Results 111 to 120 of about 12,638 (303)

Nanoporous Materials as New Engineered Catalysts for the Synthesis of Green Fuels

Molecules, 2015
This review summarizes the importance of nanoporous materials and their fascinating structural properties with respect to the catalytic and photocatalytic reduction of CO2 to methane, toward achieving a sustainable energy supply.
Ioana Fechete, Jacques C. Vedrine
doaj   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Enhanced CO2 methanation through electronic modification of Ru to Ni in Ni–Al hydrotalcite-derived catalysts

Green Energy & Environment
Nickle-based catalysts are commonly used for CO2 methanation. However, there is still potential to improve their catalytic performance under mild conditions.
Junming Zeng, Yongbin Yao, Fang Wang, Jiajian Gao, Lili Zhang, Guangwen Xu, Ziyi Zhong, Fabing Su   +7 more
doaj   +1 more source

Liquid Bismuth Catalyst Enables High‐CO‐Selectivity in CO2 Hydrogenation

Advanced Science, EarlyView.
This work introduces a dynamic liquid bismuth catalyst for efficient CO2‐to‐syngas conversion. Stabilized molten Bi nanodroplets on a defective VOx support enable a reversible Bi3+/Bi0 redox cycle at moderate temperatures. Mechanistic insights reveal that Ni‐Bi dual sites synergistically activate H2 and cleave CO2, leading to high CO selectivity ...
Xinxin Lu, Zun Guan, Xinyi Fu, Bin Chen, Zhongliang Huang, Riguang Zhang, Guowu Zhan   +6 more
wiley   +1 more source

Influence of Residual Chloride on CO and CO₂ Adsorption and Selective Methanation Performance of Ru/Al₂O₃ Catalysts

Energies
CO-selective methanation (CO-SMET) has emerged as an effective approach for achieving deep CO removal in hydrogen-rich gases. Residual chloride (Cl−) plays a significant role in determining the CO removal performance of Ru/Al2O3 catalysts. In this study,
Changchang Yang, Chunhuan Luo, Qingquan Su   +2 more
doaj   +1 more source

Alternate aircraft fuels: Prospects and operational implications [PDF]

The potential use of coal-derived aviation fuels was assessed. The studies addressed the prices and thermal efficiencies associated with the production of coal-derived aviation kerosene, liquid methane and liquid hydrogen and the air terminal ...
Witcofski, R. D.
core   +1 more source

Selective methanation of CO over supported Ru catalysts

Applied Catalysis B: Environmental, 2009
Abstract The catalytic performance of supported ruthenium catalysts for the selective methanation of CO in the presence of excess CO 2 has been investigated with respect to the loading (0.5–5.0 wt.%) and mean crystallite size (1.3–13.6 nm) of the metallic phase as well as with respect to the nature of the support (Al 2 O 3 , TiO 2 , YSZ, CeO 2 and ...
Παναγιωτοπουλου Παρασκευη(http://users.isc.tuc.gr/~ppanagiotopoulou), Panagiotopoulou Paraskevi(http://users.isc.tuc.gr/~ppanagiotopoulou), Xenophon. E. Verykios(), Dimitris I. Kondarides()   +3 more
openaire   +2 more sources

Reduced‐Graphene Oxide Nanofiltration Membranes Intercalated by Conjugated Polyaromatics: Towards High Monovalent Salt Rejections

Advanced Science, EarlyView.
We demonstrate the fabrication of a series of reduced‐GO nanofiltration membranes containing intercalated polyaromatic conjugated molecules of different structural classes. These tuned‐nanochannel membranes perform “deep nanofiltration” with remarkably high monovalent salt rejections and near‐total divalent salt rejections in a large concentration ...
Muskan Sonker, Sankar Nair
wiley   +1 more source

Introgressed Variation in TaMYB7‐A1 Drives Graded Dormancy and Climate‐Adaptive Pre‐Harvest Sprouting Resistance in Wheat

Advanced Science, EarlyView.
TaMYB7‐A1 directly activates TaABI5 to enhance ABA signaling and regulate ABA‐GA homeostasis, enforcing seed dormancy. Its superior allele, derived from wild einkorn introgression, harbors a MITE insertion that elevates expression and two amino acid substitutions that enhance transcriptional activity, collectively generating graded PHS resistance for ...
Hao Wang, Dongzhi Wang, Yafei Guo, Qi Zheng, Min Zhang, James Simmonds, Jian Hou, Xuemei Liu, Xuelei Lin, Xiaomin Bie, Xiansheng Zhang, Xiaohui Li, Yuan Chen, Xueyong Zhang, Cristobal Uauy, Fei Lu, Chengcai Chu, Zhixi Tian, Jun Xiao   +18 more
wiley   +1 more source

Combined Reaction System for NH₃ Decomposition and CO₂ Methanation Using Hydrogen Permeable Membrane Reactor in 1D Model Analysis

Membranes
In a previous study, we developed an integrated reaction system combining NH3 decomposition and CO2 methanation within a membrane reactor, significantly enhancing reactor performance through efficient H2 separation.
Putri Permatasari, Haruka Goto, Manabu Miyamoto, Yasunori Oumi, Yogi Wibisono Budhi, Shigeyuki Uemiya   +5 more
doaj   +1 more source