Results 141 to 150 of about 67,798 (255)

Investigation of absorption of nanocrystalline silicon

, 1999
Nanocrystalline silicon embedded SiO2 matrix is formed by annealing the SiO2 films fabricated by plasma enhanced chemical vapor deposition technique. In conjunction with the micro-Ramam spectra, the absorption spectra of the films have been investigated.
Kong GL, Ma ZX, Ma ZX,Chinese Acad Sci,Inst Semicond,State Key Lab Surface Phys,Beijing 100083,Peoples R China., Chu JH, Liao XB   +4 more
core  

Dual‐Function Electrocatalysis: Simultaneous Wastewater Remediation and Hydrogen Evolution—A Comprehensive Review

Carbon Energy, EarlyView.
Replacing the oxygen evolution reaction with the electro‐oxidation of pollutants and waste streams offers an energy‐efficient route for simultaneous hydrogen production and pollutant remediation. This review summarizes the reaction mechanisms, catalyst design principles, and emerging paired‐electrolysis strategies that govern activity, selectivity ...
Safa Al‐Yahyaey, Rashid Al‐Hajri, Ala'a H. Al‐Muhtaseb, Hussein A. Younus, Mohammed Al‐Abri   +4 more
wiley   +1 more source

Breaking the grain size limit of glass-crystallized transparent nanoceramics via multi-phase interface locking. [PDF]

Nat Commun
Xu W, Guo Y, Fan H, Liu Y, Ma Z, Bai L, Fan R, Zhang T, Zhang G, Chen Y, Zhang S, Liu C, Ge B, Sun J, Dong Y, Li J.   +15 more
europepmc   +1 more source

A Review of Grain Boundaries: Formation Mechanism, Synthesis Strategy, and Application in Electrocatalysis

EcoEnergy, EarlyView.
An overview of grain boundary engineering in the field of electrocatalysis. ABSTRACT Key electrocatalytic reactions such as HER, OER, ORR, CO2RR, and NRR offer promising routes for storing renewable energy as chemical fuels. However, their widespread application is constrained due to the lack of highly active and stable catalysts. Grain boundaries (GBs)
Jingyu Gao, Fengming Zhou, Xinying Li, Ying Deng, Zexing Wu, Siyuan Feng, Yujing Zhu, Dan Zhang, Zhenyu Xiao   +8 more
wiley   +1 more source

Ultrafast Optoacoustics Reveals Intricate 3D Anisotropic Elasticity in Nanocrystalline Membranes. [PDF]

Adv Sci (Weinh)
Zhang S, He Y, Luo G, Huang J, Yip PS, Cui H, Zhang W, Wang Z, Ye L, Lu Y, Su Z, Li Y.   +11 more
europepmc   +1 more source

Coupling Selective Organic Oxidation With Hydrogen Evolution Over Metal Halide Perovskite Photocatalysts: Halide‐Dependent Design, Mechanisms, and Stability Challenges

EcoEnergy, EarlyView.
This Review highlights how metal halide perovskites enable coupled selective organic oxidation and hydrogen evolution under visible light. It summarizes halide‐dependent design principles, surface engineering strategies, reaction mechanisms, and stability challenges, providing guidance for developing efficient and durable photocatalytic systems ...
Jutarat Jitrada, Lizhen Liu, Patchanita Thamyongkit, Yanfa Yan, Jun Huang   +4 more
wiley   +1 more source

Energy Dispersive Spectroscopy of Open Dentinal Tubules on Application of Nanocrystalline Hydroxyapatite: An In Vitro Study. [PDF]

F1000Res
Rawat T, Srinath R, Praveen NC, Amisha BS, Murugendrappa Gowdar I, Almalki SA, Gufran K, G V U, Nadar B.   +8 more
europepmc   +1 more source

One‐Step Synthesis of Si–Graphene Heterostructures via in‐Flight Gas‐Phase Mixing for High‐Capacity Silicon‐Rich Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A one‐step gas‐phase synthesis directly assembles amorphous Si nanoparticles with few‐layer graphene heterostructures via in‐flight mixing. Compositions with only 15 wt.% FLG deliver ~2800 mAh g−1 (Si + FLG) at 0.05 C and retain ~1400 mAh g−1 after 100 cycles at a high cycling rate of 1 C, enabled by a percolated, strain‐buffering graphene network that
Muhammad Ali, Mukarram Ali, Yasaman Jarrahizadeh, Axel Lorke, Michael A. Pope, Hartmut Wiggers   +5 more
wiley   +1 more source

Influence of Nickel Content and Heat Treatment Parameters on Kinetics of Crystallisation, Magnetic Properties and Brittleness of Nanocrystalline Fe-Ni-B Alloys Obtained by Ultra-Rapid Annealing with Joule Heating. [PDF]

Materials (Basel)
Ferenc J, Czyżewska Z, Kowalczyk M, Sielicki K, Oleszak D.   +4 more
europepmc   +1 more source

Synergistic Modulation of Conductivity and Oxidation Stability in SiHfBCN Ceramics via UV‐Assisted Structural Evolution

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A quinary UV‐curable SiHfBCN ceramic photoresist with high ceramic yield enhanced is developed through sequential molecular design for high‐temperature sensing coatings. The elevated interconnected conductive network induced by chemically bonded carboxylated MWCNTs enables the pyrolyzed ceramics' enhanced conductivity and excellent oxidation stability.
Xiyue Zhu, Mingshuo Zhang, Jun Chen, Chen Hu, Jinshuo Zhang, Xin Liu, Xichao Dong, Laifei Cheng, Xingang Luan   +8 more
wiley   +1 more source