Results 71 to 80 of about 1,654,745 (247)

Phase Boundary Engineering of Co2P‐CoP Branched Nanoparticles Enhances Cobalt Oxidation for Oxygen Evolution Electrocatalysis

Advanced Materials, EarlyView.
Phase boundaries between Co2P and CoP are constructed through a controlled transformation of Co to Co2P‐CoP branched nanoparticles. The polycrystalline mixed‐phase Co2P‐CoP branches are enriched with phase boundaries that stabilize Co active sites for OER. This work highlights phase boundary engineering as a powerful approach to tailor active sites and
Zeno R. Ramadhan, Soshan Cheong, Sankhadip Saha, Qinyu Li, Xiaoran Zheng, Samuel V. Somerville, Agus R. Poerwoprajitno, Priyank V. Kumar, Liming Dai, J. Justin Gooding, Richard D. Tilley   +10 more
wiley   +1 more source

A Dynamic Analysis of the Multi-Stack SOFC-CHP System for Power Modulation

Energies, 2019
This paper performs a dynamic analysis of a 10-kW solid oxide fuel cell/combined heat and power (SOFC-CHP) system with a multi-stack module via numerical simulations.
Cheng-Hao Yang, Shing-Cheng Chang, Yen-Hsin Chan, Wen-Sheng Chang   +3 more
doaj   +1 more source

“Smelltronics”—From Gas to Smell Sensing

Advanced Materials, EarlyView.
The emerging field of smelltronics, encompassing sensing technologies for complex volatile organic compounds, holds significant potential for extracting valuable chemical information. It facilitates the noninvasive, real‐time monitoring of humans, food, and the environment.
Takeshi Ono, Tsunaki Takahashi, Jiangyang Liu, Haruka Honda, Zeng Jing, Wataru Tanaka, Takuro Hosomi, Takeshi Yanagida   +7 more
wiley   +1 more source

High Performance Carbon Supported Palladium Catalyst in Anodes of Proton Exchange Membrane Fuel Cell.

International Journal of Electrochemical Science, 2013
Carbon support palladium catalyst (Pd/C) were prepared by borohydride method and characterized by XRD, TEM and EDX and then used to prepare anodes and cathodes for performance evaluation in single cell.
Rafael Nogueira Bonifacio, Almir Oliveira Neto, Marcelo Linardi   +2 more
doaj   +1 more source

Understanding the build-up of a Technological Innovation System around Hydrogen and Fuel Cell Technologies [PDF]

This study provides insight into the development of hydrogen and fuel cell technologies in the Netherlands (1980-2007). This is done by applying a Technological Innovation System (TIS) approach.
Roald A.A. Suurs, Ruud E.H.M. Smits, Marko P. Hekkert   +2 more
core  

Hydrogen Fuel Cell Analysis: Lessons Learned from Stationary Power Generation Final Report [PDF]

, 2010
This study considered opportunities for hydrogen in stationary applications in order to make recommendations related to RD&D strategies that incorporate lessons learned and best practices from relevant national and international stationary power efforts,
Sunggyu Lee, Dogan, Fatih, Rolufs, Angie, Grasman, Scott E., Sheffield, John W., Angie Rolufs, John W Sheffield, Lee, Sunggyu, Scott E Grasman, Koylu, Umit O., Fatih Dogan, Umit O Koylu   +11 more
core   +1 more source

Unveiling Exsolution‐Induced Giant Electronic and Magnetic Property Changes in Non‐Stoichiometric Titanate Perovskite Thin Films

Advanced Materials, EarlyView.
A giant insulator to metal transition and emergent superparamagnetism are revealed by nanoparticle exsolution in non‐stoichiometric titanate perovskite thin films. By combining transport, synchrotron spectroscopy, and first‐principles calculations, this work reveals how defect reconfiguration and lattice reconstruction fundamentally reshape electronic ...
Sungil Kim, June Ho Lee, Yaolong Xing, Dongchang Kim, Haeseong Jeong, Mongjun Jeong, Manuel Valvidares, Stuart S. P. Parkin, Sang Ho Oh, Donghwa Lee, Hyojin Yoon, Hyeon Han   +11 more
wiley   +1 more source

Current Density Maximization in Palladium-Based Gas Diffusion Electrode in Proton Exchange Membrane Fuel Cell

International Journal of Electrochemical Science, 2013
In this study the influence of polymeric ionomer concentration on the performance of gas diffusion electrode containing Pd/C as a substitute for usual Pt/C electrodes in PEMFC was verified. Values between 56 and 59 % of ionomer related to the mass of the
Rafael Nogueira Bonifácio, Almir Oliveira Neto, Marcelo Linardi   +2 more
doaj   +1 more source

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

Carbon fiber paper based on composites of carbon and polyacrylonitrile for fuel cell application

Carbon Trends
Carbon fiber paper is one of the most important substrates used in the gas diffusion layer of the polymer electrolyte membrane fuel cell. A novel approach to creating carbon fiber paper using polyacrylonitrile compounds was proposed in this study.
Aref Arabsahebi, Parisa Akbarian, Mehdi Kheirmand   +2 more
doaj   +1 more source