Results 201 to 210 of about 145,653 (305)

Low‐Temperature in Situ Upgrading of Ultra‐Deep Heavy Oil Using Ni–Ce/MOF–OTf Superacid Catalysts to Enhance Energy Utilization and Sustainability

EcoEnergy, EarlyView.
A triflate‐functionalized Ni–Ce/MOF–OTf superacid enables low‐temperature (∼140°C) in situ upgrading of ultra‐deep heavy oil. It reduces viscosity by 92.11% in 12 h, maintains activity over cycles, and delivers 90.25% recovery with a lower carbon footprint by selective bond cleavage. ABSTRACT Ultra‐deep heavy oil is an important unconventional resource,
Li Wang, Ji‐Xiang Guo, Qiming Huang, Kunpeng Li, Chi Li, Yajie Wu   +5 more
wiley   +1 more source

Self-Immolative Gels: Programmable Degradation Using Self-Immolative Linkers and Polymers. [PDF]

Chemistry
Li C, Gillies ER.
europepmc   +1 more source

Photoreversible Polyurea Actuators With Spatiotemporal Control and Adaptive Mechanics

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A light–thermal responsive polyurea network incorporating reversibly dimerizable anthracene units enables spatiotemporal modulation of cross‐linking density and nearly 400‐fold stiffness tuning. Integrating programmable anisotropy, photopatterning, self‐healing, and photowelding within a single framework, this bioinspired “one network–multifunction ...
Zhiwen Song, Wang Li, Xinru Guo, Rui Pu, Wenxin Wang, Yujun Cheng, Liang Shen, Fei Gao   +7 more
wiley   +1 more source

Sustainable recycling of polyester wastes using a coordinatively unsaturated Zn catalyst. [PDF]

Nat Commun
Cao J, Liang H, Chen W, Li X, Fu S.
europepmc   +1 more source

Recent Advances in Pickering Emulsion Templated Phase Change Material Microcapsules: Design, Fabrication, and Multifunctional Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li, Jinsheng Sun, Kaihe Lv, Chaozheng Liu, Meichun Li   +4 more
wiley   +1 more source

Upcycling of Commercial Biobased Polyester BioplasticsTurning Used or Spoiled Materials into Added-Value Products. [PDF]

ACS Polym Au
Jašek V, Figalla S, Přikryl R.
europepmc   +1 more source

Enzymatic depolymerization of lignin by laccases

More than half of platform petrochemicals are aromatic, whereas the only large-scale, naturally-occurring, renewable source of aromatics is lignin. Chemical depolymerization of lignin requires extreme conditions, and results in extensive destruction of ...
Hamidi, Nor Hanimah
core  

Integrated Solvent‐Catalyst‐Dopant Strategy via Acidic DES for Synthesizing Lignin‐Derived Carbon Dots With High‐Quantum Yield to Achieve Efficient Photocatalytic Degradation of Tetracycline

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A deep eutectic solvent (ChCl/pTSA) platform enables integrated solvent, catalyst, and dopant functions, producing sulfur‐doped carbon quantum dots with a high sp2‐C content (82.8%) and a quantum yield of 56.9%. When combined with TiO2, the CQDs form TiOC and TiOS interfacial bridges, achieving 97.3% tetracycline photodegradation with excellent ...
Xinhang Li, Haipeng Guo, Suen Hou, Fenghua Huang, Hailong Yu   +4 more
wiley   +1 more source

Chemical recycling of imine-linked covalent organic frameworks. [PDF]

Chem Sci
Jing Y, Wang J, Fang Y, Liu Z.
europepmc   +1 more source

On the Structural Evolution Mechanism of Lignin‐Derived Hard Carbon for Refining Sodium‐Ion Storage

Electron, EarlyView.
The lignin‐derived hard carbons with different microstructures were prepared under different carbonization temperature (600°C–1600°C) and carbonization time (0–6 h). The correlation between the local structure of all hard carbons and sodium‐ion storage performance was statistically analyzed. The optimized hard carbon anode has high‐rate performance and
Lei Zhong, Shuhua Hao, Junjun Yao, Fangbao Fu, Xihong Zu, Xueqing Qiu, Wenli Zhang   +6 more
wiley   +1 more source