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Instruments / Technical Area	Publication Details	Published	Actions
B18-Core EXAFS	The rapid electrochemical activation of MoTe2 for the hydrogen evolution reaction Jessica C. Mcglynn , Torben Dankwort , Lorenz Kienle , Nuno A. G. Bandeira , James P. Fraser , Emma K. Gibson , Irene Cascallana-Matias , Katalin Kamarás , Mark D. Symes , Harry N. Miras , Alexey Y. Ganin Nature Communications 10 DOI: 10.1038/s41467-019-12831-0 Diamond Proposal Number(s): [14239] Open Access Show Abstract ▼ Abstract: The electrochemical generation of hydrogen is a key enabling technology for the production of sustainable fuels. Transition metal chalcogenides show considerable promise as catalysts for this reaction, but to date there are very few reports of tellurides in this context, and none of these transition metal telluride catalysts are especially active. Here, we show that the catalytic performance of metallic 1T′-MoTe2 is improved dramatically when the electrode is held at cathodic bias. As a result, the overpotential required to maintain a current density of 10 mA cm−2 decreases from 320 mV to just 178 mV. We show that this rapid and reversible activation process has its origins in adsorption of H onto Te sites on the surface of 1T′-MoTe2. This activation process highlights the importance of subtle changes in the electronic structure of an electrode material and how these can influence the subsequent electrocatalytic activity that is displayed.	Oct 2019
I11-High Resolution Powder Diffraction	Molecular-salt hybrids; integration of ammonia borane into lithium halides Irene Cascallana-Matias , Joachim Breternitz , Annabelle Baker , Hallam Davis , Edmund J. Cussen , Duncan H. Gregory Inorganic Chemistry Frontiers 6, 808 - 812 DOI: 10.1039/C9QI00099B Diamond Proposal Number(s): [13155] Open Access Show Abstract ▼ Abstract: New molecular-salt-like hybrids contain ammonia borane (AB) in co-existence with lithium halides in single lattices. [LiI](NH3BH3) and [LiI](NH3BH3)2 are members of a generic [LiX]m(AB)n (X = I−, BH4−; m, n = integer) materials family which release hydrogen on decomposition and demonstrate Li+-ion conductivity more than two orders of magnitude higher than either LiBH4 or LiI.	Mar 2019

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