Results 61 to 70 of about 12,807 (216)

Modulating Electronic Structure of Atomic Iron Catalyst by Metallic Cobalt Cooperation for Boosting Oxygen Reduction/Evolution Reactions in Rechargeable and Flexible Zinc‐Air Battery

Carbon Energy, EarlyView.
Porous Co,Fe@NCNF‐900 catalyst has been innovatively synthesized as enhanced bifunctional catalysts by modulating the electronic structure of the atomic Fe catalyst through metallic Co cooperation. DFT analysis indicates that metallic Co as an electron donor can induce electron redistribution of the atomic Fe catalyst, thereby reducing the rate ...
Shuangshuang Ren, Pengfei Zhang, Xinxin Tang, Jian Tang, Jing Zhang, Liang Chen, Hegen Zheng, Zhengkai Tu, Yiyu Chen, Zhongmin Wan, Siew Hwa Chan   +10 more
wiley   +1 more source

Beyond Activity: The Unified Framework of the Sabatier Principle to Guide Rational Design of Durable and Active Electrocatalysts

Carbon Energy, EarlyView.
In this review, a unified framework of the Sabatier principle is applied to a diverse range of catalytic and electrocatalytic systems for advanced clean energy technologies, with a particular focus on the oxygen reduction reaction (ORR). This approach will guide the design and development of highly active and stable catalysts for fuel cells ...
Wanying Zhang, Quan Zhou, Xuanxuan Bi, Luo Luo, Yunxiang Cheng, Rongyue Wang, Zhongwei Chen   +6 more
wiley   +1 more source

Strongly‐Anchored Ionomer‐Free Anode Catalyst Layer Fabricated via Joule Heating Achieves Efficient Electron/Mass Transfer for Acidic Water Electrolysis

Carbon Energy, EarlyView.
An ionomer‐free anode catalyst layer is fabricated via rapid Joule heating, partially embedding IrO2 nanoparticles into the membrane to form a robust, anchored interface. This architecture eliminates ionomer‐induced poisoning and mass‐transport barriers, enabling efficient water‐mediated proton transport and electronic connectivity.
Yuyang Wang, Shuheng Zhang, Haokai Xu, Xianqing Zhu, Jian Huang, Liang Zhang, Dingding Ye, Jun Li, Xun Zhu, Qiang Liao   +9 more
wiley   +1 more source

Iron and Nickel Substituted Perovskite Cobaltites for Sustainable Oxygen Evolving Anodes in Alkaline Environment

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Perovskite oxide catalysts with reduced Co content, substituted by Fe and Ni, are synthesized and studied for their activity in the oxygen evolution reaction in alkaline media. An increase in the intrinsic catalytic activity (obtained by the (RctCdl)−1 product) of the base material (Ba0.5Gd0.8La0.7Co2O6‐δ) is seen for an as high as 70 % substitution of
Henrik Petlund, Alaa Faid, Junjie Zhu, Anuj Pokle, Truls Norby, Svein Sunde, Athanasios Chatzitakis   +6 more
wiley   +1 more source

Symmetry Breaking of FeN4 by Interlaminar Oxygen‐Bonded Vacancy Defect Toward Efficient Oxygen Reduction Reaction

EcoEnergy, EarlyView.
The adjacent vacancy defect bonded with interlaminar oxygen breaks the symmetry of FeN4 active site, facilitating the *OH desorption and lowering the reaction overpotential, ultimately enhancing the intrinsic catalytic activity of the Fe center. ABSTRACT Developing highly efficient non‐noble iron‐nitrogen‐carbon (Fe‐N‐C) catalysts with FeN4 active ...
Liqun Liu, Jingyi Hu, Yongkang Zhu, Xuebi Rao, Peng Li, Shiming Zhang, Jiujun Zhang   +6 more
wiley   +1 more source

Impact of Sensory-adapted Dental Environment on Potentially Cooperative Children: An Observational Study [PDF]

Journal of South Asian Association of Pediatric Dentistry
Aim: The present study is an observational study assessing the impact of a sensory-adapted dental environment (SADE) over a routine dental environment (RDE) on potentially cooperative children receiving routine oral healthcare. Materials and methods: The
Naina K Gupta, Ankur Jain, Anaya Kulkarni Kale, Mylavarapu K Sagar, Madiha Khan, Ali Khan   +5 more
doaj   +1 more source

Recycling Ni‐Rich NCM Cathode Materials From Spent Li‐Ion Batteries as Efficient Electrocatalyst for Urea Oxidation

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Mounting battery waste demands sustainable solutions. We recycle spent NCM cathodes into high‐performance urea oxidation catalysts, enabling sustainable hydrogen production and simultaneous urea waste treatment. The burgeoning electric vehicle industry has intensified the demand for high‐energy Ni‐Co‐Mn (NCM) cathodes, yet their end‐of‐life management ...
Wencheng Su, Chao Wang, Huiyan Zeng, Jianwen Wang, Long Gu, Mengxian Li, Liting Deng, Chi‐Ying Vanessa Li, Chunzhen Yang   +8 more
wiley   +1 more source

Electronic Synergy in NiCo‐Embedded Nitrogen‐Doped Hollow Mesoporous Carbon Spheres for Bifunctional Oxygen Catalysis and Zinc–Air Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study employs a hard‐templating etching strategy to synthesize N‐doped hollow mesoporous carbon spheres embedded with NiCo nanoparticles (denoted as NiCo@N‐HMCS). The optimized catalyst exhibits exceptional bifunctional catalytic activity for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline media, achieving a ...
Pengyu Tan, Jianwei Lu, Yimin Chen, Kaiwen Yang, Kun Luo, Dan Liu, Weiwei Lei   +6 more
wiley   +1 more source

Treatment with Rhizoma Dioscoreae Extract Has Protective Effect on Osteopenia in Ovariectomized Rats

The Scientific World Journal, 2014
The aims of this study were to evaluate the osteoprotective effect of aqueous extract from Rhizoma Dioscoreae (RDE) on rats with ovariectomy- (OVX-) induced osteopenia.
Zhiguo Zhang, Lihua Xiang, Dong Bai, Xiaowei Fu, Wenlai Wang, Yan Li, Hong Liu, Jinghua Pan, Ya’nan Li, Gary Guishan Xiao, Dahong Ju   +10 more
doaj   +1 more source

3D Numerical Simulation of Rock Cutting of an Innovative Non-Planar Face PDC Cutter and Experimental Verification

Applied Sciences, 2019
The low rock breaking efficiency of conventional polycrystalline diamond compact (PDC) bits in hard abrasive formations prompts the development of PDC cutting elements from the planar structure to the non-planar structure.
Jianxun Liu, Hualin Zheng, Yuchun Kuang, Han Xie, Chao Qin   +4 more
doaj   +1 more source