Results 101 to 110 of about 33,797 (295)

Single‐Atom Intercalation‐Driven Topological Ferroelectric Metal for High‐Performance Hydrogen Evolution Reaction

Advanced Science, EarlyView.
Single‐atom Cu intercalation enables porous AB3 monolayers to integrate ferroelectricity, metallicity, topology, and hydrogen evolution catalysis in one platform. Switchable FE polarization modulates work function and hydrogen adsorption thermodynamics, providing an electrically controllable route to activate basal‐plane HER activity in topological ...
Rongxuan Lu, Jian Zhang, Jialin Gong, Wenxian Li, Gang Zhang   +4 more
wiley   +1 more source

Innovative Air Cathode with Ni‐Doped Cobalt Sulfide in Highly Ordered Macroporous Carbon Matrix for Rechargeable Zn–Air Battery

Advanced Science
To realize the practical application of rechargeable Zn–Air batteries (ZABs), it is imperative to develop a non‐noble metal‐based electrocatalyst with high electrochemical performance for the oxygen reduction reaction (ORR) and oxygen evolution reaction (
Yujin Son, Kyeongseok Min, Sungkyun Cheong, Boyoung Lee, Sang Eun Shim, Sung‐Hyeon Baeck   +5 more
doaj   +1 more source

Near‐Unity Selectivity Inversion Between CO2 Electroreduction and H2 Evolution via Atomic Coordination Editing

Advanced Science, EarlyView.
Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao, Yuanyuan He, Mengyu Duan, Peng Yin, Jinxing Chen, Xu Han, Jie Yang, Yulin Wang, Xingjie Fu, Shibo Xi, Chuncheng Chen, Jiong Lu   +11 more
wiley   +1 more source

Green Synthesis and Application of Biochar Derived from Alien Vegetation Wood for Proton Exchange Membrane Fuel Cells

ChemistryOpen
Invasive alien vegetation brought about by various human activities has grown to be a significant threat to the ecosystem and its diversity; therefore, control strategies to combat this threat are being explored.
Alunge Gift Sobekwa, Nakedi Albert Mojapelo, Evan David Visser, Ntalane Sello Seroka, Lindiwe Khotseng   +4 more
doaj   +1 more source

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source

Study on the Reaction Mechanism of RuOx and Its Enhanced Hydrogen Evolution Reaction Activity

Advanced Science, EarlyView.
In situ Raman spectroscopy and DFT calculations reveal that, prior to the onset of HER, the surface of RuOx undergoes reversible reduction and structural reconstruction. The resulting Ru(II)O/Ru(IV)O2 configuration is identified as the true catalytically active species.
Liquan Zhang, Haobo Dong, Jianrui Feng, Longxiang Liu, Fei Guo, Liqun Kang, Guoliang Chai, Mohamed A. Ghanem, Xinde Chen, Ivan P. Parkin   +9 more
wiley   +1 more source

Preparation, characterization of ZrOxNy/C and its application in PEMFC as an electrocatalyst for oxygen reduction

, 2007
In this paper, a noble-metal-free electrocatalyst based on carbon-supported zirconium oxynitride (ZrOxNy/C) was prepared by ammonolysis of carbon-supported zirconia (ZrO2/C) at 950 degrees C and investigated as cathode electrocatalyst towards oxygen ...
Liu, Gang, Wang, Mei Ri, Zhong, He Xiang, Chen, Jian, Zhang, Hua Min   +4 more
core   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

Advanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen, Bapan Biswas, Apinya Ngoipala, Julia Wiktor, Ujjwal Pal, Shalini Singh   +5 more
wiley   +1 more source

A Guide to Electrocatalyst Stability Using Lab-Scale Alkaline Water Electrolyzers

A Guide to Electrocatalyst Stability Using Lab-Scale Alkaline Water ...
Chikaodili E. Chukwuneke (9386716), Michael Espinosa (17835051), Emma Kalokowski (17835054), Yoon Jun Son (4591408), C. Buddie Mullins (1278348), Thuy Vy Le (17835057), Raul A. Marquez (13221380), Kenta Kawashima (1567312)   +7 more
core   +3 more sources

Hydrothermally synthesis Cd(OH)2: a high efficiency catalyst for OER in green hydrogen production

Discover Applied Sciences
The development of an OER electrocatalyst that combines remarkable durability with high activity is a major concern in today’s energy transition. This study utilizes a hydrothermal technique to synthesize Cd(OH)2 directly on a nickel foam (NF) substrate ...
Neelam Nagda, Naveen Suthar, Pushpendra Kumar, K. K. Nagaraja, Ajay Saini   +4 more
doaj   +1 more source