Results 81 to 90 of about 65,275 (275)

Antimony-doped graphene nanoplatelets [PDF]

, 2015
Heteroatom doping into the graphitic frameworks have been intensively studied for the development of metal-free electrocatalysts. However, the choice of heteroatoms is limited to non-metallic elements and heteroatom-doped graphitic materials do not ...
A Fasolino, A Ramelan, AA Balandin, AB Stambouli, C Zhang, C-M Gong, D Geng, H Liu, I-Y Jeon, I-Y Jeon, I-Y Jeon, I-Y Jeon, J Chen, J Greeley, J Liang, JK Nørskov, JP Collman, JW Cogswell, K Schoots, KN Kudin, KP Gong, KS Kim, L Qu, MD Stoller, MP Seah, R Bashyam, R Liu, RC Saxena, S Bae, S Jacobsson, S Wang, S Yang, T Krishnakumar, T Xing, T Yu, TO Wehling, W Sheng, WE Swartz Jr, WS Hummers Jr, X Sun, X Wang, Y Bing, Y Liang, YD Wang, Z Jin, Z Yang, Z-H Sheng, ZQ Li   +47 more
core   +1 more source

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

Simultaneous Improvements in Performance and Durability of an Octahedral PtNix/C Electrocatalyst for Next-Generation Fuel Cells by Continuous, Compressive, and Concave Pt Skin Layers [PDF]

, 2017
Simultaneous improvements in oxygen reduction reaction (ORR) activity and long-term durability of Pt-based cathode catalysts are indispensable for the development of next-generation polymer electrolyte fuel cells but are still a major dilemma. We present
Gabor Samjeskè, Kotaro Higashi, Oki Sekizawa, Shinobu Takao, Takuma Kaneko, Tomohiro Sakata, Tomoya Uruga, Xiao Zhao, Yasuhiro Iwasawa, Yusuke Yoshida   +9 more
core   +2 more sources

Establishing a Model Precursor System: Over a Decade of Research on Carbon Dots from the Citric Acid‐Urea System

Advanced Functional Materials, EarlyView.
The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu, Zhiqi Cai, Xiangxin Sun, Hanyi Zhang, Yiming Hao, Jun Wu, Zekun Yan, Xue Wu, Yiqi Liang, Liming Wang, Songnan Qu   +10 more
wiley   +1 more source

Scalable production of high-performance electrocatalysts for electrochemical water splitting at large current densities

eScience
Electrochemical water splitting is a pivotal technology in the large-scale production of green hydrogen for sustainable future energy provisions. Highly active, stable electrocatalysts have been extensively explored, but the majority suffer from low ...
Zichen Xu, Zhong-Shuai Wu
doaj   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

EPR spectroscopy of iron- and nickel-doped [ZnAl]-layered double hydroxides: modeling active sites in heterogeneous water oxidation catalysts [PDF]

, 2020
Iron-doped nickel layered double hydroxides (LDHs) are among the most active heterogeneous water oxidation catalysts. Due to inter-spin interactions, however, the high density of magnetic centers results in line-broadening in magnetic resonance spectra ...
Britt, R. David, Fu, Wen, Gray, Harry B., Hunter, Bryan M., Sayler, Richard I.   +4 more
core  

Rate‐Adaptive Site Transformation Catalyst for Parallel Water Dissociation and Hydrogen Adsorption in Alkaline Hydrogen Evolution

Advanced Functional Materials, EarlyView.
This work presents a rate‐adaptive site transformation strategy in Ag‑ethylenediamine intercalated Co9S8, which not only enables parallel water dissociation and H* adsorption, but also allows the catalyst to provide more active sites under high demand, removing a major bottleneck. The catalyst achieves a record current density of 4.2 A cm−2@2.0 V, with
Yongqi Ye, Yuzhuo Jiang, Bin Tian, Derek Ho   +3 more
wiley   +1 more source

Atomically Dispersed Metal‐Nitrogen‐Carbon Electrocatalysts for the Oxygen Reduction Reaction

ChemElectroChem
The quest for alternatives to Pt as an oxygen reduction electrocatalyst, possessing high activity, stability, and abundant reserves, holds great significance for H2/O2 fuel cells.
Jiajia Lu, Peng‐Jun Deng, Gaoliang Fu, Xiangyu Meng, Shouren Zhang, Baocheng Yang   +5 more
doaj   +1 more source

Iron Sulfide Materials: Catalysts for Electrochemical Hydrogen Evolution

Inorganics, 2019
The chemical challenge of economically splitting water into molecular hydrogen and oxygen requires continuous development of more efficient, less-toxic, and cheaper catalyst materials.
Dominikus Heift
doaj   +1 more source