<strong>2. Experimental methods</strong>
<strong><em>2.1. Setup of reactor</em></strong>
<a>Fig. 1</a> presents a scheme of the homemade system for thermochemical hydride production to induce high temperature and
H<sub>2</sub> pressure in the reactor. The system is composed of inlet gas lines, outlet gas lines, a reactor, furnace, temperature
sensors (located in the reactor inside, reactor outside, and furnace), pressure sensors, a BPR (back pressure regulator), two condensers with cooling
water inlet (CWI) and outlet (CWO), a vacuum pump for removing the remained residual oxygen, and vent lines. In <a>Fig. 1</a>, the reactor
has an internal volume of 100 ml and is constructed of Ni-based alloy (Inconel 600) that has high corrosion
resistance at high temperatures. The upper limit for temperature and H<sub>2</sub> pressure are 700 °C and 70 bar, respectively.
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