Next Article in Journal
Constructing Abundant Cu–ZnO Interfaces via an MOF-on-MOF Precursor for Efficient CO2 Hydrogenation to Methanol
Previous Article in Journal
CeO2-Based and Containing Catalysts for CO2 Methanation: A Short Review
Previous Article in Special Issue
Direct Vapour–Solid Synthesis of Intermetallic Pt-Zn and Pt-Te Nanoparticles on Carbon: Enhanced Oxygen Reduction Through Te and Zn Incorporation
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Catalysts
Volume 16
Issue 7
10.3390/catal16070591
catalysts-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Tuning In Situ Growth of CuO-TiO2/Ti Heterostructure Catalyst for Acceleration of Electrocatalytic Hydrogen Evolution Reaction

by
Surove Rani Saha
1,
Nure Alam Siddique
1,
Mostafizur Rahaman
2,
Merajuddin Khan
2,
Nayan Ranjan Singha
3,
Afzal Khan
4,
Mohammad Imran Hossain
1 and
Mohammad A. Hasnat
1,*
1
Electrochemistry & Catalysis Research Laboratory (ECRL), Department of Chemistry, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
2
Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
3
Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post-Graduate), Kolkata 700106, West Bengal, India
4
State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang Provincial Key Laboratory for Atomic-Level Manufacturing, School of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China
*
Author to whom correspondence should be addressed.
Catalysts 2026, 16(7), 591; https://doi.org/10.3390/catal16070591
Submission received: 22 May 2026 / Revised: 18 June 2026 / Accepted: 25 June 2026 / Published: 28 June 2026
(This article belongs to the Special Issue Advances in Electrocatalytic Materials for Hydrogen Energy Technologies)
Browse Figure
Versions Notes

Abstract

Due to the scarcity and high cost of precious metals, development of a noble metal-free, low-cost catalyst for hydrogen generation via water splitting is crucial. To develop an efficient HER catalyst, Ti, the ninth most abundant metal in Earth’s crust, was engineered systematically. The pristine transition metal titanium cannot drive an electrocatalytic hydrogen evolution reaction (HER) with an efficient rate in an acidic medium (0.5 M H2SO4). However, in situ growth of TiO2 film on Ti surface achieves HER activity, showing an overpotential for 10 mAcm−2 at 671.4 mV with a Tafel slope of 163.69 mV dec−1. The electrocatalytic performance was further boosted by immobilizing CuO particles onto the as-developed TiO2/Ti film, which shows 10 mA cm−2 overpotential at 543.7 mV with a Tafel slope of 101.09 mV dec−1. The CuO–TiO2/Ti heterostructured electrode exhibited remarkable long-term stability, with the current density increasing by 36% over 25 h of continuous operation, suggesting gradual electrochemical activation while maintaining robust catalytic performance. In this research, detailed structural, surface, and electrochemical investigations, including SEM–EDX, EIS, OCP, and XPS analyses, verified the optimized formation of the TiO2 layer and CuO incorporation, underscoring the positive impact of heterointerface engineering on HER enhancement.
Keywords: hydrogen evolution; titanium; electrocatalysis; Tafel slope; turnover frequency hydrogen evolution; titanium; electrocatalysis; Tafel slope; turnover frequency
Graphical Abstract

Share and Cite

MDPI and ACS Style

Saha, S.R.; Siddique, N.A.; Rahaman, M.; Khan, M.; Singha, N.R.; Khan, A.; Hossain, M.I.; Hasnat, M.A. Tuning In Situ Growth of CuO-TiO2/Ti Heterostructure Catalyst for Acceleration of Electrocatalytic Hydrogen Evolution Reaction. Catalysts 2026, 16, 591. https://doi.org/10.3390/catal16070591

AMA Style

Saha SR, Siddique NA, Rahaman M, Khan M, Singha NR, Khan A, Hossain MI, Hasnat MA. Tuning In Situ Growth of CuO-TiO2/Ti Heterostructure Catalyst for Acceleration of Electrocatalytic Hydrogen Evolution Reaction. Catalysts. 2026; 16(7):591. https://doi.org/10.3390/catal16070591

Chicago/Turabian Style

Saha, Surove Rani, Nure Alam Siddique, Mostafizur Rahaman, Merajuddin Khan, Nayan Ranjan Singha, Afzal Khan, Mohammad Imran Hossain, and Mohammad A. Hasnat. 2026. "Tuning In Situ Growth of CuO-TiO2/Ti Heterostructure Catalyst for Acceleration of Electrocatalytic Hydrogen Evolution Reaction" Catalysts 16, no. 7: 591. https://doi.org/10.3390/catal16070591

APA Style

Saha, S. R., Siddique, N. A., Rahaman, M., Khan, M., Singha, N. R., Khan, A., Hossain, M. I., & Hasnat, M. A. (2026). Tuning In Situ Growth of CuO-TiO2/Ti Heterostructure Catalyst for Acceleration of Electrocatalytic Hydrogen Evolution Reaction. Catalysts, 16(7), 591. https://doi.org/10.3390/catal16070591

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop