Work

Ruthenium‐Decorated Halloysite Nanoclay for Efficient Hydrogen Generation from Sodium Borohydride Hydrolysis: Structural and Kinetic Insights

Year: 2026

Type: article

Abstract: ABSTRACT Developing efficient and reusable catalysts for hydrogen production from chemical hydrides is essential for sustainable energy technologies. Herein, ruthenium (Ru)‐decorated halloysite nanoclay (Ru@HNC, ∼2 wt.% Ru) was synthesized via a simple wet precipitation–reduction method, preserving the natural nanotubular structure while enabling high Ru dispersion. Comprehensive characterization (XRD, TEM/EDX, XPS, and ICP‐OES) confirmed stable Ru impregnation and favorable metal–support interactions. The catalyst was evaluated for hydrogen generation from NaBH 4 hydrolysis. Kinetic studies revealed an apparent activation energy of 55.47 kJ mol −1 , with first‐order dependence on catalyst concentration. Under mild conditions, Ru@HNC exhibited a maximum TOF of 17,682 h −1 , demonstrating its high intrinsic catalytic activity. The catalyst maintained stable hydrogen production over 30 consecutive cycles, indicating good durability under repeated operation. Notably, only 0.4 mg of Ru generated a cumulative 120 mmol of H 2 , highlighting outstanding noble‐metal utilization efficiency. These findings demonstrate the potential of Ru@HNC as an efficient and reusable catalyst for NaBH 4 ‐based hydrogen production.

Source: ChemistrySelect

DOI: 10.1002/slct.74698

Authors: Emine Kayhan, Seren Kola, Büşra Ersoy, Merve Akbayrak

Institutions: Usak University, Necmettin Erbakan University

Language: English

Topic: Hydrogen Storage and Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze

Funder: Necmettin Erbakan Üniversitesi