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作者：Charles, Dan
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作者：Jacob, Matthew; Nguyen, Huy; Raj, Rishi; Garcia-Barriocanal, Javier; Hong, Jiyun; Perez-Aguilar, Jorge E.; Hoffman, Adam S.; Mkhoyan, K. Andre; Bare, Simon R.; Neurock, Matthew; Bhan, Aditya
作者单位：University of Minnesota System; University of Minnesota Twin Cities; University of Minnesota System; University of Minnesota Twin Cities; Stanford University; United States Department of Energy (DOE); SLAC National Accelerator Laboratory
摘要：The requirement for C2H2 concentrations below 2 parts per million (ppm) in gas streams for C2H4 polymerization necessitates its semihydrogenation to C2H4. We demonstrate selective chemical looping combustion of C2H2 in C2H4-rich streams by Bi2O3 as an alternative catalytic pathway to reduce C2H2 concentration below 2 ppm. Bi2O3 combusts C2H2 with a first-order rate constant that is 3000 times greater than the rate constant for C2H4 combustion. In successive redox cycles, the lattice O of Bi2O3...
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作者：Leste-Lasserre, Christa
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作者：Mohammed, Salahuddin
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作者：Peng, Mi; Ge, Yuzhen; Gao, Rui; Yang, Jie; Li, Aowen; Xie, Zhiheng; Yu, Qiaolin; Zhang, Jie; Asakura, Hiroyuki; Zhang, Hui; Liu, Zhi; Zhang, Qi; Deng, Jin; Zhou, Jihan; Zhou, Wu; Hutchings, Graham J.; Ma, Ding
作者单位：Peking University; Inner Mongolia University; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Kindai University (Kinki University); Chinese Academy of Sciences; ShanghaiTech University; Cardiff University
摘要：Carbon-neutral hydrogen production is of key importance for the chemical industry of the future. We demonstrate a new thermal catalytic route for the partial reforming of ethanol into hydrogen and acetic acid with near-zero carbon dioxide emissions. This reaction is enabled by a catalyst containing a high density of atomic Pt-1 and Ir-1 species supported on a reactive alpha-molybdenum carbide substrate, achieving a hydrogen production rate of 331.3 millimoles of hydrogen per gram catalyst per ...
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作者：Lahiri, Sutirtha; Reddy, Sushma
作者单位：University of Minnesota System; University of Minnesota Twin Cities; University of Minnesota System; University of Minnesota Twin Cities; University of Minnesota System; University of Minnesota Twin Cities
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作者：Ruta, Francesco L.; Shao, Yinming; Acharya, Swagata; Mu, Anqi; Jo, Na Hyun; Ryu, Sae Hee; Balatsky, Daria; Su, Yifan; Pashov, Dimitar; Kim, Brian S. Y.; Katsnelson, Mikhail I.; Analytis, James G.; Rotenberg, Eli; Millis, Andrew J.; van Schilfgaarde, Mark; Basov, D. N.
作者单位：Columbia University; Columbia University; United States Department of Energy (DOE); National Renewable Energy Laboratory - USA; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; University of Michigan System; University of Michigan; University of California System; University of California Berkeley; University of California System; University of California Berkeley; University of London; King's College London; Columbia University; Radboud University Nijmegen; Simons Foundation; Flatiron Institute; University of Colorado System; University of Colorado Boulder; University of Arizona
摘要：Correlated metals may exhibit unusually high resistivity that increases linearly in temperature, breaking through the Mott-Ioffe-Regel bound, above which coherent quasiparticles are destroyed. The fate of collective charge excitations, or plasmons, in these systems is a subject of debate. Several studies have suggested that plasmons are overdamped, whereas other studies have detected propagating plasmons. In this work, we present direct nano-optical images of low-loss hyperbolic plasmon polari...
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作者：Pendergast, Andrew D.; Boettcher, Shannon W.
作者单位：United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; University of California System; University of California Berkeley; University of California System; University of California Berkeley; University of Oregon
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作者：Thorp, H. Holden; Phelan, Meagan
摘要：Research on science communication has largely focused on teaching scientists how to describe their studies in ways that interest the public while deepening their understanding of scientific exploration. However, there is another, often overlooked side to science communication-how scientists respond when questions arise about the integrity of their research. Often, the tendency has been to stay silent and wait for any controversy to pass or be resolved in professional forums. But in an age of g...
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作者：Minere, Marielle; Wilhelms, Hannah; Kuzmanovic, Bojana; Lundh, Sofia; Fusca, Debora; Classen, Alina; Shtiglitz, Stav; Prilutski, Yael; Talpir, Itay; Tian, Lin; Kieffer, Brigitte; Davis, Jon; Kloppenburg, Peter; Tittgemeyer, Marc; Livneh, Yoav; Fenselau, Henning
作者单位：University of Cologne; Novo Nordisk; University of Cologne; University of Cologne; Weizmann Institute of Science; Max Planck Society; Universites de Strasbourg Etablissements Associes; Universite de Strasbourg; Institut National de la Sante et de la Recherche Medicale (Inserm); Universite de Lorraine; University of Cologne
摘要：High sugar-containing foods are readily consumed, even after meals and beyond fullness sensation (e.g., as desserts). Although reward-driven processing of palatable foods can promote overeating, the neurobiological mechanisms that underlie the selective appetite for sugar in states of satiety remain unclear. Hypothalamic pro-opiomelanocortin (POMC) neurons are principal regulators of satiety because they decrease food intake through excitatory melanocortin neuropeptides. We discovered that POM...
