Materials for hydrogen-based energy storage - past, recent progress and future outlook

Globally, the accelerating use of renewable energy sources, enabled by increased efficiencies and reduced costs, and driven by the need to mitigate the effects of climate change, has significantly increased research in the areas of renewable energy production, storage, distribution and end-use. Central to this discussion is the use of hydrogen, as a clean, efficient energy vector for energy storage. This review, by experts of Task 32, “Hydrogen-based Energy Storage” of the International Energy Agency, Hydrogen TCP, reports on the development over the last 6 years of hydrogen storage materials, methods and techniques, including electrochemical and thermal storage systems. An overview is given on the background to the various methods, the current state of development and the future prospects. The following areas are covered; porous materials, liquid hydrogen carriers, complex hydrides, intermetallic hydrides, electrochemical storage of energy, thermal energy storage, hydrogen energy systems and an outlook is presented for future prospects and research on hydrogen-based energy storage

Riociguat treatment in patients with chronic thromboembolic pulmonary hypertension: Final safety data from the EXPERT registry

Objective: The soluble guanylate cyclase stimulator riociguat is approved for the treatment of adult patients with pulmonary arterial hypertension (PAH) and inoperable or persistent/recurrent chronic thromboembolic pulmonary hypertension (CTEPH) following Phase

Polymorphism in tetra-aryl biphenyl diamine hole transport materials: resolving the conflicting literature on N, N-diphenyl-N, N-bis(3,3-methylphenyl)-[(1,1-biphenyl)]-4,4-diamine by high-resolution powder diffraction

The existence of a second polymorphic form of the hole transport material N,N-diphenyl-N,N-bis(3,3-methylphenyl)-[(1,1-biphenyl)]-4,4-diamine has been confirmed using both Pawley and Rietveld refinement of structural information against high-resolution synchrotron X-ray powder diffraction data

Uniting Electron Crystallography and Powder Diffraction

XIII, 434 p.online resource

Reversible ammonia-based and liquid organic hydrogen carriers for high-density hydrogen storage: Recent progress

Liquid hydrogen carriers are considered to be attractive hydrogen storage options because of their ease of integration into existing chemical transportation infrastructures when compared with liquid or compressed hydrogen. The development of such carriers forms part of the work of the International Energy Agency Task 32: Hydrogen-Based Energy Storage. Here, we report the state-of-the-art for ammonia-based and liquid organic hydrogen carriers, with a particular focus on the challenge of ensuring easily regenerable, high-density hydrogen storage

The percentage of <i>E. coli</i> strains assigned to each phylogenetic group calculated by Jackknife analysis based on HFERP DNA fingerprints data.

<p>The percentage of <i>E. coli</i> strains assigned to each phylogenetic group calculated by Jackknife analysis based on HFERP DNA fingerprints data.</p

The Korean War Veterans Memorial and Problems of Representation

This article examines the design history of the Korean War Veterans Memorial dedicated in Washington DC in 1995. It considers the attempt to achieve demographic inclusiveness by representing figures of every ethnic group in the sculptural depiction of the U.S. troops in Korea. It interprets this commemorative approach as an extension of the principle established in the commemoration of the Vietnam War in the 1980s, in which the norm of multifigure sculptural groups was intended to achieve the goal of demographic inclusiveness. The Korea memorial was also a response to the preference, particularly among right-wing, pro-military veterans, for commemorations consisting of realistic sculpture; the large number of figures (nineteen, making this an extremely large statuary group) allowed each of the four major armed services to be represented, and the inscribed pictorial wall allowed even more figures, representing each military specialist group, to be portrayed. In this way, the Korea memorial answered criticisms levelled at Vietnam War commemorations which generally concentrated on the depiction of foot soldiers. The essay’s argument places the creation of the multi-figure Korean War Veterans Memorial statuary group into the recent history of commemorative sculpture, but also contrasts it with a longer tradition, marked in the period from around 1890 to 1930, in which Washington was the site for other kinds of commemorative sculpture, including portrait statuary, historical works, and allegorical forms. The essay suggests that the shift to a kind of dumb literalism has involved a loss in the language of public sculpture. It advocates a rediscovery and reinvention of the language of symbolism following the extensio ad absurdum of the tendency to demographic and interest-group inclusiveness in the Korean War Veterans Memorial