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Tailoring Acid-Salt Hybrid Electrolyte Structure for Stable Proton Storage at Ultralow Temperature.
Adv Mater
December 2024
Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
The critical challenges in developing ultralow-temperature proton-based energy storage systems are enhancing the diffusion kinetics of charge carriers and inhibiting water-triggered interfacial side reactions between electrolytes and electrodes. Here an acid-salt hybrid electrolyte with a stable anion-cation-HO solvation structure that realizes unconventional proton transport at ultralow temperature is shown, which is crucial for electrodes and devices to achieve high rate-capacity and stable interface compatibility with electrodes. Through multiscale simulations and experimental investigations in the electrolyte employing ZnCl introduced into 0.
View Article and Find Full Text PDFDeciphering the surface electrochemical reconstruction of ruthenium-cobalt-nickel phosphide for efficient high-current hydrogen evolution and overall water splitting.
J Colloid Interface Sci
December 2024
Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources of Ministry of Education, Wuhan University of Technology, Wuhan, Hubei 430073, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei 430073, China. Electronic address:
Development of efficient and stable bifunctional transition metal phosphide catalysts is critical for advancing hydrogen production technologies. Herein, RuCo co-doped NiP (RuCoNiP) was designed and synthesized by one-step electrodeposition for Ni electronic structure modulation, and evolved to RuCoNiP@α-Ni(OH) and RuCoNiP@Co/Ni(OH) heterointerfaces by self-assembled reconstruction during HER and OER processes, respectively. RuCoNiP@α-Ni(OH) enhances HER activity (305.
View Article and Find Full Text PDFAtmospheric Pressure Alkaline Etching of MFI Zeolite Under Mild Temperature Toward Hollow Microstructure and Ultralow k Film.
Small Methods
December 2024
Nanchang Key Laboratory of Photoelectric Conversion and Energy Storage Materials, College of Science, Nanchang Institute of Technology, Nanchang, 330099, P. R. China.
Constructing a hollow structure inside zeolite is very helpful for improving its performance. Unlike the conventional alkaline etching technique usually operated at high temperature (typically 170 °C) and high pressure (autogenerated in autoclave), here, it is discovered that zeolite MFI nano-box can be achieved under mild etching conditions of atmospheric pressure and low temperature of 80 °C, making it very attractive for energy conservation and practical applications. A hollow-structure formation mechanism of protection-dissolution etching is demonstrated by characterizing MFI crystals obtained under different etching time, temperature, and etchant concentration.
View Article and Find Full Text PDFInduce (101) plane exposure boosting photocatalytic CO reduction in aerobic environment for NH-MIL-125.
J Colloid Interface Sci
December 2024
College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, PR China. Electronic address:
NH-MIL-125 with abundant porosity and specific interactions with CO molecules, has been demonstrate great potential in the field of photocatalytic CO reduction. However, conventional NH-MIL-125 and their composites much lower CO photoreduction efficiency in aerobic environments because of the O competition. To circumvent the issue, this study modifies NH-MIL-125 through crystal facet engineering to enhance its selective CO adsorption and photocatalytic efficiency in the environment of impurity CO.
View Article and Find Full Text PDFMagnetic Domain Wall Energy Landscape Engineering in a Ferrimagnet.
Nano Lett
December 2024
Tianjin Key Laboratory for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, 300350 Tianjin, China.
Architectures based on a magnetic domain wall (DW) can store and process information at a high speed in a nonvolatile manner with ultra-low power consumption. Recently, transition-metal rare earth metal alloy-based ferrimagnets have attracted a considerable amount of attention for the ultrafast current-driven DW motion. However, the high-speed DW motion is subject to film inhomogeneity and device edge defects, causing challenges in controlling the DW motion and hindering practical application.
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