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Photochromic materials present photocontrollable properties, which is of great interest for potential applications including high-density storage and optical displays. Herein, we demonstrate a promising pathway toward smart photochromic nanocomposite exploration by anchoring of carbon dots (CDs) to titanium dioxide (TiO) porous films. This study reveals that the color of the CDs/TiO film obtained by dropping anchoring becomes darker and that obtained by immersion anchoring becomes lighter, both under blue light irradiation. For the photobleaching material system, the spectral response is strongly dependent on wavelength and polarization of the exciting light, which provides new dimensions for optical information encryption and memory. This work lays the foundation for the materials platform in the integration of advanced information processing in the future.
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http://dx.doi.org/10.1021/acsami.9b19403 | DOI Listing |
J Colloid Interface Sci
September 2025
School of Material Electronics and Energy Storage, Zhongyuan University of Technology, Zhengzhou 450007, China. Electronic address:
Developing single-atom catalysts (SACs) with dense active sites and universal synthesis strategies remains a critical challenge. Herein, we present a scalable and universal strategy to synthesize high-density transition metal single-atom sites, anchored in nitrogen-doped porous carbon (M-SA@NC, M = Fe, Co, Ni) and investigate their oxygen reduction reaction (ORR) catalytic activity for flexible Zn-air batteries (ZABs). Using a facile coordination-pyrolysis strategy, atomically dispersed M-N sites with high metal loading are achieved.
View Article and Find Full Text PDFAdv Mater
September 2025
School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, 150080, China.
The polysulfide shuttling and sluggish sulfur redox kinetics hinder the commercialization of lithium-sulfur (Li-S) batteries. Herein, the fabrication of phosphorus (P)-doped iron telluride (FeTe) nanoparticles with engineered Te vacancies anchored on nitrogen (N)-doped carbon (C) (P-FeTe@NC) is presented as a multifunctional sulfur host. Theoretical and experimental analyses show that Te vacancies create electron-deficient Fe sites, which chemically anchor polysulfides through enhanced Fe─S covalent interactions.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2025
Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29634, United States.
Developing next-generation anodes with high silicon (Si) contents requires thoughtful embedment of Si particles in protective media, mainly carbonaceous materials. However, it has been challenging to simultaneously realize optimal electrical conduction, structural integrity, and low-cost synthesis for advancing Si-carbon materials. In this work, we addressed these challenges by synthesizing a composite, where commercial Si nanoparticles are embedded in a dual carbon framework via a facile solution mixing and annealing process.
View Article and Find Full Text PDFSmall
September 2025
Centre for Interdisciplinary Research, D. Y. Patil Education Society (Deemed to be University), Kolhapur, Maharashtra, 416 006, India.
Developing efficient, sustainable, earth-abundant, cost-effective electrocatalysts is extremely challenging. Cobalt-iron-layered double hydroxide nanosheets (Co-Fe-LDH NSs) hybridized with carbon nanotubes (CNTs) lead to anchors Co-Fe-LDH-CNTs (CFC) self-assembly with a mesoporous morphology, expanded surface area, fast charge transfer kinetics, and high electrical conductivity. The resultant anchored CFC nanohybrid is highly active for electrocatalytic oxygen evolution reaction (OER), showing a lower overpotential of 221 and 313 mV at a current density of 10 and 25 mA cm, respectively, compared to pristine Co-Fe-LDH (339 and 391 mV), showcasing the significant role of CNTs in improving the electrocatalytic performance of pristine Co-Fe-LDH.
View Article and Find Full Text PDFSmall
September 2025
State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia, 750021, P. R. China.
Electrochemical CO reduction (CORR) to carbon monoxide (CO) offers a sustainable pathway for carbon utilization, yet challenges remain in terms of improving selectivity and activity. Herein, we report a Ni/NC catalyst synthesized via a milling - pyrolysis method, in which Ni particles anchored on nitrogen-doped carbon (NC) are electrochemically activated under an Ar atmosphere, leading to their structural evolution into single-atom Ni sites. After activation in Ar atmosphere, the current density nearly doubles (from ≈30 to ≈60 mA cm), and concurrently, the Faradaic efficiency of CO stays at ∼90% with the potential set to -0.
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