Role of Van der Waals correction on the catalytic performance of 1T-TiS₂ electrocatalyst
Keywords:
Vander Waals interactions, Catalytic performance, Density functional theory, Adsorbed hydrogenAbstract
In this paper, the role of Van der Waals (vdW) correction on the catalytic performance of 1T- TiS2 material was investigated within the framework of density functional theory (DFT) and dispersion-corrected density functional theory (DFT-D3). The exchange-correlation functional was approximated using generalized gradient approximation (GGA) as parameterized by Perdew-Burke-Ernzerhof (PBE). Based on our results, the calculated lattice parameters were a =3.33 Å and a =3.32 Å upon calculations without and with inclusion of vdW correction, respectively, which indicated a slight reduction of ∼ 0.3% when vdW correction was included. In both cases, the value of a was in good agreement with previous experimental and theoretical data. However, the distances between the adsorbed hydrogen (H) and the surface of the catalyst were affected by the vdW correction. Our findings also showed that the vdW correction has an impact on the catalytic performance of 1T-TiS2. The Gibbs free energy change for hydrogen adsorption (ΔGH∗) calculated for the most stable adsorption location was ∼ - 0.55 eV and ∼ - 0.53 eV without and with vdW correction, respectively. This revealed that the one calculated with the inclusion of vdW correction is closer to the optimal value. Therefore, this emphasized the need of including a vdW correction in any DFT study that involves catalytic properties of this material and its related members for more accurate and reliable results.
Published
How to Cite
Issue
Section
Copyright (c) 2025 Shamsuddeen Sani Alhassan, Mahmud Abdulsalam, Abdullahi Tanimu, Ibrahim Muhammad Bagudo

This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
Similar Articles
- Hassan Ibrahim, Deborah Abolape Akwu, Reza Sharafdini, On topological indices and QSPR analysis of some drugs used for treating Coronavirus patients , African Scientific Reports: Volume 3, Issue 2, August 2024
- O. E. Ojo, O. A. Oyinloye, A. O. Adejimi, T. Adejumo, Evaluation of an Adaptive Multimedia Streaming in Mobile Cloud Computing for Slow-Speed Networks , African Scientific Reports: Volume 2, Issue 2, August 2023
- A. M. Magomya, U. V. Elisha, Removal of Azo Dye (Acid Red 18) from Aqueous Solution using a Bioadsorbent from Carica Papaya Peels , African Scientific Reports: Volume 2, Issue 2, August 2023
- Taiwo Stephen Fayose, Kayode Ayinde, Olatayo Olusegun Alabi, M Robust Weighted Ridge Estimator in Linear Regression Model , African Scientific Reports: Volume 2, Issue 2, August 2023
- Taiwo Stephen Fayose, Kayode Ayinde, Olatayo Olusegun Alabi, Abimbola Hamidu Bello, Robust weighted ridge regression based on S – estimator , African Scientific Reports: Volume 2, Issue 3, December 2023
- Taiwo J. Adejumo, Kayode Ayinde, Abayomi A. Akomolafe, Olusola S. Makinde, Adegoke S. Ajiboye, Robust-M new two-parameter estimator for linear regression models: Simulations and applications , African Scientific Reports: Volume 2, Issue 3, December 2023
- Abiola T. Owolabi, Kayode Ayinde, Olusegun O. Alabi, A Modified Two Parameter Estimator with Different Forms of Biasing Parameters in the Linear Regression Model , African Scientific Reports: Volume 1, Issue 3, December 2022
- Saheed Adekunle Ganiyu, Oluwaseun Tolutope Olurin, Sulaimon Yinka Makanjuola, Anthony Okeh, Abiodun Oluwatoyin Salawu, Rasaq Akanji Lasisi, Assessing the physical and geotechnical properties of subsoils within an active municipal solid waste dumpsite for secured future urban growth , African Scientific Reports: Volume 3, Issue 2, August 2024
- Opoyemi O. Enoch, Catherine O. Alakofa, A fifth order block methods for solving second-order stiff ordinary differential equations using trigonometric functions and polynomial function as the basis function , African Scientific Reports: Volume 3, Issue 2, August 2024
- E. A. Kamba, E. A. Yerima, Gas-phase Photocatalytic Oxidation of 1-Hexene Using Heterogeneous Semiconductor Materials , African Scientific Reports: Volume 2, Issue 1, April 2023
You may also start an advanced similarity search for this article.