Results 111 to 120 of about 186,975 (318)

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

Advanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza, Karol Strutyński, Shuai Fu, Yifan Chen, Natalia M. Padial, Isabel del Barrio Gómez, Carlos Martí‐Gastaldo, Andrei N. Khlobystov, Mischa Bonn, Hai I. Wang, Manuel Melle‐Franco, Aurelio Mateo‐Alonso   +11 more
wiley   +1 more source

Spatiotemporal simulation of nickel oxide and carbon phases formation in solid oxide fuel cells (SOFC)

, 2013
The formation of secondary phases in the porous electrodes is a severe mechanism affecting the lifetime of solid oxide fuel cells (SOFC). It can occur via various chemical mechanisms and it has a significant influence on cell performance due to pore ...
Neidhardt, Jonathan, Yurkiv, Vitaliy, Bessler, Wolfgang G.   +2 more
core  

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

Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe‐Inspired Midrib and Cuticle

Advanced Materials, EarlyView.
An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee, Eunbyeol Kim, Kyongtae Choi, Minjun Song, Sunmin Jang, Dongwhi Choi, Donghyun Seo, Min‐Gyu Lee, Younghoon Lee   +8 more
wiley   +1 more source

The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis

Nanomaterials
The utilization of renewable energy for hydrogen production presents a promising pathway towards achieving carbon neutrality in energy consumption.
Fan Zhang, Junjie Zhou, Xiaofeng Chen, Shengxiao Zhao, Yayun Zhao, Yulong Tang, Ziqi Tian, Qihao Yang, Evelina Slavcheva, Yichao Lin, Qiuju Zhang   +10 more
doaj   +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

An innovative and facile synthesis route of (La,Sr)2FeO4+δ–La0.4Sr0.6FeO3−δ composite as a highly stable air electrode for reversible solid oxide cell applications

Journal of Advanced Ceramics
Achieving thermal cycle stability is an imperative challenge for the successful commercialization of solid oxide cell (SOC) technology. Ruddlesden‒Popper (R‒P) oxides, whose thermal expansion coefficient (TEC) is compatible with common electrolytes, are ...
Qihang Ren, Yang Zhang, Haoliang Tao, Ling Qin, Konrad Świerczek, Wanbing Guan, Jianxin Wang, Changrong Xia, Liangzhu Zhu   +8 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

Supersolidophobic Pt catalyst for long-term natural seawater electrolysis with hydrogen production and magnesium extraction

Nature Communications
The electrochemical synthesis of solid compounds is a critical emerging area in electrocatalysis; however, a major challenge is still remaining on severe catalysts scaling driven by strong solid-solid interactions, giving rise to rapid electrode ...
Li Yi, Chaohao Chen, Yingjie Wen, Sixie Zhang, Haocheng Chen, Jinchao Zhu, Jiabin Weng, Wuyong Zhang, Wenwen Xu, Wanbing Guan, Xu Chen, Tianyu Qiu, Xinlong Tian, Zhiyi Lu   +13 more
doaj   +1 more source

Frustrated Lewis pairs on facet-engineered CeO2 boost the conversion of low-concentration CO2 into cyclic ureas with assistance of diamine platforms

Journal of CO2 Utilization
The development of efficient processes for value-added utilization of low-concentration CO2 is an on-going challenge. In this work, we present a sequential system based on diamine platforms for the direct utilization of low-concentration sources of CO2 (≤
Desheng Su, Hualin Chen, Qihao Yang, Hao Liu, Mengting Lv, Yayun Zhao, Junjie Zhou, Qiuju Zhang, Zhiyi Lu, Liang Chen   +9 more
doaj   +1 more source