The Experts below are selected from a list of 294 Experts worldwide ranked by ideXlab platform
Ian Manners - One of the best experts on this subject based on the ideXlab platform.
-
B-N compounds for chemical Hydrogen storage
Chemical Society Reviews, 2009Co-Authors: Charles W. Hamilton, R. Tom Baker, Anne Staubitz, Ian MannersAbstract:Hydrogen storage for transportation applications requires high volumetric and gravimetric storage capacity. B-N compounds are well suited as storage materials due to their light weight and propensity for bearing multiple protic (N-H) and hydridic (B-H) Hydrogens. This critical review briefly covers the various methods of Hydrogen storage, and then concentrates on chemical Hydrogen storage using B-N compounds. The simplest B-N compound, ammonia borane (H3NBH3), which has a potential 19.6 wt% Hydrogen storage capacity, will be emphasised (127 references).
-
B–N compounds for chemical Hydrogen storage
Chemical Society Reviews, 2008Co-Authors: Charles W. Hamilton, R. Tom Baker, Anne Staubitz, Ian MannersAbstract:Hydrogen storage for transportation applications requires high volumetric and gravimetric storage capacity. B–N compounds are well suited as storage materials due to their light weight and propensity for bearing multiple protic (N–H) and hydridic (B–H) Hydrogens. This critical review briefly covers the various methods of Hydrogen storage, and then concentrates on chemical Hydrogen storage using B–N compounds. The simplest B–N compound, ammonia borane (H3NBH3), which has a potential 19.6 wt% Hydrogen storage capacity, will be emphasised (127 references).
Charles W. Hamilton - One of the best experts on this subject based on the ideXlab platform.
-
B-N compounds for chemical Hydrogen storage
Chemical Society Reviews, 2009Co-Authors: Charles W. Hamilton, R. Tom Baker, Anne Staubitz, Ian MannersAbstract:Hydrogen storage for transportation applications requires high volumetric and gravimetric storage capacity. B-N compounds are well suited as storage materials due to their light weight and propensity for bearing multiple protic (N-H) and hydridic (B-H) Hydrogens. This critical review briefly covers the various methods of Hydrogen storage, and then concentrates on chemical Hydrogen storage using B-N compounds. The simplest B-N compound, ammonia borane (H3NBH3), which has a potential 19.6 wt% Hydrogen storage capacity, will be emphasised (127 references).
-
B–N compounds for chemical Hydrogen storage
Chemical Society Reviews, 2008Co-Authors: Charles W. Hamilton, R. Tom Baker, Anne Staubitz, Ian MannersAbstract:Hydrogen storage for transportation applications requires high volumetric and gravimetric storage capacity. B–N compounds are well suited as storage materials due to their light weight and propensity for bearing multiple protic (N–H) and hydridic (B–H) Hydrogens. This critical review briefly covers the various methods of Hydrogen storage, and then concentrates on chemical Hydrogen storage using B–N compounds. The simplest B–N compound, ammonia borane (H3NBH3), which has a potential 19.6 wt% Hydrogen storage capacity, will be emphasised (127 references).
Pijolat Michèle - One of the best experts on this subject based on the ideXlab platform.
-
Kinetics of CeO2, surface area reduction in a mixture of HCl, H2O, and O2
Journal of the American Ceramic Society, 2015Co-Authors: Gruy Frédéric, Pijolat MichèleAbstract:Surface area reduction of a cerium dioxide powder is studied at 900 K in a HCl, H2O, and O2 atmosphere. The rate of surface area decrease determined as a function of the surface chloride content and of the partial pressure of Hydrogen chloride. It is shown that particle growth occurs due to the surface diffusion of cerium and hydroxyl ions, which results from hygrogen chloride adsorption. Adsorbed chloride ions react to give gaseous chlorine. The rate-determining step of the process of initial coarsening is Hydrogen chloride fixation at the surface of ceriumdioxide particles.
Michael L. Klein - One of the best experts on this subject based on the ideXlab platform.
-
Vapor-liquid interfacial properties of mutually saturated water/1-butanol solutions.
Journal of the American Chemical Society, 2002Co-Authors: Bin Chen, J. Ilja Siepmann, Michael L. KleinAbstract:Adsorption and ordering at the vapor−liquid interfaces of mutually saturated water/1-butanol solutions at a temperature of 298.15 K were investigated using configurational-bias Monte Carlo simulations in the Gibbs ensemble and compared to the surface properties of neat water and 1-butanol liquids. A dense 1-butanol monolayer is observed at the surface of the water-rich phase, which results in a substantial decrease of its surface tension. In contrast, there is no enrichment of water molecules at the surface of the butanol-rich phase, and its surface tension is not significantly changed. Analysis of the interfacial structures reveals that these systems exhibit orientational ordering and composition heterogeneity. Analysis of the Hydrogen-bonding distributions suggests that the formation of the 1-butanol monolayer is driven by an excellent match between water and the primary alcohol; that is, additional Hydrogen bonds are formed between the excess free Hydrogens of surface water and the excess Hydrogen-bond...
Yongjun Zhang - One of the best experts on this subject based on the ideXlab platform.
-
swelling induced surface instability of a Hydrogen bonded lbl film and its self healing
Polymer, 2014Co-Authors: Chong Li, Ying Guan, Yongjun ZhangAbstract:Thin hydrogel films attached to a rigid substrate can only swell along the direction perpendicular to the substrate, which generates compressive stress within the gel. When the stress is sufficiently large, the free surface of the gel will locally buckle and fold against itself to form various wrinkling patterns. Here we show that Hydrogen-bonded layer-by-layer (LBL) films of poly(vinyl pyrrolidone) (PVPON) and poly(acrylic acid) (PAA) also swell in ethanol/water mixtures. Like ordinary hydrogel films attached to a substrate, the LBL films also undergo mechanical instability when their swelling degree is large enough. By adjusting the composition and pH of the ethanol/water mixture, the swelling degree of the film can be adjusted, which further decides whether the mechanical instability occurs or not. Like ordinary hydrogel films, the surface wrinkling of the PVPON/PAA films occurs via a nucleation-growth process. Unlike ordinary hydrogels, the critical swelling degree for the onset of wrinkling for PVPON/PAA films increases with increasing film thickness. More importantly, the wrinkling patterns can be healed automatically, because the transient network of PVPON/PAA films allows for the relief of compressive stress via its rearrangement. The phenomenon observed here may provide a possible way to erase the undesired wrinkling patterns on constrained hydrogel films.
