Hydrothermal Synthesis of SmCoO3/rGO Composite as an Excellent Electrocatalyst for Oxygen Evolution Reaction

IF 4.9 3区化学 Q2 POLYMER SCIENCE

Journal of Inorganic and Organometallic Polymers and Materials Pub Date : 2025-03-15 DOI:10.1007/s10904-024-03525-2

Taghrid S. Alomar, Najla AlMasoud, Muhammad Abdullah, Tehreem Zahra, Amal A. Al-wallan, Hafiz Muhammad Tahir, Zeinhom M. El-Bahy

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引用次数: 0

Abstract

Water-splitting research utilizing electrocatalysts that demonstrate outstanding electrochemical performance and environmental compatibility can lead to development of a substantial hydrogen energy source. In this research, an SmCoO₃/rGO composite has been fabricated by facile hydrothermal approach and examined employing physical and electrochemical tests for electrocatalytic water splitting via OER. The methodologies, like SEM, BET and XRD test, were applied to characterize produced SmCoO₃/rGO. The composite demonstrates remarkable characteristics such as long-lasting stability of up to 35 h, minimal onset potential, significant ECSA of 287.5 cm², remarkably small value of Overpotential (209 mV), smaller resistance of 0.91 Ω and relatively moderate Tafel value (36 mV/dec) at 10 mA/cm² in 1.0 M KOH media. An electrocatalytic assessment reveals that combination of SmCoO₃ nanomaterials and rGO has synergistic effect, leading to reduction in overpotential value. The remarkable electrochemical properties of above-designed composite make it an extremely suitable electrocatalyst for OER and various energy conversion applications.

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水热合成SmCoO3/rGO复合材料作为析氧反应的优良电催化剂

利用具有优异电化学性能和环境相容性的电催化剂进行水分解研究，可以开发出大量的氢能源。本研究采用水热法制备了SmCoO3/rGO复合材料，并通过OER对其电催化裂解水进行了物理和电化学测试。采用SEM、BET、XRD等方法对制备的SmCoO3/rGO进行表征。该复合材料具有长达35小时的持久稳定性、最小的起电位、显著的ECSA （287.5 cm2）、显著的过电位值（209 mV）、较小的电阻0.91 Ω和相对适中的Tafel值（36 mV/dec），在1.0 M KOH介质中为10 mA/cm2。电催化评价表明，SmCoO3纳米材料与还原氧化石墨烯的结合具有协同效应，导致过电位值降低。上述复合材料的优异电化学性能使其成为OER和各种能量转换应用的非常合适的电催化剂。

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来源期刊

Journal of Inorganic and Organometallic Polymers and Materials 化学-高分子科学

CiteScore

8.30

自引率

7.50%

发文量

335

审稿时长

1.8 months

期刊介绍： Journal of Inorganic and Organometallic Polymers and Materials [JIOP or JIOPM] is a comprehensive resource for reports on the latest theoretical and experimental research. This bimonthly journal encompasses a broad range of synthetic and natural substances which contain main group, transition, and inner transition elements. The publication includes fully peer-reviewed original papers and shorter communications, as well as topical review papers that address the synthesis, characterization, evaluation, and phenomena of inorganic and organometallic polymers, materials, and supramolecular systems.