A lot of development in terms of science and technology has taken place to address the increasing energy needs. This demand is expected to increase, especially due to environmental concerns associated with fossil fuels which have led to aggressive research toward energy storage materials and devices. Looking at this emerging trend, devices and materials that can convert, store, and save energy are the need of the hour. Electrochromic devices that assimilate these energy functionalities, along with bias-induced color modulation, are very promising as they not only help in energy conversion and storage but also help in energy saving when used as smart e-curtains for application in buildings and vehicles. The current Focus Review describes the promise of multifunctional electrochromic devices which can convert/generate and store energy through operations similar to batteries and supercapacitors. It also explains how electrochromism can prove to be a breakthrough in energy-related areas along with key challenges. 

Multifunctional Electrochromic Devices for Energy Applications

In the current era of severe energy and environmental crises, the need for efficient and sustainable methods to control pollution and promote resource recycling has become increasingly important. Photocatalytic degradation of pollutants and simultaneous production of clean energy is one such approach that has garnered significant attention in recent years. The principle of photocatalysis involves the development of efficient photocatalysts and the efficient utilization of solar energy. The use of organic contaminants can enhance the photocatalytic reactions, leading to the sustainable generation of clean energy. Herein, we provide a comprehensive review of the latest advances in the application of photocatalytic synergized clean energy production in the environmental field. This review highlights the latest developments and achievements in this field, highlighting the potential for this approach to revolutionize the way we approach environmental pollution control and resource recycling. The review focuses on (1) the mechanism of photocatalytic degradation and synergistic energy production, (2) photocatalysts and synthesis strategies, (3) photocatalytic carbon dioxide reduction, (4) pollutant degradation, and (5) hydrogen and electricity production. In addition, perspectives on key challenges and opportunities in photocatalysis and clean energy for future developments are proposed. This review provides a roadmap for future research directions and innovations of photocatalysis that could contribute to the development of more sustainable and cleaner energy solutions. 

Progress on simultaneous photocatalytic degradation of pollutants and production of clean energy: A review.

Recent progress in BiVO4-based heterojunction nanomaterials for photocatalytic applications

Different ion-based electrolytes for electrochromic devices: A review

Efficient degradation of tetracycline over vacancy-modified Cu-doped Bi2O2S via peroxymonosulfate activation and photocatalysis

In-situ growth of p-type Ag2O on n-type Bi2O2S with intimate interfacial contact for NIR light-driven photocatalytic CO2 reduction

Facile preparation of Prussian blue electrochromic films for smart-supercapattery via an in-situ replacement reaction

Surface-iodination-induced efficient charge separation in bismuth oxysulfide crystals for enhanced photocatalytic CO2 conversion

In this paper, a time projection chamber (TPC) system for α radiation detection with ultra-low background is presented, which is based on Micromegas, a type of micro-pattern gaseous detector. Based on multi-dimensional information acquired by the TPC, such as the features of particle energy deposition and 3D track, the system can achieve the purpose of α identification with ultra-low background. A prototype TPC with the volume of 15 × 15 × 6.5 cm3 was developed. It was filled with a gas mixture of 95% neon and 5% isobutene at about 1 bar, and no additional shielding or control of alpha-emitting materials was employed. A low-noise high-integration electronic system based on multi-channel waveform sampling techniques was adopted to read out the anode strip signals. A test with a 241Am α source (5.5 MeV), a 49-h background test, and several other tests with weak radioactive samples in the laboratory environment were conducted. A feature selection method was designed to maximize the suppression of background events while retaining the events of interest. Test results showed that within an assumed 5 × 5 cm2 effective area in the center region of the TPC window, the background count rate of this system was lower than 1.6 × 10-3 counts per minute at 95% confidence level, while retaining the acceptance rate of about 96% for 241Am α particles.

An ultra-low background alpha detection system with a Micromegas-based time projection chamber.

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Papers

In-situ growth of p-type Ag2O on n-type Bi2O2S with intimate interfacial contact for NIR light-driven photocatalytic CO2 reduction

Facile preparation of Prussian blue electrochromic films for smart-supercapattery via an in-situ replacement reaction

Surface-iodination-induced efficient charge separation in bismuth oxysulfide crystals for enhanced photocatalytic CO2 conversion

An ultra-low background alpha detection system with a Micromegas-based time projection chamber.