的电催化性能与 NdFeO3 和 rGO 之间产生的协同作用有关,这种协同作用促进了电荷转移动力学和催化活性。总之,该研究强调了 NdFeO3/rGO 作为前景广阔且成本低廉的 OER 和 HER 电催化剂的潜力,为其在可持续能源转换领域的应用提供了巨大前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Synergistic electrochemical performance of NdFeO3/rGO composite for enhanced oxygen and hydrogen evolution reactions

Synergistic electrochemical performance of NdFeO3/rGO composite for enhanced oxygen and hydrogen evolution reactions
The research delves into a comprehensive process for synthesizing and characterizing NdFeO3, reduced graphene oxide (rGO), and their composite. In present work, the NdFeO3/rGO composite is synthesized using ultrasonic methods. Subsequently, techniques such as FT-IR, XRD, SEM, EDX, and XPS univocally affirmed the synthesis of NdFeO3/rGO. The pristine materials NdFeO3, rGO, and NdFeO3/rGO were investigated for oxygen evolution reaction (OER) and hydrogen evolution reaction. The findings reveal that the NdFeO3/rGO composite exhibits superior OER and HER compared to individual components in the presence of 1 M KOH solution. The NdFeO3/rGO at current densities of 100, 500 and 1000 mAcm−2 displays lower overpotentials 220, 255 and 345 mV for OER and enhanced stability over extended testing periods for 80 h. Similarly, composite at current densities of 100, 500, and 1000 mAcm−2 to acquire overpotentials of 206, 301, and 466 mV, respectively. The exalted electrocatalytic performance of NdFeO3/rGO is related to the production of synergism between NdFeO3 and rGO, promoting faster charge transfer kinetics and catalytic activity. Overall, the study underscores the potential of NdFeO3/rGO as promising and inexpensive electrocatalysts for OER and HER, offering significant promise for applications in sustainable energy conversion.
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来源期刊
CiteScore
7.80
自引率
6.70%
发文量
912
审稿时长
2.4 months
期刊介绍: The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied. Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.
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