1：Experimental Design and Method Selection:

The study involved the synthesis of a hybrid material composed of 5,10,15,20-tetra(4-tolyl)porphyrinato manganese (III) chloride (MnTTP) embedded in a silica matrix using the sol-gel method. The laser ablation deposition technique (PLD) was used to immobilize the manganese porphyrin–silica hybrid on the surface of carbon electrodes.

2：Sample Selection and Data Sources:

The hybrid material was milled and compacted into a tablet shape for PLD. The electrochemical behavior was studied using cyclic voltammetry and square wave voltammetry.

3：List of Experimental Equipment and Materials:

Equipment included a pulsed laser deposition Nano-PLD 1000 system, UV-Vis spectrometer, AFM, and a VoltaLab PGZ 402 Universal Potentiostat. Materials included N,N-dimethylformamide, potassium hexacyanoferrate (III), potassium chloride, sodium nitrite, potassium nitrate, sodium dihydrogen phosphate, disodium hydrogen phosphate, ascorbic acid, and sodium diclofenac.

4：Experimental Procedures and Operational Workflow:

The hybrid material was deposited on glassy carbon and graphite electrodes using PLD. The films were characterized by UV-Vis, AFM, and electrochemical methods.

5：Data Analysis Methods:

The electrochemical data was analyzed to determine the electrocatalytic performance towards ascorbic acid oxidation.