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Deliberate Amorphization of Co-MOF for Constructing Crystalline-Amorphous Heterostructures Toward High-Performance Water Electrolysis.
Small
December 2024
Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, School of Chemistry and Materials Science Nanjing Normal University, Nanjing, 210023, P. R. China.
The endowment of metal organic frameworks (MOF) with superior electrocatalytic performance without compromising their structural/compositional superiorities is of great significance for the development of renewable energy devices, yet remains a grand challenge. Herein, a deliberate partial amorphization strategy is developed to construct a heterostructured electrocatalyst consisting of crystalline Co-MOF and amorphous Co-S nanoflake arrays aligned on the carbon cloth (CC) substrate (abbreviated as Co-MOF/Co-S@CC hereafter) through a rapid sulfuration method. The simultaneous implement of crystalline-amorphous (c-a) heterostructure and nanoflake arrayed architecture on CC substrate renders the Co-MOF/Co-S@CC with abundant and tight active sites, accelerated charge transfer rate, regulated electronic structures, and reinforced structural stability.
View Article and Find Full Text PDFAn efficient electrode for reversible oxygen reduction/evolution and ethylene electro-production on protonic ceramic electrochemical cells.
Sci Bull (Beijing)
December 2024
School of Environment and Energy, South China University of Technology, Guangzhou 510006, China. Electronic address:
Protonic ceramic electrochemical cells (PCECs) have demonstrated great promise for applications in the generation of electricity, and the synthesis of chemicals (for example, ethylene). However, enhancing the electrochemical reactions kinetics and stability of PCECs electrodes is one grand challenge. Here, we present a novel electrode material via a co-doping of cesium (Cs) and niobium (Nb) on PrBaCoO with the composition of PrBaCsCoNbO (PBCCN), which naturally decomposes into dual phases of a double-perovskite PBCCN (DP-PBCCN, ∼92.
View Article and Find Full Text PDFBoosted Solar Thermochemical Low-Temperature CO Splitting On Pt/CeO by Interface Catalysis.
ChemSusChem
January 2025
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.
Solar thermochemical CO splitting using metal oxides is considered as a promising approach to produce solar fuels since it is capable to tap abundant sunlight directly and store solar energy in the renewable fuel. It remains a grand challenge to achieve highly efficient CO splitting at low temperature (<800 °C) due to insufficient activation of metal oxides for CO. Herein, the introduction of a small amount of Pt was found to be able to greatly increase the performance of CO splitting with the highest peak CO production rate of about 65 mL min g, CO productivity of about 53 mL g, nearly 100 % CO conversion and long-term stability for 0.
View Article and Find Full Text PDFEstimating geographic origins of corn and soybean biomass for biofuel production: A detailed dataset.
Data Brief
June 2024
Mechanical Engineering, Colorado State University, Fort Collins, CO 80523, USA.
Article Synopsis
- Sustainable fuel initiatives, like the EPA's Renewable Fuel Standard and the Department of Energy's Sustainable Aviation Fuel Grand Challenge, have boosted the production of corn ethanol and soybean biodiesel, but localized biomass sourcing information is lacking.
- A new dataset utilizes geospatial analysis and USDA crop census data from 2017 to provide insights into biomass sourcing, helping to bridge the knowledge gap related to biofuel costs and environmental impacts.
- By offering detailed, county-level data, this dataset enhances techno-economic assessments and life-cycle analyses, aiding stakeholders in making better investment and resource decisions regarding first-generation biofuels in the U.S.
Hierarchical Assembly of Patternable Chiroptical Biotextiles with Extreme Environment Stability.
ACS Nano
November 2023
State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
Flexible photonic textiles constructed by sustainable cholesteric organization are very promising to achieve a combination of chiroptical structural colors, mechanical robustness, sustainability, and environment stability. However, the efficient assembly of well-ordered cholesteric nanoarchitectures on flexible textiles in a scalable and patternable manner remains a grand challenge. In this study, we develop an efficient and scalable approach to construct large area chiroptical biotextiles using renewable and bioenabled cellulose nanocrystals (CNCs) as building blocks.
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