Results 51 to 60 of about 7,818 (254)

Recent Progress in the Phase‐Controlled Synthesis of Ruthenium Nanocrystals for Catalytic Applications

Advanced Materials, EarlyView.
Template effect and kinetic control enable crystal‐phase engineering of Ru nanocrystals, granting access to either metastable fcc‐Ru or stable hcp‐Ru with distinct surface structures, thermal stabilities, and catalytic behaviors. Moreover, the hcp‐Ru can further serve as an epitaxial template to direct Pd and Rh nanocrystals into the metastable hcp ...
Jianlong He, Zhiqi Wang, Jiaqi Guan, Younan Xia   +3 more
wiley   +1 more source

Studies on PEM Fuel Cells Using Various Alcohols for Low Power Applications

International Journal of Electrochemical Science, 2008
The Direct Alcohol Fuel Cell (DAFC) appears to be the most promising replacement for batteries in portable applications such as cellular phones, personal Digital Assistants (PDAs), digital cameras and laptop computers.
J. Arun Kumar, P. Kalyani, R. Saravanan
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Flicker Noise Spectroscopy in the Analysis of Electrochemical Noise of Hydrogen-air PEM Fuel Cell During its Degradation

International Journal of Electrochemical Science, 2017
A variation in fluctuation dynamics of the noise component of the electric potential of a fuel cell was studied. A fuel cell with polymer membrane and gas diffusion layer was tested and treated with a fast degradation procedure.
E.A. Astafev, A.E. Ukshe, R.A. Manzhos, Yu.A. Dobrovolsky, S.G. Lakeev, S.F. Timashev   +5 more
doaj   +1 more source

Data on the thermo-fluid simulation of open-cathode fuel cell stack depending on the location of the oxidizer/cooling supply system

Data in Brief, 2020
The content of this paper provides simulation data of the distribution of temperature fields, and oxidizer/cooling agent (air) flows in dependence with location of the oxidizer/cooling supply system in open-cathode polymer electrolyte membrane fuel cell (
Evgeny Anisimov, Nikita Faddeev, Nina Smirnova   +2 more
doaj   +1 more source

Organic–Inorganic Hybrid Hole‐Selective Layer Interface Engineering for Enhanced Photoelectrochemical Water Oxidation on Bismuth Vanadate Photoanodes

Advanced Materials, EarlyView.
In this research the [4‐(3,6‐dimethyl‐9H‐carbazol‐9‐yl)butyl] phosphonic acid (Me‐4PACz) self‐assembled monolayers (SAMs) to bond with NiOx is first designed to be the organic‐inorganic hybrid hole‐selective layers, which promotes the BiVO4 photoanodes photoelectrochemical water splitting performance with 6.9 mA cm−2 photocurrent at 1.23 VRHE and at ...
Kaige Tian, Dingyanyan Zhou, Jiafan Zhang, Zhennan Wang, Yujin Ji, Youyong Li, Hui Li, Zhong‐Yong Yuan, Shuit‐Tong Lee, Tianyi Ma, Junqing Yan   +10 more
wiley   +1 more source

A highly sensitive breathable fuel cell gas sensor with nanocomposite solid electrolyte

InfoMat, 2019
The present work deals with a poly(vinyl alcohol)‐based membrane mixed with poly(4‐styrenesulfonic acid) to be used as a proton‐conducting solid‐state electrolyte in an electrochemical gas sensor for the detection of alcohol. A cross‐linking bonding semi‐
Jing Zhang, Gaopeng Jiang, Timothy Cumberland, Pan Xu, Yalin Wu, Stephen Delaat, Aiping Yu, Zhongwei Chen   +7 more
doaj   +1 more source

Application of the Sensor Selection Approach in Polymer Electrolyte Membrane Fuel Cell Prognostics and Health Management

Energies, 2017
In this paper, the sensor selection approach is investigated with the aim of using fewer sensors to provide reliable fuel cell diagnostic and prognostic results. The sensitivity of sensors is firstly calculated with a developed fuel cell model.
Lei Mao, Ben Davies, Lisa Jackson
doaj   +1 more source

A‐Site High‐Entropy Perovskite Enabling Sulfur‐Tolerant and Coking‐Resistant Anodes for Hydrocarbon‐Fueled Solid Oxide Fuel Cells

Advanced Materials, EarlyView.
A‐site high‐entropy engineering creates a robust Pr0.2Ba0.2La0.2Sr0.2Ca0.2FeO3‐δ (PBLSCF) perovskite‐based solid oxide fuel cell (SOFC) anode with in situ Fe nanoparticle exsolution to boost fuel oxidation and durability, achieving strong sulfur tolerance and coking resistance.
Lei Wu, Yue Bao, Zhi‐Hao Wang, Haixia Li, John Meynard M. Tengco, Ramin Babazadeh Dizaj, Patrick Holcombe, Roozbeh Seifollahy Astaraee, Nathan Thornburg, Chuancheng Duan, Fanglin Chen   +10 more
wiley   +1 more source