Results 151 to 160 of about 34,179 (313)

Selective Oxidation Strategies for Cost‐Efficient Green Hydrogen Production via Hybrid Water Electrolysis

Carbon Energy, EarlyView.
Hybrid water electrolysis has emerged as a promising alternative to conventional electrolysis for sustainable hydrogen production. The economic potential of replacing water oxidation with organic substrates is assessed. For each substrate, representative electrocatalysts and mechanistic insights are reviewed to identify design principles for optimized ...
Conor Brennan‐Pollak, Lua Henderson, Cian Clarke, Maida A. Costa de Oliveira, Dídac A. Fenoll, Sreedhanya Pallilavalappil, Aswathy Babu, Shaista Jabeen, Pranav K. Gangadharan, Huabin Zhang, Suresh C. Pillai, Paula E. Colavita, Max García‐Melchor   +12 more
wiley   +1 more source

ESTUDIO TEÓRICO DE LAS INTERACCIONES DEL AZUFRE SOBRE LAS SUPERFICIES CeO2(111) Y Rh-CeO2(111)

Avances en Ciencias e Ingeniería, 2011
Se estudió la deposición de azufre sobre CeO2(111) y Rh-CeO2(111), empleando cálculos periódicos basados en la teoría del funcional de la densidad (DFT).
Juan E. Russmann, Alfredo Juan, Gloria González, Beatriz Irigoyen   +3 more
doaj  

Photothermal CO2 Hydrogenation: Reactions, Mechanisms, and Catalyst Design

Carbon Energy, EarlyView.
Reactions, mechanisms, and catalyst design for photothermal CO2 hydrogenation. ABSTRACT Photothermal CO2 hydrogenation has attracted extensive attention because it provides a green and sustainable approach to fuel and chemicals production. The photothermal catalyst plays a critical role in CO2 conversion through a range of reactions.
Shuai Yan, Yuting Wang, Wenhao Zhao, Jinqiang Zhang, Guangyao Chen, Lei Jiang, Yun Wang, Yingquan Chen, Xiong Zhang, Xianhua Wang, Kuo Zeng, Hongqi Sun, Shuxin Ouyang, Yonggang Yao, Haiping Yang, Hanping Chen   +15 more
wiley   +1 more source

Direct Capture of Dynamic Surface Reconstruction in a Perovskite Cathode via Operando Raman Spectroscopy

Carbon Energy, EarlyView.
Operando Raman spectroscopy directly captures the dynamic form conditions of the BaCoO3‐δ phase on the BSCY surface. This observation provides critical insight into the phase evolution mechanisms, which are essential for optimizing the performance and stability of BSCY‐based protonic ceramic fuel cell cathodes.
Yongxin Li, Wenhuai Li, Wenxin Liu, Chang Li, Yu Li, Zhaohui Cai, Chuan Zhou, Jie Miao, Huangang Shi, Wei Zhou, Zongping Shao   +10 more
wiley   +1 more source

Σύνθεση, χαρακτηρισμός και καταλυτική συμπεριφορά νανοδομημένων υλικών CeO2-ZrO2, CeO2-SiO2, CeO2-Al2O3

, 2012
Περιέχει παράρτημα Η παρούσα Διδακτορική Διατριβή εκπονήθηκε με στόχο την μελέτη των φαινομένων διάχυσης που εμφανίζονται κατά την διάσπαση δευτεροταγών αλκοολών. Για τον σκοπό αυτό συντέθηκαν μεικτά οξείδια με οξείδιο αναφοράς το οξείδιο του δημητρίου (CeO2) και τα οξείδια του ζιρκονίου (ZrO2), πυριτίου (SiO2) και αργιλίου (Al2O3) ως πρόσθετα.
openaire   +1 more source

Beyond Activity: The Unified Framework of the Sabatier Principle to Guide Rational Design of Durable and Active Electrocatalysts

Carbon Energy, EarlyView.
In this review, a unified framework of the Sabatier principle is applied to a diverse range of catalytic and electrocatalytic systems for advanced clean energy technologies, with a particular focus on the oxygen reduction reaction (ORR). This approach will guide the design and development of highly active and stable catalysts for fuel cells ...
Wanying Zhang, Quan Zhou, Xuanxuan Bi, Luo Luo, Yunxiang Cheng, Rongyue Wang, Zhongwei Chen   +6 more
wiley   +1 more source

Oxygenophilic Cerium Promotes Active Species Generation and Modulates the Interfacial Water Network in Electrocatalytic Water Oxidation

Carbon Energy, EarlyView.
CeO2 dendrites are introduced to modify the NiSx/C3N4 nanorods, constructing hexagonal star‐like forest arrays (CeO2@NiSx/C3N4). The oxophilicity of Ce species generates abundant oxygen vacancies, which subsequently facilitate the in situ evolution of active amorphous NiOOH.
Yuxi Chen, Kexin Sun, Zhongpu Yu, Ziheng Tang, Yuqi Yang, Libing Xue, Jihui Lang, Qi Zhang   +7 more
wiley   +1 more source

Contribution to the study of nanostructured CeO2, Au, and Au/CeO2 systems

, 2017
Les nanomatériaux sont de plus en plus utilisés dans de nombreusesapplications, que cela soit pour la catalyse, la coloration, l’optique, etc. Pour optimiser leurutilisation, il est nécessaire de mieux comprendre les réactions et interactions ayant lieu à ceséchelles.
openaire   +1 more source

CeO2/Si薄膜的紫／蓝光跃迁

, 2003
利用双离子束外延技术制备了CeO2/Si薄膜，观察到了CeO2室温蓝光发光以及低温紫光致发光(PL)现象．利用XRD和XPS对薄膜结构及价态进行分析后表明，Ce02的发光机制是由于电子的Ce4f→O2p跃迁和缺陷能级→O2p能级跃迁共同作用的结果 ...
刘志凯, 杨少延, 柴春林, 廖梅勇, 陈诺夫   +4 more
core  

CO2‐Driven Synthesis of Holey Edge‐Carboxylated Graphene for Tunable Electronic Interactions in Cu–CeO2‐Catalyzed Water‐Gas Shift Reaction

Carbon Energy, EarlyView.
Holey‐structured, edge‐carboxylated graphene with a controlled specific surface area was synthesized using an environmentally friendly, CO2‐activated, KOH‐free ball‐milling process. ABSTRACT Graphene, notable for its high specific surface area, is ideal for catalyst support but faces challenges under harsh thermal catalytic conditions.
Seon‐Yong Ahn, I‐Jeong Jeon, Won‐Jun Jang, In‐Yup Jeon, Jae‐Oh Shim, Hyun‐Seog Roh   +5 more
wiley   +1 more source