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Umamaheswari Rajaji,가네시,Shen-Ming Chen,Mani Govindasamy,Sangyoun Kim,Razan A. Alshgari,시모가 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.102 No.-
In the present work, a novel method for the green synthesis of CeAlO3 (CAO) polycrystalline powderthrough deep eutectic solvents (DES) was carried out by hydrothermal method. The carbon nitride(CN) was synthesized directly by fractional thermal polymerisation process. The combination ofCeAlO3 with CN provides an excellent sensing platform for developing highly sensitive and stable electrocatalystfor non-enzymatic glucose (GLU) oxidation. The structural, morphological and electrochemicalanalysis of CeAlO3/CN (CAO/CN) shows the successful synthesis without any impurities. The synergisticeffects of pyridinic-N, pyrrolic-N and graphitic-N are highly influencing and playing a prominent role insensory performances of the prepared CAO/CN nano-electrocatalyst towards GLU sensing. The limit ofdetection (LOD) at CAO/CN modified glassy carbon electrode (CAO/CN/GCE) was calculated to be0.86 nM in the linear concentration range of 0.01–1034.5 mM by amperometric method. The antiinterference,reproducibility, repeatability and stability analysis suggest the promising performance ofthe fabricated electrode towards GLU detection. The real time application of CAO/CN/GCE was evaluatedtowards GLU sensing in human blood, saliva and sweat, a satisfactory result was obtained. Therefore, theCAO/CN/GCE has a great application prospect as a highly efficient catalyst material for highly sensitiveand efficient non-enzymatic glucose sensor.
Siyal Sajid Hussain,Javed Muhammad Sufyan,Ahmad Awais,Sajjad Muhammad,Batool Saima,Khan Abdul Jabbar,Akram Shakeel,Alothman Asma A.,Alshgari Razan A.,Najam Tayyaba 한국물리학회 2021 Current Applied Physics Vol.31 No.-
The development of smart structured cathode materials for supercapacitors (SCs) has sparked tremendous interest. However, the appropriate design to achieve high capacitance and energy density-based cathode materials remains a major problem for energy storage systems. This article describes the effective synthesis of selfsupported 3D micro-flowers composed of ultrathin nanowires array of Co3O4 on Ni foam (NF) using hydrothermal conditions (Co3O4@NF). The mesoporous Co3O4@NF with a high surface area, providing a rich active state for the Faraday redox reaction and increasing the diffusion rate of the electrolyte ions. The optimized Co3O4@NF-16h electrode exhibited supreme electrochemical performance by delivering a high specific capacitance of 1878, (1127) and 1200 (720 C g 1) F g 1 at 1.0 and 20 A g 1, respectively. The Co3O4@NF electrode retained good capacitance stability of 91% over 10000 cycles at 20 A g 1 with excellent rate-performance of 67% at 20 folded high current values. The obtained results for the Co3O4@NF electrode are presented the enhanced pseudocapacitive performance, indicating the substantial potential for high-performance supercapacitor applications.