ZnoNova HYDROGEN CATALYSTS
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ELSEVIER 2026 PEER-REVIEWED VALIDATION

Pd/MWCNT Catalyst for Solid-State Hydrogen Storage

Empirically proven kinetics additive for magnesium alloy (AZ31/AZ61) systems. Enables 6.89 wt% reversible capacity at 375 °C with a 26% lower desorption activation energy. Supplied with per-batch CoA.

6.89 wt%
Reversible H₂ Capacity
+58%
Capacity Gain at 325 °C
-26%
Desorption Activation Barrier
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SPECIFICATION & VALIDATION

Empirical Metrics from Peer-Reviewed Studies

Parameter Pure AZ31 Alloy AZ31 + 5 wt% Pd/MWCNT Empirical Gain / Proven Impact
Reversible Capacity (375 °C) 6.15 wt% 6.89 wt% +12% (~99% corrected theoretical limit)
Reversible Capacity (325 °C) 2.20 wt% 3.48 wt% +58% increase at lower operating temp
Desorption Activation Energy 132.7 kJ/mol 98.5 kJ/mol 26% reduction in thermal release barrier
Absorption Kinetics (t90 at 375 °C) 662 seconds 446 seconds 33% faster absorption speed
Desorption Kinetics (t90 at 375 °C) 1,155 seconds 735 seconds 36% faster desorption speed
Cycling Stability Degrades after 5-10 cycles Stable across 20 cycles Verified by XRD, SEM, TEM, and XPS

Interactive System Sizing: Active Material Mass Estimator

Calculate how much active modified magnesium alloy is required for your target hydrogen inventory compared to conventional rare-earth AB5 hydrides.

Required AZ31+Pd/MWCNT Mass: 145 kg
Conventional AB5 Hydride Mass: 700 kg
(System weight saving: ~79%)

Where This Technology Fits

  • Industrial Waste-Heat Sites: Steel, glass, cement, ceramic, and chemical plants with waste heat above 300 °C.
  • Stationary Storage: Long-duration microgrid energy storage where safe low-pressure solid-state tanks replace high-pressure (350–700 bar) cylinders.
  • Thermally Driven Metal Hydride Compressors: Heat-driven hydrogen compression without moving mechanical parts.

Where It Does Not Fit (Honest Scope)

  • Vehicular / Portable Onboard Storage: Not suitable for passenger EVs or drones without high-temperature thermal loops.
  • Ambient Storage: Desorption requires 325–375 °C; does not discharge hydrogen at room temperature.
  • Electrolysis Anode: Nano-platinum serves only the cathode (HER) and does not replace anode iridium.