Organic getters are often introduced into sealed systems to remove the excessive reactive hydrogen gas. In this work, the formable graphene aerogel hydrogen getters are prepared by integrating the alkyne-containing molecules (e.g., DEB) into the palladium-loaded three-dimensional layered porous graphene aerogel (Pd-GA). The performance of Pd-GA/DEB composite materials in reducing reactive hydrogen gas is examined at pressures of 0.1–1 bar at a temperature of 25 °C, and the hydrogen consumption is measured as a function of time. Results suggest that the hydrogen uptake capability of Pd-GA/DEB getters increases with the loading of Pd particles on the GA and the content of Pd 0 . The highest hydrogen absorption capacity is up to 215.5 cm 3 /g, and the hydrogenation rate of DEB molecules is 89.3%. This study promotes the fundamental understanding of solid-phase catalytic hydrogenation and the applications of 3D layered porous graphene aerogel in hydrogen absorption. • A compressible and strong graphene aerogel (GA) was prepared by a gentle method. • The palladium (Pd) nanoparticles were uniformly supported on the GA. • The formable hydrogen getters were fabricated by integrating Pd-GA with DEB. • The highest hydrogen absorption capacity of Pd-GA/DEB was up to 215.5 cm 3 /g. • The GA can effectively disperse metal particles and accelerate hydrogen diffusion.