Results 21 to 30 of about 112,059 (261)
Coffee waste-derived porous carbon for hydrogen and oxygen evolution reaction
Chemical Physics Impact, 2023 Porous carbon was synthesized from coffee waste for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The coffee waste was carbonized at 600 °C for 2 hrs and activated at 500, 600, and 700 °C, respectively. The activated coffee waste
Keshab Pandey, Hae Kyung Jeong
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Cross-Coupling Hydrogen Evolution Reactions [PDF]
Acta Chimica Sinica, 2020 During the past decade, transition metal-catalyzed dehydrogenative cross-couplings have emerged as an attractive strategy in synthetic chemistry due to its high step- and atom-economy as well as the less functionalized coupling partners. However, such reactions have to always use stoichiometric amount of sacrificial oxidants such as peroxides, high ...
Kui Dong, Qiang Liu, Li-Zhu Wu
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Carbon-based electrocatalysts for hydrogen evolution reaction
Energy Conversion and Management: XIn the pursuit of clean and sustainable hydrogen energy production, water splitting has emerged as a promising method. However, the cost and scarcity of Pt-group metals as effective electrocatalysts hydrogen evolution reaction (HER) poses challenges for ...
Khalid Ahmed +4 more
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Nature Communications, 2019 Hydrogen adsorption/desorption behavior plays a key role in hydrogen evolution reaction catalysis. Here, the authors demonstrate the rational balancing of hydrogen adsorption/desorption by orbital modulation for significantly enhanced hydrogen evolution ...
Feng Li +10 more
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A Perspective on Low-Temperature Water Electrolysis – Challenges in Alkaline and Acidic Technology
International Journal of Electrochemical Science, 2018 Water electrolysis is considered as an important technology for an increased renewable energy penetration. This perspective on low-temperature water electrolysis joins the dots between the interdisciplinary fields of fundamental science describing ...
Maximilian Schalenbach +4 more
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Minimal‐power control of hydrogen evolution reactions
Optimal Control Applications and Methods, 2009 AbstractAn integral approach to solve finite‐horizon optimal control problems posed by set‐point changes in electrochemical hydrogen reactions is developed. The methodology extends to nonlinear problems with regular, convex Hamiltonians that cannot be explicitly minimized, i.e.
Costanza, Vicente +1 more
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Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
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Mechanisms of hydrogen evolution on chromium [PDF]
Mining and Metallurgy Engineering Bor, 2015 In this work, the mechanisms of hydrogen evolution on the metal chromium in a solution of 0.1 M Na2SO4 + H2SO4, pH 1 to pH 7 were analysed. In the pH < 3 range, hydrogen is evolved according to three different mechanisms, depending on the experimental ...
Jegdić Bore +3 more
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Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
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Study on Hydrogen Evolution Reaction at a Graphite Electrode in the All-Vanadium Redox Flow Battery
International Journal of Electrochemical Science, 2012 The hydrogen evolution reaction in the negative half-cell of a vanadium redox battery is studied at a graphite electrode. Hydrogen evolution behavior is included by potentiostatic method.
Fuyu Chen +3 more
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