MRS Bulletin

Metal hydrides for clean energy applications

Recent advances in metal hydrides for clean energy applications

Ewa C.E. Rönnebroa1 and Eric H. Majzouba2

a1 Pacific Northwest National Laboratory, Energy and Environment Directory; Ewa.Ronnebro@pnnl.gov

a2 University of Missouri–St. Louis, Department of Physics and Astronomy; majzoube@umsl.edu

Abstract

Metal hydrides are a fascinating class of materials that can be utilized for a surprising variety of clean energy applications, including smart solar collectors, smart windows, sensors, thermal energy storage, and batteries, in addition to their traditional application for hydrogen storage. Over the past decade, research on metal hydrides for hydrogen storage increased due to global governmental incentives and an increased focus on hydrogen storage research for polymer electrolyte membrane fuel cell operation. Tremendous progress has been made in so-called complex metal hydrides for hydrogen storage applications with the discovery of many new hydrides containing covalently bound complex anions. Many of these materials have applications beyond hydrogen storage and are being investigated for lithium-ion battery separator and anode materials. In this issue of MRS Bulletin, we present the state of the art of key evolving metal-hydride-based clean energy technologies with an outlook toward future needs.

Key Words:

  • Energy storage;
  • hydrogenation;
  • powder;
  • devices
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