Institution
King Abdullah University of Science and Technology
Education•Jeddah, Saudi Arabia•
About: King Abdullah University of Science and Technology is a education organization based out in Jeddah, Saudi Arabia. It is known for research contribution in the topics: Catalysis & Membrane. The organization has 6221 authors who have published 22019 publications receiving 625706 citations. The organization is also known as: KAUST.
Topics: Catalysis, Membrane, Computer science, Fading, Population
Papers published on a yearly basis
Papers
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TL;DR: Topographic steric maps are introduced that provide a three-dimensional image of the catalytic pocket—the region of the catalyst where the substrate binds and reacts—enabling it to be visualized and also reshaped by changing various parameters.
Abstract: The engineering of catalysts with desirable properties can be accelerated by computer-aided design. To achieve this aim, features of molecular catalysts can be condensed into numerical descriptors that can then be used to correlate reactivity and structure. Based on such descriptors, we have introduced topographic steric maps that provide a three-dimensional image of the catalytic pocket-the region of the catalyst where the substrate binds and reacts-enabling it to be visualized and also reshaped by changing various parameters. These topographic steric maps, especially when used in conjunction with density functional theory calculations, enable catalyst structural modifications to be explored quickly, making the online design of new catalysts accessible to the wide chemical community. In this Perspective, we discuss the application of topographic steric maps either to rationalize the behaviour of known catalysts-from synthetic molecular species to metalloenzymes-or to design improved catalysts.
548 citations
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TL;DR: Because degradation of the as-formed perovskite film is in many ways analogous to its initial formation, the same suite of monitoring techniques reveals the moisture-induced transformation of low band gap methylammonium lead iodide to wide band gap hydrate compounds, raising the question of whether CH3NH3PbI3 and its analogues are thermodynamically stable phases.
Abstract: ConspectusA new front-runner has emerged in the field of next-generation photovoltaics. A unique class of materials, known as organic metal halide perovskites, bridges the gap between low-cost fabrication and exceptional device performance. These compounds can be processed at low temperature (typically in the range 80–150 °C) and readily self-assemble from the solution phase into high-quality semiconductor thin films. The low energetic barrier for crystal formation has mixed consequences. On one hand, it enables inexpensive processing and both optical and electronic tunability. The caveat, however, is that many as-formed lead halide perovskite thin films lack chemical and structural stability, undergoing rapid degradation in the presence of moisture or heat.To date, improvements in perovskite solar cell efficiency have resulted primarily from better control over thin film morphology, manipulation of the stoichiometry and chemistry of lead halide and alkylammonium halide precursors, and the choice of solve...
548 citations
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TL;DR: Modelling and a sensitivity analysis of the acoustic observations from the Malaspina 2010 Circumnavigation Expedition show that the previous estimate of mesopelagic fishes biomass needs to be revised to at least one order of magnitude higher, and there is a close relationship between the open ocean fishes biomass and primary production.
Abstract: With a current estimate of ~1,000 million tons, mesopelagic fishes likely dominate the world total fishes biomass. However, recent acoustic observations show that mesopelagic fishes biomass could be significantly larger than the current estimate. Here we combine modelling and a sensitivity analysis of the acoustic observations from the Malaspina 2010 Circumnavigation Expedition to show that the previous estimate needs to be revised to at least one order of magnitude higher. We show that there is a close relationship between the open ocean fishes biomass and primary production, and that the energy transfer efficiency from phytoplankton to mesopelagic fishes in the open ocean is higher than what is typically assumed. Our results indicate that the role of mesopelagic fishes in oceanic ecosystems and global ocean biogeochemical cycles needs to be revised as they may be respiring ~10% of the primary production in deep waters. Mesopelagic fishes dominate the global fishes biomass, yet there exist major uncertainties regarding their global biomass. Irigoien et al.analyse acoustic data collected during a circumglobal cruise and show that biomass estimates should be raised by an order of magnitude.
545 citations
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TL;DR: In this paper, the authors present a Web application for analyzing the catalytic pocket of metal complexes using topographic steric maps as a general and unbiased descriptor that is suitable for every class of catalysts.
543 citations
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TL;DR: It is demonstrated that a two-step process is an efficient way to dope graphene: create vacancies by high-energy atom/ion bombardment and fill these vacancies with desired dopants.
Abstract: Functionalized graphene has been extensively studied with the aim of tailoring properties for gas sensors, superconductors, supercapacitors, nanoelectronics, and spintronics. A bottleneck is the capability to control the carrier type and density by doping. We demonstrate that a two-step process is an efficient way to dope graphene: create vacancies by high-energy atom/ion bombardment and fill these vacancies with desired dopants. Different elements (Pt, Co, and In) have been successfully doped in the single-atom form. The high binding energy of the metal-vacancy complex ensures its stability and is consistent with in situ observation by an aberration-corrected and monochromated transmission electron microscope.
542 citations
Authors
Showing all 6430 results
Name | H-index | Papers | Citations |
---|---|---|---|
Jian-Kang Zhu | 161 | 550 | 105551 |
Jean M. J. Fréchet | 154 | 726 | 90295 |
Kevin Murphy | 146 | 728 | 120475 |
Jean-Luc Brédas | 134 | 1026 | 85803 |
Carlos M. Duarte | 132 | 1173 | 86672 |
Kazunari Domen | 130 | 908 | 77964 |
Jian Zhou | 128 | 3007 | 91402 |
Tai-Shung Chung | 119 | 879 | 54067 |
Donal D. C. Bradley | 115 | 652 | 65837 |
Lain-Jong Li | 113 | 627 | 58035 |
Hong Wang | 110 | 1633 | 51811 |
Peng Wang | 108 | 1672 | 54529 |
Juan Bisquert | 107 | 450 | 46267 |
Jian Zhang | 107 | 3064 | 69715 |
Karl Leo | 104 | 832 | 42575 |