Mechanochemical Synthesis of H – Materials: Hydrogen-Rich Perovskite Oxyhydrides with Lattice Strain as an Ammonia Synthesis Catalyst - Fumitaka Takeiri; Norihiro Oshime; Shibghatullah Muhammady; Tasuku Uchimura; Hiroshi Yaguchi; Jun Haruyama; Akihiko Machida; Tetsu Watanuki; Takashi Saito; Kazuhiro Mori; Kenji Ohwada; Masaaki Kitano; et al. (Journal of the American Chemical Society, 2025)