Results 81 to 90 of about 241,351 (307)

Technology processes of enhancement of broken soft and low permeability coal reservoir and surface development of coalbed methane

Meitan kexue jishu
Broken soft and low permeability (BSLP) coal reservoirs are widely distributed in China. However, due to its soft and broken structure and low permeability, the conventional vertical/horizontal well direct fracturing technology is not ideal for the ...
Shuxun SANG, Fansheng HUANG, Yansheng SHAN, Xiaozhi ZHOU, Shiqi LIU, Sijie HAN, Sijian ZHENG, Tong LIU, Ziliang WANG, Fengbin WANG   +9 more
doaj   +1 more source

Lewis‐Acid Engineering with Neodymium Promoters as Synergistic Nd‐Ni Dual Sites for Enhanced Urea Oxidation

Advanced Science, EarlyView.
The integration of rare‐metal neodymium centers to engineer Lewis acid sites with nickel centers is proposed as highly efficient UOR catalysts. ABSTRACT The sluggish kinetics of the urea oxidation reaction (UOR) are strongly associated with the high energy barriers required for the C‐N cleavage and N‐N coupling steps.
Mingfan Li, Jun Mei, Jiahao Zhao, Ruipeng Guo, Jing Shang, Ziyou Dong, Juan Bai, Qianqian Yao, Shixue Dou   +8 more
wiley   +1 more source

A method of carbon emission accounting and pathways of emission reduction through reduction through CCUS for underground coal mines

Meitian dizhi yu kantan
Objective Coal production and utilization lead to substantial carbon emissions, and the carbon emissions from underground coal mines have attracted increasing attention.
Shen XU, Meng WANG, Xuguang DAI, Yuxin QIU, Jialong TUO, Wenhao LI, Jie GAO   +6 more
doaj   +1 more source

Lattice Distortion‐Driven Metal Exsolution in Perovskite Oxides

Advanced Science, EarlyView.
This study elucidates the mechanism of lattice distortion‐driven exsolution through a combination of computational simulations and experimental approaches. Lattice distortion facilitates the formation of oxygen vacancies and subsequent metal segregation, thereby enhancing the exsolution behavior.
Yo Han Kim, Uchan Jeon, Hyeongwon Jeong, Bo‐Ram Won, Jeong Woo Han, Jae‐ha Myung   +5 more
wiley   +1 more source

Effects of Forestland Ownership Conversion on Greenhouse Gas Emissions: The Case of South Korea [PDF]

This research analyzed the effects of forestland conversion from private to public ownership on greenhouse gas emissions by quantifying the relationship between forestland ownership conversion and deforestation, and then examining the effects of the ...
Roberts, Roland K., Lee, Daegoon, Kim, Hee Ho, Kim, Seung Gyu, Cho, Seong-Hoon   +4 more
core   +1 more source

Connecticut greenhouse gas inventory, 1990-2001 [PDF]

, 2006
Title from PDF caption (viewed June 19, 2007).; Updates: Connecticut greenhouse gas inventory, 1990-2000 / Northeast States for Coordinated Air Use Management (NESCAUM), Connecticut Department of Environmental Protection, Connecticut Clean Energy Fund ...

core  

Efficient Direct Recycling of Spent Batteries: Integrated Lithiation and Delamination

Advanced Science, EarlyView.
An integrated process for the delamination and relithiation of spent cathodes, LixNi0.6Co0.2Mn0.2O2 and LixFePO4, under open‐air conditions is proposed. The transition‐metal (Ni) oxidation state in the cathode is reduced by the oxidation of diethylene glycol, facilitating relithiation. Glycol aldehyde formation induces 100% electrode delamination.
Jeonghwan Song, Seok Hyun Song, Dokyeong Han, Jaehyun Noh, Jayoung Kim, Min Jeong Kim, Hayong Song, Jeong‐Sun Park, Jaekook Kim, Jiyoung Ma, Jinju Song, Jung‐Je Woo   +11 more
wiley   +1 more source

Testing the linearity of the response to combined greenhouse gas and sulfate aerosol forcing [PDF]

, 2004
Detection and attribution studies of the temperature response to anthropogenic greenhouse gases and tropospheric sulfate aerosol have relied on the assumption that the responses to each of these forcings add linearly. Using surface temperature from three
Tett, S. F. B., Gillett, N. P., Wehner, M. F., Weaver, A. J.   +3 more
core   +1 more source

In-tandem multi-waveband particulate absorption and size observations yield substantial changes in radiative forcing over industrial Central China [PDF]

Atmospheric Chemistry and Physics
Coal-based industry in Shanxi, China, including power generation, steel, coke, and chemical manufacturing, emits large quantities of black carbon (BC), contributing significantly to regional aerosol radiative forcing.
L. Guan, J. B. Cohen, S. Wang, S. Wang, P. Tiwari, Z. Liu, Z. Li, K. Qin   +7 more
doaj   +1 more source

Construction of Sabatier Volcanoes for CO2 Hydrogenation to C1‐2 Oxygenates Using Data‐Efficient Machine Learning

Advanced Science, EarlyView.
A new data‐efficient framework combining DFT calculations, a neural network model, and automated graph analysis of catalytic reaction networks is proposed and applied to CO2 hydrogenation on transition metal nanoparticles. The analysis shows how efficient C2 oxygenate production requires a balance between CHx formation, C–C coupling, protonation, and ...
Mikhail V. Polynski, Sergey M. Kozlov
wiley   +1 more source