Results 131 to 140 of about 311,075 (274)

SSA ALGEBRAS

System Informatics, 2023
openaire   +1 more source

Regulating Defect‐Coordinated Single‐Iron‐Atom Catalysts for Efficient Nitrate Reduction Reactions

Carbon Energy, EarlyView.
This figure illustrates the ball‐and‐stick model of an asymmetric monatomic Fe─N2 catalyst and its catalytic process for converting nitrate to ammonia. Shown are the adsorption configurations of precursors and intermediates (NO3− → NO2− → NO → NH2OH → NH3) on the catalyst surface, where brown represents iron atoms, red represents oxygen atoms, dark ...
Xia Ma, Haoying Han, Zhonghui Yang, Hua Li, Xinyu Yan, Jiakang Guo, Chen Chen, Xiaorui Jiao, Yajun Xiang, Gang Wang, Yanwei Yang, Fengjuan Chen, Liang Huang   +12 more
wiley   +1 more source

Self‐Supporting Pt–C60@GO Catalytic Cathodes for Advanced Flexible Li–O2 Batteries

Carbon Energy, EarlyView.
A self‐supporting three‐dimensional Pt–C60@GO cathode was developed for a flexible Li–O2 battery, which demonstrates remarkable electrocatalytic activity and electrochemical stability, including a high areal capacity of 3.70 mAh cm−2, a low cell overpotential of 0.48 V, and an excellent cycle stability exceeding 100 cycles.
Zhiguang Zhao, Kai Zhang, Junfan Zhang, Yawen Liu, Zhao Lv, Kaijie Yang, Jingze Guo, Xiaoyan Zhang, Yuanxing Zhang, Daobin Mu, Xiangyi Luo, Feng Wu, Guoqiang Tan   +12 more
wiley   +1 more source

An Assessment of the Nexus between Good Governance and Economic Growth in Sub-Saharan Africa

Studia Ekonomiczne i Regionalne
This study investigates the nexus between good governance and GDP per capita within Sub-Saharan African countries (SSA), using a dynamic panel data set from 2005 to 2023.
Simba Hamis Miraji, Nyadera Israel Nyaburi   +1 more
doaj   +1 more source

Photoelectrochemical Hydrogen Peroxide Production via Simultaneous Reduction and Oxidation Processes

Chemistry – A European Journal, EarlyView.
Hydrogen peroxide (H2O2) is an important chemical substance and also a promising carbon‐free clean fuel. The design of a sophisticated photoelectrochemical (PEC) reaction system enables the solar‐driven H2O2 production through simultaneous water oxidation and oxygen reduction processes (H2O2/H2O2‐PEC cells).
Tetsuro Soejima, Shin‐ichi Naya, Hiroaki Tada   +2 more
wiley   +1 more source

Review of recent advances in the design, synthesis, and modification of biochar for remediation of heavy metal pollution in water

The Canadian Journal of Chemical Engineering, EarlyView.
Research frontiers in using biochar for heavy metal remediation. Abstract Heavy metal contamination of water has long been a serious environmental issue. Biochar and biochar‐based composites are emerging as effective and sustainable solutions for heavy metal removal due to their strong adsorption abilities and environmentally friendly nature.
Soumik Chakma, Mehedi Hasan, Sudip K. Rakshit, Janusz Kozinski, Kang Kang   +4 more
wiley   +1 more source

Interfacial adsorption characteristics of surfactant‐modified nanoparticles: Equilibrium and dynamic effects of salinity at the oil–water interface

The Canadian Journal of Chemical Engineering, EarlyView.
Surfactant‐modified nanoparticles adsorb at the oil–water interface, enabling interfacial stabilization and microemulsion formation. Abstract This study systematically investigated the interfacial behaviour of silicon dioxide (SiO2) and aluminium oxide (Al2O3) nanoparticles (NPs) functionalized with cationic (CTAB), anionic (SDS), and nonionic (Triton ...
Behrooz Ahmadi, Eghbal Sahraei, Amir H. Mohammadi   +2 more
wiley   +1 more source

Sustainable Synthesis of Edge‐Dominant Pyridinic Nitrogen‐Doped Carbon from Tannic Acid for High‐Performance Vanadium Redox Flow Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Graphitic carbon doped with an edge‐predominant pyridinic structure is synthesized using a sustainable, rapid microwave process. The material enhances vanadium redox reactions, improving energy efficiency and durability in VRFB electrodes, with a 94.12% discharge capacity retention over 1000 cycles.
Heeyeon An, Sieun Jeon, Yongjin Chung
wiley   +1 more source

ZnO‐Coated Silicon Oxide Nano‐Anode: Synergistic Enhancement of Cycling and Thermal Stability of Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Lithium‐ion battery anodes that maintain good performance and excellent stability under high temperature conditions. Silicon oxide (SiO) has great potential as a high‐capacity anode for lithium‐ion batteries, but its practical use is limited by excessive volume expansion (>200%) and rapid capacity fade, especially at high temperatures.
Keren Shi, Wende Yi, Weikang Su, Qiaowei Xiao, Ziyan Wang, Xiaoyu Li, Jingyang Mu, Wufei Tang, Zhihan Peng, Huiqin Yao   +9 more
wiley   +1 more source

Synthesis of Coal Tar‐Based Hypercrosslinked Polymers via Friedel‐Crafts Alkylation: An Efficient Way to Access Carbon Electrode Material for Supercapacitors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Liquid coal tar (CT) is synthesized into hypercrosslinked polymers (HCPs) via the Friedel–Crafts alkylation, followed by oxidation‐carbonization to form disordered microporous carbon. The resulting CF2CT exhibits a high three‐electrode specific capacitance of 342 F g−1 at 1 A g−1, and the assembled symmetric supercapacitor illuminates a light sign ...
Zhichao Ren, Yanchun Pei, Xueyan Wu, Yan Lv, Rui Xue, Jixi Guo, Xiaogang Zhang   +6 more
wiley   +1 more source