The hydrolysis of sodium borohydride (NaBH₄) is a promising reaction with a possible practical application as a means of generating hydrogen. The efficiency of hydrogen production can be enhanced significantly by use of a catalyst during the reaction. Cobalt borides show significant catalytic activity, but unsupported CoB particles aggregate easily and are difficult to separate from the reaction medium for re-use. The objectives of the present study were to use halloysite (Hly) as a support material to increase the catalytic activity and reusability of a Co metal-based system and to investigate the binary effect of metal loading and reaction parameters on the hydrolysis of NaBH₄. Catalysts were prepared by wet impregnation and chemical reduction. The surface morphology and structural properties of the prepared catalysts were characterized using N₂ adsorption-desorption and the Brunauer-Emmet-Teller (BET) method, field emission scanning electron microscopy (FE-SEM), with energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and inductively coupled plasma mass spectrometry (ICP-MS). Response surface methodology (RSM) was used to optimize metal loading and reaction conditions for the hydrogen-generation rate. Optimum reaction conditions were determined (using Design Expert 7.0 software) as 5.01 wt.% Co loading using a Co-B/Hly-supported catalyst, 0.44 M NaBH₄, 10.66 mg catalyst, and at a reaction temperature of 39.96°C. The maximum hydrogen generation rate was 33,854 mL min⁻¹ g_Co⁻¹ under these conditions.

硼氢化钠（NaBH ₄）的水解是一种有前途的反应，可能作为生产氢气的手段而实际应用。通过在反应过程中使用催化剂，可以显着提高制氢效率。硼化钴显示出显着的催化活性，但未负载的CoB颗粒容易聚集，并且难以从反应介质中分离出来以进行再利用。本研究的目的是使用埃洛石（Hly）作为载体材料，以提高基于Co金属的系统的催化活性和可重复使用性，并研究金属负载和反应参数对NaBH ₄水解的二元作用。。通过湿浸渍和化学还原制备催化剂。使用N ₂吸附-解吸和Brunauer-Emmet-Teller（BET）方法，场发射扫描电子显微镜（FE-SEM）和能量色散X射线光谱法（EDS）表征了制备的催化剂的表面形态和结构性能。），X射线衍射（XRD），X射线光电子能谱（XPS）和电感耦合等离子体质谱（ICP-MS）。使用响应面方法（RSM）来优化金属负载量和反应条件以提高氢生成速率。使用Co-B / Hly负载的催化剂0.44 M NaBH ₄（使用Design Expert 7.0软件）确定最佳反应条件（使用Design Expert 7.0软件）为5.01 wt。％的Co负载量。，10.66 mg催化剂，且反应温度为39.96°C。在这些条件下，最大氢气产生速率为33,854 mL min ^-1 g _Co ^-1。