Results 51 to 60 of about 5,505 (199)

Advances in Design Strategy and Mechanism Insights for Alkaline Hydrogen Evolution Reaction: Multilevel Site Engineering and Structure–Activity Relationship

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review is about material design based on engineering multilevel sites from theoretical calculation and synthetic routes to mechanism, structure–activity relationship, challenges and perspectives for boosting hydrogen production in alkaline electrolyte. Electrolytic water splitting is a clean, carbon‐free method for producing green hydrogen and has
Ke Zhang, Hongying Luo, Yudong Du, Kehao Yu, Huayu Wu, Shimin Chai, Yanyan Liu, Yongfeng Wang, Jianchun Jiang, Baojun Li   +9 more
wiley   +1 more source

Hydrogenolysis of alkali lignin using spent cell-phone battery electrode coating derived lithium cobalt oxide on carbon catalyst

Discover Catalysis
Hydrogenolysis of plentiful lignin offers a sustainable approach to producing aromatic renewable feedstocks and intermediates for biofuels. This study demonstrates that a low-cost catalyst derived from Li-ion cell-phone battery waste can serve as an ...
Ananda S. Amarasekara, Gabriel Murillo Morales, Ambar B. Shrestha, Tony L. Grady   +3 more
doaj   +1 more source

Effect of Preparation Method on Catalytic Activity of Ni/ γ-Al2O3 Catalysts

Ingeniería, 2017
The performance of catalysts has been shown to be strongly dependent on their methods of preparation.  A study to examine the relationship between catalyst preparation procedures and the structure, dispersion, activity, and selectivity of the finished ...
Bárbara Cristina Miranda Morales
doaj   +1 more source

Polarization‐Reoriented Piezocatalysis Enables Plastic Upcycling with Mechanical Energy

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Mixed plastic waste remains difficult to upcycle selectively under mild conditions, and piezocatalysis has been constrained by a persistent see‐saw effect: Stronger piezoelectric polarization tends to divert charge carriers away from the very active sites that drive catalysis. Sha et al.
Tao Chen, Tian Liang, Zhongxiang Wang
wiley   +1 more source

Solvolysis and Mild Hydrogenolysis of Lignin Pyrolysis Bio-Oils for Bunker Fuel Blends

Energies
The projected depletion of fossil resources has initiated research on new and sustainable fuels which can be utilized in combination with conventional fuels. Lignocellulosic biomass, and more specifically lignin, can be depolymerized towards phenolic and
Antigoni G. Margellou, Fanny Langschwager, Christina P. Pappa, Ana C. C. Araujo, Axel Funke, Konstantinos S. Triantafyllidis   +5 more
doaj   +1 more source

The Investigation of the Deactivation of the Metal‐Modified ZSM‐5 Zeolites for the Catalytic Dehydration of Glycerol

Carbon and Hydrogen, Volume 28, Issue 3, Page 360-373, September 2026.
During the glycerol dehydration over ZSM‐5 zeolite, the modification by metal promoters results in the suppression of the bicyclic and tricyclic aromatics over the modified ZSM‐5 zeolite catalysts. However, the issue of the fast deactivation still remains an apparent challenge, which requires more different perspectives to understand the deactivation ...
Yonghua Yu, Lili Yu, Yunxuan Ji, Dazhi Zhang, Hui Ding, Peidong Li, Shengjun Huang, Jiaxu Liu   +7 more
wiley   +1 more source

Hydrogenolysis of Guaiacol to Phenol Over Ru‐FeOx Nanoparticles Supported on TiO2

Carbon and Hydrogen, Volume 28, Issue 3, Page 340-348, September 2026.
This work demonstrates that the Ru/FeOx–TiO2 catalyst enables selective CAr–OCH3 bond cleavage in water, achieving a phenol selectivity of 81.1% at a 90.4% conversion of guaiacol. The synergy between Ru and FeOx can effectively promote the selective hydrogenolysis of CAr–OCH3 bonds without the obvious hydrogenation of the benzene ring.
Jingping Wang, Shoupei Fan, Qinglei Meng, Yibo Han, Yani Liu, Xinrui Zheng, Yaqin Wang, Haihong Wu, Mingyuan He, Buxing Han   +9 more
wiley   +1 more source

Photocatalytic Lignin Depolymerization and Cross‐Coupling With Alcohols to Produce Unsymmetric Aromatic Diols

Angewandte Chemie, Volume 138, Issue 32, 3 August 2026.
A photocatalytic approach for efficient one‐pot direct lignin depolymerization and subsequent cross‐coupling with alcohols for the production of unsymmetrical aromatic diols has been demonstrated. ABSTRACT Conversion of lignin into chemical products typically involves two separate steps, such as depolymerization and subsequent upgrading of monomers ...
Hongji Li, Jialing Ma, Xiaoling Wan, Yumei Liu, Chaofeng Zhang, Xiaoqin Si, Xiaojun Shen, Rajenahally V. Jagadeesh   +7 more
wiley   +2 more sources

Facile Access to Unnatural Dipeptide-Alcohols Based on cis-2,5-Disubstituted Pyrrolidines

Molecules, 2015
Well-defined unnatural dipeptide-alcohols based on a cis-2,5-disubstitued pyrrolidine backbone were synthesized from commercially available starting materials meso-diethyl-2,5-dibromoadipate, (S)-(−)-1-phenylethylamine, and phenylalaninol.
Yan-Yan Jia, Xiao-Ye Li, Ping-An Wang, Ai-Dong Wen   +3 more
doaj   +1 more source

Methamphetamine Enantiomers: From Chemical Synthesis to Biological Fate

Chirality, Volume 38, Issue 9, September 2026.
Methamphetamine is an amphetamine‐type stimulant characterized by a single stereogenic center, resulting in two enantiomers, (R)‐(−)‐methamphetamine and (S)‐(+)‐methamphetamine, with distinct biological and pharmacological profiles. These forms exhibit differences in central nervous system activity, metabolism, excretion, and overall physiological ...
Larissa Pires do Espírito Santo, Renato Lúcio de Carvalho, Juliana Almeida Sad, Pedro Henrique Costa dos Santos, Rhaiza Silva Domingues, Gabriele de Azevedo Cardoso, Karine Braga Enes, Gisele Assis Castro Goulart, Maila de Castro Lourenço das Neves, Ângelo de Fátima   +9 more
wiley   +1 more source