China University of Mining and Technology

In situ exsolved M-Ru bimetallic sites with fine-tuned charge distribution for enhanced CO2/H2O co-electrolysis performance in La0.75Sr0.25CrO3-δ-based SOEC cathodes

Advancing the co-electrolysis of CO 2 /H 2 O in solid oxide electrolysis cells (SOECs) critically relies on the development of cathode with high efficiency and excellent stability. This study designs high-performance perovskite oxide cathode materials (La 0.75 Sr 0.25 Cr 0.7 M 0....

Enhancing search efficiency in large-scale constrained multi-objective optimization using a decision variable importance matrix

Existing constrained multi-objective evolutionary algorithms (CMOEAs) encounter significant challenges in solving large-scale constrained multi-objective optimization problems (LSCMOPs), as the exponentially increasing search space severely restricts their optimization efficiency...

Effect of structure aspect ratio on the heat storage and extraction performance in an abandoned mine shaft

Combining solar energy with water tank thermal storage is a highly promising method for achieving cross seasonal storage and utilization of low-grade energy. However, the existing research mainly focuses on ground water storage, few investigations are involved in using abandoned...

Enhancing flotation selectivity via ultrasonic treatment on the froth: foam characteristics and underlying mechanisms

In flotation, improving selectivity is crucial to reduce concentrate ash content and achieve clean coal utilization; however, nonselective entrainment of fine gangue frequently degrades separation performance. This work innovatively applies ultrasound to the froth to investigate...

Soil property evolution and profile differentiation in the waste dump of the Hequ Open-pit Coal Mine under different restoration pathways

The inability to disentangle restoration pathway effects from age effects has long constrained mechanistic understanding of soil recovery in post-mining landscapes. To address this methodological challenge, we established a quasi-experimental design at a waste dump in the Hequ Op...

Multi-objective optimization of skirt profile for air-cooled pistons based on adaptive ensemble multi-kernel Kriging and an improved hybrid WOA-DE algorithm

Operating under severe thermo-mechanical coupled loads, air-cooled diesel engine pistons are highly susceptible to secondary motion instability, piston slap, and exacerbated friction. To address this multi-objective performance trade-off, this study investigates a representative...

Spatial–Temporal Variability of PM2.5 and Ozone Pollution in the Huaihai Economic Zone of China

Fine particulate matter (PM2.5)and ozone (O3) compound pollution poses an important air-quality challenge in rapidly industrializing regions, and their relationships are affected by complex emission, chemical, and meteorological processes. This study investigates the long-term va...

Experimental study of the flame behaviors and radiation impact of medium-scale pool fires with different ullage heights

Tank fires represent a prevalent type of industrial hazard. The thermal radiation generated by the primary ignited vessel dictates the effectiveness and safety of emergency rescue interventions. Consequently, this study performed a series of medium-scale gasoline fire trials util...

Conjugate heat transfer and melting mechanisms of a metallic phase change capsule with an internal cavity under external forced convection

Conjugate heat transfer during charging of encapsulated metallic phase-change materials (PCMs) is controlled by external convection, shell conduction and transport within the melt. Previous studies commonly prescribe uniform shell temperatures or neglect the influence of internal...

Failure wear mechanism and blade width effect of TBM center cutter rotation in water-bearing weakly cemented sandstone

Weakly cemented sandstone (WCS) in western China is rich in clay minerals. Water‑induced softening tends to induce rotation failure of TBM central hobs, which further causes eccentric tip damage and edge chipping and remarkably reduces tunnelling efficiency. Aiming at the poorly...

Photocatalysis Recovery of Precious Metals from Spent Three-Way Catalysts: The Solvent Effects of Halide Salts

Abstract Photocatalytic leaching has emerged as a promising platform for the recovery of platinum group metals (PGMs) from spent three-way catalysts (TWCs). However, the complex leaching dynamics in halide-rich media and the fundamental influence of the ionic environment on leach...

Constraining Annual Coal Mine Methane Emissions with Multitemporal Hyperspectral Satellite Observations

Abstract Methane emissions from coal mining are difficult to constrain because of temporal variability and sparse observations. We used multitemporal hyperspectral observations from GF5A, GF5B, ZY1E, and ZY1F to quantify facility-scale emissions and evaluate sampling requirements...

Characterizing the Variations of Total Column, Profile, and Surface Ozone in the Huaihai Economic Zone of China

The Huaihai Economic Zone (HEZ) of China is an important industrial region experiencing substantial surface ozone (O3) pollution. To characterize the long-term spatiotemporal and vertical variability of ozone over the HEZ, we integrated satellite-derived total column ozone (TCO),...

Markerless froth velocity measurement in coal flotation via local motion-consistent ORB matching

The froth velocity in coal flotation is a key indicator reflecting the separation performance. However, full-foreground froth images often exhibit significant local similarity or suffer from motion blur, resulting in weak texture and poor velocity extraction accuracy. Existing fe...

Dual-scale undulation characterisation and modelling of sedimentary bauxite deposits

Abstract Sedimentary bauxite deposits exhibit both regional-scale orebody undulations and irregular local ore–rock interfaces, which cannot be adequately represented using models constructed solely from borehole data. Taking the Aojiawan II bauxite mine in Lüliang, Shanxi Provinc...

Deoxygenation upgrading of pine pyrolysis oil over H-X zeolite/carbon composite catalysts derived from coal gasification fine slag

Integrating biomass energy development with solid waste utilization supports sustainable development. Against this backdrop, low-cost and efficient Na-X zeolite/carbon composite catalysts were developed from coal gasification fine slag(CGFS) through acid leaching, alkali-fusion a...

Accounting for Nanofilm Contributions in Interfacial Free Energy Calculations Using Classical Density Functional Theory

Abstract Fluid nanofilms play a fundamental role in nanoscale interfacial thermodynamics, yet their interfacial behavior and treatment within classical density functional theory (cDFT) warrant further investigation. We investigate nanofilm interfacial properties using a cDFT fram...

Reconstruction of post-mining porosity-permeability field in abandoned coal mine goaf and its implication for CO2 sequestration

The post-mining pore–fracture structure significantly influences fluid migration and storage within the goaf, yet it remains inadequately represented in most existing models. This study proposes and field-validates a mechanics-based method for reconstructing the three-dimensional...

A Bibliometric Review of Chinese Research on Coal Spontaneous Combustion Inhibitors in Years 1990–2025

To better understand the research status and development trends of coal spontaneous combustion inhibitors in China, this study uses CiteSpace to conduct a bibliometric analysis of relevant literature from the CNKI database (1990–2025). The analysis covers publication trends, inst...

Polydopamine‐Mediated Interfacial Engineering of Perylene Diimide Organic Semiconductors for Photocatalytic Hydrogen Evolution

ABSTRACT Efficient and durable hydrogen evolution with PDI‐based organic supramolecular photocatalysts remains limited by insufficient surface‐active sites, structural instability and inefficient charge utilization. Here, we design a bioinspired polydopamine (PDA)‐mediated interf...