Results 141 to 150 of about 3,689 (252)

Precisely Constructed Asymmetric Coordination Tuned High‐Spin Co Sites for Sacrificial Agent‐Free H2O2 Photocatalytic Production

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The asymmetric Co–N2O2 coordination structure was precisely constructed through the assembly of Salen COF. The high‐spin (t2g4eg3$$ {\mathrm{t}}_{2\mathrm{g}}^4{\mathrm{e}}_{\mathrm{g}}^3 $$) Co center enables Pauling‐type O2 adsorption, inhibiting the cleavage of the O–O bond. π‐d conjugation enhances charge separation and transport.
Wenhui Qi, Shaonan Gu, Yinan Wang, Wenhao Yin, Bin Sun, Guowei Zhou   +5 more
wiley   +1 more source

Harnessing Support-Dependent Hydrogen Spillover for Ni-Based CO₂ Hydrogenation. [PDF]

Angew Chem Int Ed Engl
Shun K, Kidawara T, Kuwahara Y, Mori K.
europepmc   +1 more source

Unlocking Ammonium‐Ion Storage Capability of MoS2 via Synergistic Molecular Engineering Strategies

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The multiple molecular engineering strategies are simultaneously adopted to endow MoS2 with expanded interlayer distance, abundant active sites and strengthened structural stability. Benefitting from the synergistic effects of phase engineering, doping engineering, and structural engineering strategies, the proposed 1T‐O‐MoS2@HCSs exhibits ...
Kang Zhang, Juan Xie, Luwen Li, Pengcheng Su, Wenhui Chen, Mingkun Wang, Jie Li, Hongwei Tang, Huilong Dong, Yihui Li   +9 more
wiley   +1 more source

Oxygen-Vacancy-Driven Persistent Luminescence in Mn²⁺-Doped MgGeO₃: Insights from X-Ray Absorption Fine Structure Spectroscopy. [PDF]

Chemphyschem
Cao S, Liu Y, Deng R, Lee C, Liu L.
europepmc   +1 more source

Bidentate‐Ligand Molecular Bridge in NiFe‐LDH as a Dynamic Proton Relay and Electronic Modulator to Enhance the Oxygen Evolution Reaction

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
By introducing 4‐chlorobenzoic acid ligands into the interlayer of NiFe‐LDH, the carboxyl and Cl groups on either side are respectively bonded to nearby Fe atoms, yielding a stable Bridge‐Linked structure. The strong electron interaction between the ligands and metal ions suppresses metal ion leaching during the reaction process, thereby maintaining ...
Zhe Sun, Jianye Wang, Zengxuan Chen, Huashuo Zhang, Siyuan Liu, Bo Liao, Zhaojie Wang, Xiaoqing Lu   +7 more
wiley   +1 more source

Multidimensional Tracking and Clustering of Electrochemical Reactions in the Positive Electrode of Lithium-Ion Batteries via Operando X‑ray Nanoscale Chemical Imaging. [PDF]

Chem Biomed Imaging
Uematsu H, Ishiguro N, Kawai K, Sasaki Y, Sekizawa O, Okubo M, Takahashi Y.   +6 more
europepmc   +1 more source

Local Structures of Se and Br in Cretaceous–Paleogene Boundary Sediments and Concentration Effects of Ferrihydrite Originating From Impact Ejecta

Geological Journal, EarlyView.
Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai, Akira Yoshiasa, Ginga Kitahara, Makoto Tokuda, Satoko Ishimaru, Toshihiro Moriga   +5 more
wiley   +1 more source

Operando insights on stable Cu²⁺ active sites for efficient electrochemical CO₂-to-C₂H₄ conversion. [PDF]

Nat Commun
Zhang Z, Xu Q, Han J, Ren K, Hu Y, Zhao R, Sun H, Qin JS, Rao H.   +8 more
europepmc   +1 more source

Confinement Effects in High‑Efficiency Electrocatalysis: Design, Mechanisms, and Applications

Interdisciplinary Materials, EarlyView.
Confinement has emerged as a powerful strategy in electrocatalysis and has been widely employed to enhance catalytic performance. This review summarizes recent advances in confined electrocatalysis, encompassing the design of confined electrocatalysts, mechanistic insights into confinement effects, and representative applications across diverse zero ...
Congcong Yang, Zhihang Liu, Jingshuo Liu, Chuang Chen, Zhiqun Lin, Likun Gao   +5 more
wiley   +1 more source

Defect‐Rich Ir Single‐Atom/NiMnOx Catalyst: From Surface Reconstruction to Practical PEM Electrolysis

Interdisciplinary Materials, EarlyView.
A novel IrSA─NiMnOx composite achieves remarkable oxygen evolution reaction performance in acidic media with an overpotential of 193 mV at 10 mA cm−2 and maintains stability for 800 h at 200 mA cm−2, which is attributed to the atomically dispersed Ir atoms and amorphous NiMnOx carriers and the lattice oxygen oxidation mechanism.
Jingjing Zhang, Qiong Zeng, Meiliang Ma, Yafu Wang, Yan Wang, Huan Ren, Zhaoxian Qin, Qingyi Qian, Zhong‐Kang Han, Jiangwei Zhang, Gao Li   +10 more
wiley   +1 more source