Synthesis of SnCdO3/rGO with high electrocatalytic performance for oxygen evolution reaction

IF 2.6 4区材料科学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Journal of Nanoparticle Research Pub Date : 2025-07-01 DOI:10.1007/s11051-025-06369-0

Sumia Rubab, Abhinav Kumar, Sarah A. Alsalhi, Jayanti Makasana, Rekha M. M, G. Senthil Kumar, Mohammed A. Al-Anber, Sankar Narayan Das, Rahul Raj Chaudhary, Ankit D. Oza

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引用次数: 0

Abstract

The production of highly effective and stable electrocatalysts for OER (oxygen evolution reaction) has become challenging for sustainable energy production. The present study uses the simple hydrothermal approach to prepare a noble-metal free electrocatalyst, i.e., SnCdO₃/rGO. The successful production of bimetallic oxide with rGO composite was proved by physiochemical data, illustrating the crystal structure of prepared SnCdO₃ material. Moreover, adding rGO to the SnCdO₃ leads to the dispersion of nanoparticles onto the nanosheets, improving the material’s overall surface area, as proven by BET analysis. The electrochemical testing verifies the transmission of four electron mechanisms by displaying the reduced Tafel value (36 mV dec⁻¹), and a reduced overpotential of 227 mV. These findings suggest that the material is highly active as a catalytic material during OER operation and remains stable for 50 h under the alkaline condition, as evidenced by the chronoamperometry testing. Hence, this novel electrocatalyst can potentially replace noble catalysts and open a new pathway for non-noble metal-based electrocatalysts in future energy conversion applications.

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高电催化析氧性能SnCdO3/rGO的合成

高效稳定的OER（析氧反应）电催化剂的生产已成为可持续能源生产的挑战。本研究采用简单的水热法制备了无贵金属电催化剂SnCdO3/rGO。用还原氧化石墨烯复合材料成功制备了双金属氧化物，说明了制备的SnCdO3材料的晶体结构。此外，BET分析证明，在SnCdO3中加入还原氧化石墨烯可以使纳米颗粒分散到纳米片上，从而提高材料的整体表面积。电化学测试通过显示降低的Tafel值（36 mV dec−1）和降低的过电位227 mV来验证四种电子机制的传输。这些结果表明，该材料作为催化材料在OER操作期间具有高活性，并且在碱性条件下保持稳定50 h，这一点得到了计时电流测试的证明。因此，这种新型电催化剂具有替代贵金属催化剂的潜力，为非贵金属基电催化剂在未来能量转换应用中开辟了新的途径。

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来源期刊

Journal of Nanoparticle Research 工程技术-材料科学：综合

CiteScore

4.40

自引率

4.00%

发文量

198

审稿时长

3.9 months

期刊介绍： The objective of the Journal of Nanoparticle Research is to disseminate knowledge of the physical, chemical and biological phenomena and processes in structures that have at least one lengthscale ranging from molecular to approximately 100 nm (or submicron in some situations), and exhibit improved and novel properties that are a direct result of their small size. Nanoparticle research is a key component of nanoscience, nanoengineering and nanotechnology. The focus of the Journal is on the specific concepts, properties, phenomena, and processes related to particles, tubes, layers, macromolecules, clusters and other finite structures of the nanoscale size range. Synthesis, assembly, transport, reactivity, and stability of such structures are considered. Development of in-situ and ex-situ instrumentation for characterization of nanoparticles and their interfaces should be based on new principles for probing properties and phenomena not well understood at the nanometer scale. Modeling and simulation may include atom-based quantum mechanics; molecular dynamics; single-particle, multi-body and continuum based models; fractals; other methods suitable for modeling particle synthesis, assembling and interaction processes. Realization and application of systems, structures and devices with novel functions obtained via precursor nanoparticles is emphasized. Approaches may include gas-, liquid-, solid-, and vacuum-based processes, size reduction, chemical- and bio-self assembly. Contributions include utilization of nanoparticle systems for enhancing a phenomenon or process and particle assembling into hierarchical structures, as well as formulation and the administration of drugs. Synergistic approaches originating from different disciplines and technologies, and interaction between the research providers and users in this field, are encouraged.