Sumaira Manzoor, Salma Aman, Meznah M. Alanazi, Shaimaa A. M. Abdelmohsen, Rabia Yasmin Khosa, Naseeb Ahmad, Abdul Ghafoor Abid, Mehar Un Nisa, Ruimao Hua, Adeel Hussain Chughtai
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引用次数: 0
摘要
设计成本低、效率高的析氧反应电极材料是实现水裂解的关键。在此,我们首次公开了一种特殊的电催化剂,如碲化锰,它被水热包裹在碳纳米管中(MnTe@CNTs)。对合成催化剂的物理特性进行了结构、形态和织构性质的分析。合成的MnTe@CNTs纳米复合材料具有显著的催化性能,Cdl(双层电容)和ECSA(电化学表面积)值分别为10.23 mF cm−2和256 cm2。由于优异的ECSA,在1.0 M KOH溶液中,当电流密度为10 mA cm−2时,OER的过电位较低,Tafel斜率较小,分别为256 mV和45.1 mV dec−1。此外,MnTe@CNTs纳米结构显示出100 h的耐久性。这些显著的成果为未来的绿色能源应用开辟了新的渠道。
Facile fabrication of MnTe@CNT nanocomposite for high efficiency hydrogen production via renewable energy sources
It is crucial for water splitting to design highly effective electrode materials with cheap cost and superior effectiveness for the OER (oxygen evolution reaction). Herein, we disclose first instance of an extraordinary electrocatalyst like manganese telluride that has been hydrothermally encased in carbon nanotubes (MnTe@CNTs). The physical characteristics of synthesized catalysts are examined for the analysis of structural, morphologic, and the textural properties. The as-synthesized MnTe@CNTs nanocomposite exhibits significant catalytic performance exhibiting the Cdl (double layer capacitance) and ECSA (electrochemical surface area) values of 10.23 mF cm−2 and 256 cm2, respectively. Due to the excellent ECSA, the nanocomposite shows lower overpotential and smaller Tafel slope of 256 mV and 45.1 mV dec−1, respectively, for the OER at 10 mA cm−2 current density in 1.0 M KOH solution. Furthermore, MnTe@CNTs nanostructure demonstrates the exhibits the 100 h-long durability. These remarkable results open new channels for future green energy applications.
期刊介绍:
Applied Nanoscience is a hybrid journal that publishes original articles about state of the art nanoscience and the application of emerging nanotechnologies to areas fundamental to building technologically advanced and sustainable civilization, including areas as diverse as water science, advanced materials, energy, electronics, environmental science and medicine. The journal accepts original and review articles as well as book reviews for publication. All the manuscripts are single-blind peer-reviewed for scientific quality and acceptance.