English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this paper, we report amorphous-carbon-supported TiB 2  nanoparticles having sizes of 2–4 nm (nano-TiB 2 @C) as highly active catalysts for hydrogen storage in NaAlH 4 . Nano-TiB 2 @C was synthesized by a simple calcination at 550°C with Cp 2 TiCl 2  and MgB 2  (molar ratio of 1:1) as precursors. The addition of 7 wt% nano-TiB 2 @C reduced the onset dehydrogenation temperature of NaAlH 4  by 100 to 75°C. A practically available hydrogen capacity of 5.04 wt% could be desorbed at 140°C within 60 min, and completely hydrogenated at 100°C within 25 min under a hydrogen pressure of 100 bar. Notably, the hydrogen capacity was almost unchanged after 20 cycles, which shows the stable cyclability, considerably higher than those of structures catalyzed by Ti halides or TiO 2 . The stable catalytic function was closely related to the  in-situ -formed Ti–Al alloy, which considerably facilitated the dissociation and recombination of H–H and Al–H bondings.

Amorphous-Carbon-Supported Ultrasmall TiB2 Nanoparticles With High Catalytic Activity for Reversible Hydrogen Storage in NaAlH4