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Towards High Conductivity in Anion‐Exchange Membranes for Alkaline Fuel Cells
Wiley - Tập 6 Số 8 - Trang 1376-1383 - 2013
Nanwen Li, Michael D. Guiver, Wolfgang H. Binder
AbstractQuaternized poly(2,6‐dimethylphenylene oxide) materials (PPOs) containing clicked 1,2,3‐triazoles were first prepared through CuI‐catalyzed “click chemistry” to improve the anion transport in anion‐exchange membranes (AEMs). Clicked 1,2,3‐triazoles incorporated into AEMs provided more sites to form efficient and continuous hydrogen‐bond...... hiện toàn bộ
Hydrolysis of Ammonia Borane as a Hydrogen Source: Fundamental Issues and Potential Solutions Towards Implementation
Wiley - Tập 4 Số 12 - Trang 1731-1739 - 2011
Udishnu Sanyal, Umit B. Demirci, Balaji R. Jagirdar, Philippe Miele
AbstractIn today’s era of energy crisis and global warming, hydrogen has been projected as a sustainable alternative to depleting CO2‐emitting fossil fuels. However, its deployment as an energy source is impeded by many issues, one of the most important being storage. Chemical hydrogen storage materials, in particular BN compounds such as ammo...... hiện toàn bộ
Flexibilization of Biorefineries: Tuning Lignin Hydrogenation by Hydrogen Partial Pressure
Wiley - Tập 14 Số 1 - Trang 373-378 - 2021
Zhengwen Cao, Yun Xu, Pengbo Lyu, Michael Dierks, Ángel Morales‐García, Wolfgang Schräder, Petr Nachtigall, Ferdi Schüth
AbstractThe present study describes an interesting and practical catalytic system that allows flexible conversion of lignin into aromatic or aliphatic hydrocarbons, depending on the hydrogen partial pressure. A combination of experiment and theory shows that the product distribution between aromatics and aliphatics can be simply tuned by controlling the availabilit...... hiện toàn bộ
Intramolecular Hydroalkoxylation of Non‐Activated CC Bonds Catalysed by Zeolites: An Experimental and Theoretical Study
Wiley - Tập 6 Số 6 - Trang 1021-1030 - 2013
Elena Pérez‐Mayoral, Inês Matos, Petr Nachtigall, Miroslav Položij, Isabel Fonseca, Dana Vitvarová‐Procházková, Jiřı́ Čejka
AbstractThe high activity and selectivity of zeolites in the cyclisation of unsaturated alcohols is reported for the first time; the details of a reaction mechanism based on quantum chemical calculations are also provided. The high efficiency of zeolites MFI, BEA and FAU in the cyclisation of unsaturated alcohols (cis‐decen‐1‐ol, 6‐methyl...... hiện toàn bộ
Tuning the Porosity and Photocatalytic Performance of Triazine‐Based Graphdiyne Polymers through Polymorphism
Wiley - Tập 12 Số 1 - Trang 194-199 - 2019
Dana Schwarz, Amitava Acharjya, Arun Ichangi, Yaroslav S. Kochergin, Pengbo Lyu, Maksym Opanasenko, Ján Tarábek, Jana Vacek Chocholoušová, Jaroslav Vacek, Johannes Schmidt, Jiřı́ Čejka, Petr Nachtigall, Arne Thomas, Michael J. Bojdys
AbstractCrystalline and amorphous organic materials are an emergent class of heterogeneous photocatalysts for the generation of hydrogen from water, but a direct correlation between their structures and the resulting properties has not been achieved so far. To make a meaningful comparison between structurally different, yet chemically similar porous polymers, two p...... hiện toàn bộ
Controlling the Adsorption Enthalpy of CO2 in Zeolites by Framework Topology and Composition
Wiley - Tập 5 Số 10 - Trang 2011-2022 - 2012
Lukáš Grajciar, Jiřı́ Čejka, Arnošt Zukal, C. Otero Areán, Gemma Turnes Palomino, Petr Nachtigall
AbstractZeolites are often investigated as potential adsorbents for CO2 adsorption and separation. Depending on the zeolite topology and composition (Si/Al ratio and extra‐framework cations), the CO2 adsorption heats at low coverages vary from −20 to −60 kJ mol−1, and with increasing surface coverage ad...... hiện toàn bộ
High‐Performance Supported Iridium Oxohydroxide Water Oxidation Electrocatalysts
Wiley - Tập 10 Số 9 - Trang 1943-1957 - 2017
Cyriac Massué, Verena Streibel, Xing Huang, J. Noack, Andrey Tarasov, Sébastien Cap, Robert Schlögl
AbstractThe synthesis of a highly active and yet stable electrocatalyst for the anodic oxygen evolution reaction (OER) remains a major challenge for acidic water splitting on an industrial scale. To address this challenge, we obtained an outstanding high‐performance OER catalyst by loading Ir on conductive antimony‐doped tin oxide (ATO)‐nanoparticles by a microwave...... hiện toàn bộ
Rational Design of Sulfur‐Doped Copper Catalysts for the Selective Electroreduction of Carbon Dioxide to Formate
Wiley - Tập 11 Số 1 - Trang 320-326 - 2018
Yun Huang, Yilin Deng, Albertus D. Handoko, Gregory K. L. Goh, Boon Siang Yeo
AbstractThe selective electroreduction of CO2 to formate (or formic acid) is of great interest in the field of renewable‐energy utilization. In this work, we designed a sulfur‐doped Cu2O‐derived Cu catalyst and showed that the presence of sulfur can tune the selectivity of Cu significantly from the production of various CO<...... hiện toàn bộ
Theoretical Insight into the Trends that Guide the Electrochemical Reduction of Carbon Dioxide to Formic Acid
Wiley - Tập 9 Số 4 - Trang 358-363 - 2016
Jong Suk Yoo, Rune Christensen, Tejs Vegge, Jens K. Nørskov, Felix Studt
AbstractThe electrochemical reduction (electroreduction) of CO2 to formic acid (HCOOH) and its competing reactions, that is, the electroreduction of CO2 to CO and the hydrogen evolution reaction (HER), on twenty‐seven different metal surfaces have been investigated using density functional theory (DFT) calculations. Owing t...... hiện toàn bộ
Fe/W Co‐Doped BiVO4 Photoanodes with a Metal–Organic Framework Cocatalyst for Improved Photoelectrochemical Stability and Activity
Wiley - Tập 9 Số 19 - Trang 2824-2831 - 2016
Zhengbo Jiao, Jingjing Zheng, Chenchen Feng, Zeli Wang, X.‐S. Wang, Gongxuan Lü, Yingpu Bi
AbstractBiVO4 has been identified as one of the excellent visible light responsive photoanodes for use in photoelectrochemical (PEC) water splitting. However, pristine BiVO4 usually exhibits relative low photocatalytic properties owing to insufficient charge separation and transport characteristics. Although the marginal n‐...... hiện toàn bộ
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