Results 51 to 60 of about 24,816 (277)

Primary geological characteristics, advances in exploration and production, and strategies of coalbed methane in South China

Meitian dizhi yu kantan
Objective and Methods South China contains abundant coalbed methane (CBM) resources from numerous, superimposed, thin coal seams, serving as a significant replacement for China’s CBM exploration and production in the future.
Tao GUO, Yatong ZHOU, Xiaobo JIN, Xiaokang GAO, Xingping PENG   +4 more
doaj   +1 more source

Independent Expert Scientific Panel – Report on Unconventional Oil and Gas [PDF]

, 2014
No abstract ...
Curran, J., Gatliff, R., Haszeldine, R.S., Masters, C., Shipton, Zoe, Sorbie, K., Stuart, F., Waldron, S., Younger, P.L.   +8 more
core   +1 more source

Schottky barrier formation and band bending revealed by first principles calculations

, 2015
An atomistic insight into potential barrier formation and band bending at the interface between a metal and an n-type semiconductor is achieved by ab initio simulations and model analysis of a prototype Schottky diode, i.e., niobium doped rutile titania ...
Fang, Yurui, Gao, Shiwu, Hellman, Anders, Jiao, Yang, Käll, Mikael   +4 more
core   +1 more source

Interfacial Engineering by Metallic Ions and Organic Ammonium Ligand Passivation for Perovskite Solar Cells

Advanced Science, EarlyView.
A synergistic approach using phenethylammonium iodide (PEAI) and antimony iodide (SbI3) enhances the operational stabilities of perovskite solar cells by providing p‐type doping effect, suitable band energy alignment, reduced defect density, and minimized surface ion vacancies in the perovskite films.
Abraham Adenle, Purevlkham Myagmarsereejid, Selengesuren Suragtkhuu, Tuul Tsagaantsooj, Solongo Purevdorj, Eric Campbell, Sina Jamali, Oisín E. FitzGerald, Taylor J. Z. Stock, Thomas J. Macdonald, Joseph F. S. Fernando, Hui Jin, Paul E. Shaw, Michitoshi Hayashi, Batjargal Sainbileg, Chihaya Adachi, Yu Lin Zhong, Munkhbayar Batmunkh   +17 more
wiley   +1 more source

Prediction of in-situ stress field of deep coalbed methane considering coalbed structure differences

Meitan kexue jishu
Deep coalbed methane(CBM) is the main direction of CBM resource exploration and development in the future. Deep CBM reservoirs are characterized by large burial depths and complex geological structures, so the in-situ stress field is extremely complex ...
Zhengrong CHEN, Wei LIU, Xian SHI, Xin XIE, Xiaoxin GE, Guowu LI   +5 more
doaj   +1 more source

Origin of the n-type and p-type conductivity of MoS2 monolayers on a SiO2 substrate

, 2013
Ab-initio density functional theory calculations are performed to study the electronic properties of a MoS2 monolayer deposited over a SiO2 substrate in the presence of interface impurities and defects.
Dolui, Kapildeb, Rungger, Ivan, Sanvito, Stefano   +2 more
core   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

Main controlling factors of production and reasonable fracturing scale optimization of deep coalbed methane wells in Shenfu block, Ordos Basin

Shiyou shiyan dizhi
The production of deep coalbed methane (CBM) wells in the Shenfu block of Ordos Basin varies greatly, with a lack of understanding of the main controlling factors.
Lichun SUN, Jia LIU, Na LI, Xinze LI, Heng WEN   +4 more
doaj   +1 more source

Geological steering technology for directional drilling of deep CBM horizontal wells in Qinshui Basin

Meikuang Anquan, 2023
The geological structure of the deep coal seam in Qinshui Basin is relatively complex, which poses a new challenge to the control of the directional landing site of the horizontal well and the control of the drilling trajectory of the horizontal section, and the traditional methods based on the geological characteristics data and lithology of the ...
openaire   +1 more source

Point Defects and Localized Excitons in 2D WSe2

, 2019
Identifying the point defects in 2D materials is important for many applications. Recent studies have proposed that W vacancies are the predominant point defect in 2D WSe2, in contrast to theoretical studies, which predict that chalcogen vacancies are ...
Chen, Yifeng, Gogoi, Pranjal Kumar, Huang, Yu Li, Li, Lain-Jong, Li, Ming Yang, Pennycook, Stephen J, Quek, Su Ying, Trevisanutto, Paolo E., Wang, Qixing, Wee, Andrew Thye Shen, Zheng, Yu Jie   +10 more
core   +1 more source