Layered alkali titanates (A2TinO2n+1): possible uses for energy/environment issues

IF 3.1 4区工程技术 Q3 ENERGY & FUELS

Frontiers in Energy Pub Date : 2021-09-10 DOI:10.1007/s11708-021-0776-6

Taya Ko Saothayanun, Thipwipa Tip Sirinakorn, Makoto Ogawa

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引用次数: 5

Abstract

Uses of layered alkali titanates (A₂Ti_nO_2n+1; Na₂Ti₃O₇, K₂Ti₄O₉, and Cs₂Ti₅O₁₁) for energy and environmental issues are summarized. Layered alkali titanates of various structural types and compositions are regarded as a class of nanostructured materials based on titanium oxide frameworks. If compared with commonly known titanium dioxides (anatase and rutile), materials design based on layered alkali titanates is quite versatile due to the unique structure (nanosheet) and morphological characters (anisotropic particle shape). Recent development of various synthetic methods (solid-state reaction, flux method, and hydrothermal reaction) for controlling the particle shape and size of layered alkali titanates are discussed. The ion exchange ability of layered alkali titanate is used for the collection of metal ions from water as well as a way of their functionalization. These possible materials design made layered alkali titanates promising for energy (including catalysis, photocatalysts, and battery) and environmental (metal ion concentration from aqueous environments) applications.

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层状碱钛酸盐(A2TinO2n+1):可能用于能源/环境问题

层状碱钛酸盐(A2TinO2n+1;综述了Na2Ti3O7、K2Ti4O9和Cs2Ti5O11)在能源和环境问题上的应用。不同结构类型和成分的层状碱钛酸盐是一类基于氧化钛骨架的纳米结构材料。与常见的二氧化钛(锐钛矿和金红石)相比，基于层状碱钛酸盐的材料设计由于其独特的结构(纳米片)和形态特征(各向异性颗粒形状)而具有非常广泛的用途。讨论了控制层状碱钛酸盐颗粒形状和大小的各种合成方法(固相法、通量法和水热法)的最新进展。层状碱钛酸盐的离子交换能力被用于从水中收集金属离子及其功能化的方法。这些可能的材料设计使得层状碱钛酸盐在能源(包括催化、光催化剂和电池)和环境(水环境中的金属离子浓度)应用方面前景广阔。

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来源期刊

Frontiers in Energy Energy-Energy Engineering and Power Technology

CiteScore

5.90

自引率

6.90%

发文量

708

期刊介绍： Frontiers in Energy, an interdisciplinary and peer-reviewed international journal launched in January 2007, seeks to provide a rapid and unique platform for reporting the most advanced research on energy technology and strategic thinking in order to promote timely communication between researchers, scientists, engineers, and policy makers in the field of energy. Frontiers in Energy aims to be a leading peer-reviewed platform and an authoritative source of information for analyses, reviews and evaluations in energy engineering and research, with a strong focus on energy analysis, energy modelling and prediction, integrated energy systems, energy conversion and conservation, energy planning and energy on economic and policy issues. Frontiers in Energy publishes state-of-the-art review articles, original research papers and short communications by individual researchers or research groups. It is strictly peer-reviewed and accepts only original submissions in English. The scope of the journal is broad and covers all latest focus in current energy research. High-quality papers are solicited in, but are not limited to the following areas: -Fundamental energy science -Energy technology, including energy generation, conversion, storage, renewables, transport, urban design and building efficiency -Energy and the environment, including pollution control, energy efficiency and climate change -Energy economics, strategy and policy -Emerging energy issue