Results 31 to 40 of about 2,837 (177)

Hydrogen‐Bond Enabled Phosphite Based Intrinsic Flame‐Retardant Solid‐Solid Phase Change Materials Using Catalyst/Solvent‐Free Multi‐Component Reaction for Battery Thermal Management

Advanced Science, EarlyView.
The phosphite group endows intrinsic flame retardancy, while the P = O bond enhances intermolecular interactions to realize solid‐solid phase transition. Battery thermal management tests show the materials extend the safe working time of lithium‐ion batteries by 200%. Cone calorimeter tests indicate a 14s delay in ignition time, and reductions of 37.6%,
Changhui Liu, Guangyuan Liang, Yuanzheng Liu, Jiantang Gao, Zeyang Li, Lin Huang, Jiateng Zhao, Junbing Xiao, Xiaoxing Zhong, Jun (Joelle) Wang   +9 more
wiley   +1 more source

Oxidation Mechanisms of Low Molecular Valeric Acidic Compounds in Coal Spontaneous Combustion

Fire
Coal spontaneous combustion seriously threatens the safety of coal mine production, and studies on low molecular compounds in coal spontaneous combustion are limited.
Shaobo Qu, Xiaobo Wang, Tianyi Yang, Wenhao Deng, Sichen Liu, Hanzhong Deng, Yafei Shan, Hongguang Ji   +7 more
doaj   +1 more source

Exploration of Physical Properties of Sodium‐Based Perovskite Hydrides ANaH3 (A = Hf, Nb, Pd, Ru) for Hydrogen Storage Applications: First Principles Study

Advanced Physics Research, EarlyView.
First‐principles calculations reveal that ANaH3 (where A = Hf, Nb, Pd, Ru) perovskite hydrides combine structural stability, favorable electronic properties, and low hydrogen desorption temperatures (280–369 K). Strong metal–hydrogen interactions and reversible hydrogen storage characteristics identify these materials as promising candidates for ...
Fikadu Takele Geldasa, Francis Birhanu Dejene   +1 more
wiley   +1 more source

A review on coal spontaneous combustion prediction based on machine learning

Meitan xuebao
The coal mining industry confronts a formidable challenge posed by spontaneous combustion disasters. As one of the crucial steps of prevention, spontaneous combustion prediction enables the early detection of potential risks, thereby facilitating the ...
Jun DENG, Cheng YANG, Lifeng REN, Xin LI, Caiping WANG, Zujin BAI   +5 more
doaj   +1 more source

Distribution Law of Coal Spontaneous Combustion Zone in Goaf of Two Intake and One Return Ventilation Working Face

Meikuang Anquan, 2020
To study the distribution law of coal spontaneous combustion zone in goaf of two intake and one return ventilation working face, the oxygen concentration under different working conditions during the mining of the 8301 working face of Tashan Coal Mine ...
DU Yang, QI Xuyao, WENG Xuze, HAO Jianfeng, CHEN Ruifeng, CHEN Yuezhen
doaj   +1 more source

Research on the prediction model of coal spontaneous combustion temperature based on random forest algorithm

Gong-kuang zidonghua, 2021
The prediction accuracy of the traditional coal spontaneous combustion temperature prediction model is poor. The requirement of parameter selection for the prediction model based on support vector machine (SVM) is high.
ZHENG Xuezhao1,2, LI Menghan1,2, ZHANG Yanni1,2, JIANG Peng1,2, WANG Baoyuan1,2   +4 more
doaj   +1 more source

Porous Carbon Materials for Carbon Dioxide Capture

Carbon Energy, EarlyView.
This work aims to address the current status and challenges associated with the regulation of pore structures, as well as the influence of pore structures on CO2 capture. Systematic quantitative analysis of structure–property relationships, combined with machine learning approaches, can effectively evaluate the contributions of structural ...
Zhifu Liu, Chuhan Fu, Tao Qi, Hui Zhou, Guangping Hao, Yalou Guo, Guoping Hu   +6 more
wiley   +1 more source

Photothermal CO2 Hydrogenation: Reactions, Mechanisms, and Catalyst Design

Carbon Energy, EarlyView.
Reactions, mechanisms, and catalyst design for photothermal CO2 hydrogenation. ABSTRACT Photothermal CO2 hydrogenation has attracted extensive attention because it provides a green and sustainable approach to fuel and chemicals production. The photothermal catalyst plays a critical role in CO2 conversion through a range of reactions.
Shuai Yan, Yuting Wang, Wenhao Zhao, Jinqiang Zhang, Guangyao Chen, Lei Jiang, Yun Wang, Yingquan Chen, Xiong Zhang, Xianhua Wang, Kuo Zeng, Hongqi Sun, Shuxin Ouyang, Yonggang Yao, Haiping Yang, Hanping Chen   +15 more
wiley   +1 more source

Characteristics of Spontaneous Combustion of Anthracite in Vietnamese Coal Mines

Journal of MMIJ, 2016
Including Vietnamese anthracite coal mines, it had been said that anthracite coal mine hardly starts spontaneous combustion1); however, at some of underground anthracite coal mines of Vietnam, several outbreaks of spontaneous combustion have been ...
Le Trung TUYEN, Nhu Viet TUAN, Kotaro OHGA, Takehiro ISEI   +3 more
doaj   +1 more source

Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2$$ {\mathrm{O}}_2 $$, air, or less commonly N2O$$ {\mathrm{N}}_2 ...
Gholamreza Roohollahi, Jildimara de Jesus Santana, Alexander R. P. Harrison, Sara Andreoli, Ewa Marek, Stuart Scott, Mohammad Latifi, Gregory S. Patience   +7 more
wiley   +1 more source