An Overview of Bacterial Cellulose in Flexible Electrochemical Energy Storage

Lei, Wen; Jin, Dou; Liu, Haipeng; Tong, Zhaoming; Zhang, Haijun

doi:10.1002/cssc.202001019

Cited by 34 publications

(19 citation statements)

References 151 publications

(237 reference statements)

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“…[ 1–3 ] It is urgent to exploit clean and sustainable energy to solve the concerns. [ 4,5 ] Currently, hydrogen energy as one kind of promising secondary energy has aroused many researchers’ interests, which can be achieved by water electrocatalysis via utilizing the electrical energy obtained from solar and wind energy. [ 6–10 ] For water electrocatalysis, electrocatalysts are one of the most significant core components for overall water‐splitting devices, which are employed to lower the overpotentials caused by polarization and thus improve the energy transfer efficiency.…”

Section: Introductionmentioning

confidence: 99%

Transforming Damage into Benefit: Corrosion Engineering Enabled Electrocatalysts for Water Splitting

Liu

Gong

Deng

et al. 2020

Adv Funct Materials

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Producing high‐purity hydrogen from water electrocatalysis is essential for the flourishing hydrogen energy economy. It is of critical importance to develop low‐cost yet efficient electrocatalysts to overcome the high activation barriers during water electrocatalysis. Among the various approaches of catalyst preparation, corrosion engineering that employs the autogenous corrosion reactions to achieve electrocatalysts has emerged as a burgeoning strategy over the past few years. Benefiting from the advantages of simple synthesis, effective regulation, easy scale‐up production, and extremely low cost, corrosion engineering converts the harmful corrosion process into the useful catalyst preparation, achieving the goal of “transforming damage into benefit.” Herein, the concept of corrosion engineering, fundamental reaction mechanisms, and affecting factors are firstly introduced. Then, recent progresses on corrosion engineering for fabricating electrocatalysts toward water splitting are summarized and discussed. Specific attentions are devoted to the formation mechanisms, catalytic performances, and structure–activity relations of these catalysts as well as the approaches employed for performance improvements. At last, the current challenges and future exploiting directions are proposed for achieving highly active and durable electrocatalysts. It is envisioned to shed light on the multidisciplinary corrosion engineering that is closely associated with corrosion and material science for energy and environmental applications.

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Section: Introductionmentioning

confidence: 99%

Transforming Damage into Benefit: Corrosion Engineering Enabled Electrocatalysts for Water Splitting

Liu

Gong

Deng

et al. 2020

Adv Funct Materials

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“…The overuse of fossil fuels is causing energy depletion crisis and serious environmental pollution, which appeals for the development of renewable devices, especially fuel cells, − rechargeable batteries, − and supercapacitors. − Among them, supercapacitors hold great promise for the next-generation electronics and electric vehicles because of the advantages of low maintenance cost, high power density, long life-span, and safe operation mode. − Supercapacitors, defined by their charge storage and conversion mechanism, can be divided into two forms: One is the electrical double-layer capacitors, in which the charge is physically stored on the surface of the electrode via the formation of a double-layer structure from the electrolyte to the high-surface-area electrodes. The other is pseudocapacitors (PCs), in which the charge storage is caused by the fast and reversible faradic reactions. − Thus far, transition metal oxides and hydroxides have been widely applied as electrode materials for PCs, taking advantage of their high theoretical capacitance relative to various carbon-based electrodes. − However, the electron transportation was inhibited by the poor intrinsic electrical conductivity, which seriously limited the rate capability of the devices. , As such, ternary transition metal oxides, such as NiCo 2 O 4 , FeCo 2 O 4 , MnMoO 4 , ZnCo 2 O 4 , LiCoO 2 , and CuCo 2 O 4 , have been extensively reported as improved supercapacitor electrodes. − The mixed-valence metal oxides can supply adequate redox reactions and higher electrical conductivity than the monocomponent oxides.…”

Section: Introductionmentioning

confidence: 99%

Self-Sacrificing Template-Derived Hollow-Structured NiCo₂S₄ Spheres with Highly Efficient Supercapacitance Performance

et al. 2020

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Highly efficient supercapacitance performance requires electrode materials to have large electrochemical reaction interfaces due to the surface reaction properties. In this work, a hollow-structured NiCo2S4 spinel is synthesized via an in situ preparation strategy. First, NiCo-glycolate solid spheres are obtained via a simple solvothermal method. The hollow structure is formed through a liquid sulfidation approach using NiCo-glycolate solid spheres as a self-sacrificing template, according to the Kirkendall effect. NiCo2S4 with hollow-structured spheres as supercapacitor electrodes exhibits an excellent specific capacitance of 1387.5 F·g–1 at 1 A·g–1 and a highly efficient cycling stability for over 4500 cycles. Moreover, when served as an all-solid-state asymmetric supercapacitor electrode, superior energy density (39 Wh·kg–1) is achieved at the power density of 215 W·kg–1. The superior energy storage performance is ascribed to the unique properties of the NiCo2S4 spinel, the mesoporous structure, and the large hollow space for alleviating the structure strain.

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“…[47] Therefore, chemical modification mainly reacts at amorphous regions and free hydroxy groups on the glucopyranoside. [48] In recent years, carbon-based aerogels have attracted extensive attention owing to the outstanding physical properties, like large specific surface area, 3D porous structure, light-weight, and high conductivity, which become promising materials in absorbents, flexible electrode for energy storage, and sensors. [15] However, the cost and environmental friendliness of many precursor materials for carbonization is needed to improve.…”

Section: Chemical Modificationmentioning

confidence: 99%

Recent Advances in Functional Bacterial Cellulose for Wearable Physical Sensing Applications

Huang

Zhao

Hao

2021

Adv Materials Technologies

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The development of novel physical sensors mainly depends on the exploitation of sensing materials and the growth of sensing technologies. However, the major challenges for next-generation physical sensing materials include wearable flexibility, miniaturization, biocompatibility, and environmentally friendly, which is committed to the exploration and utilization of eco-friendly materials for pursuing sustainable development. [9] Recently, various natural biomasses including cellulose, chitosan, and silk are promising in the fabrication of sensing materials for wearable devices. [10,11] Cellulose, the most abundant renewable biopolymer on the earth, is produced by plants and some microorganisms, which is extensively used in papermaking, food packaging, textile, and medical care. [12] Among them, bacterial cellulose (BC), with the same chemical structure as plant cellulose, is a kind of pure cellulose bio-synthesized by some certain microorganisms like the Acetobacter xylinum. [13] As a low-cost green material, BC can act as a substrate combined with active materials, which have been widely used in sensor and energy storage related areas. [14] The main advantages of BC as a substrate are renewability, biodegradability, biocompatibility, and possession of shape flexibility, mechanical strength, large specific surface area, and ultrafine fiber. [15,16] In addition, the porous network structure is conducive to the infiltration and combination of active materials on BC to form functional sensing materials, broadening the application of BC, and providing a new view for the development of flexible sensors. On the one hand, the orderly stacked crystalline regions formed by abundant hydrogen bonds endow BC excellent mechanical properties. [17] On the other hand, strong intramolecular and intermolecular hydrogen bonds make the network structure of BC quite tight and difficult to dissolve. [18] Therefore, there is limited development for the exploitation of BC-based functional sensing materials, and available fabrication strategies is needed to design and develop BC-based sensing materials.In fact, the development of cellulose-based sensors is attracting wide and increasing attention, and cellulose has been adopted to the construction of physical, bio, and chemical sensors individually or in combination with other materials. [4,19] A few review papers summarizing the progress on sensors deriving from cellulose have been published. [10,[19][20][21] Owing to the excellent properties of BC and the promising prospects in sensors, this review summarizes the recent advances in construction strategies and fabrication methods of BC-based Flexible physical sensors have attracted increasing attention due to their wide applications in human motion monitoring, human-machine interfaces, smart robots, and personalized medicine in recent years. As a natural biomass, bacterial cellulose (BC) plays an important role in the development of new generation sensors due to the low cost, renewability and biodegradability, 3D porous structure, mechan...

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An Overview of Bacterial Cellulose in Flexible Electrochemical Energy Storage

Cited by 34 publications

References 151 publications

Transforming Damage into Benefit: Corrosion Engineering Enabled Electrocatalysts for Water Splitting

Transforming Damage into Benefit: Corrosion Engineering Enabled Electrocatalysts for Water Splitting

Self-Sacrificing Template-Derived Hollow-Structured NiCo₂S₄ Spheres with Highly Efficient Supercapacitance Performance

Recent Advances in Functional Bacterial Cellulose for Wearable Physical Sensing Applications

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An Overview of Bacterial Cellulose in Flexible Electrochemical Energy Storage

Cited by 34 publications

References 151 publications

Transforming Damage into Benefit: Corrosion Engineering Enabled Electrocatalysts for Water Splitting

Transforming Damage into Benefit: Corrosion Engineering Enabled Electrocatalysts for Water Splitting

Self-Sacrificing Template-Derived Hollow-Structured NiCo2S4 Spheres with Highly Efficient Supercapacitance Performance

Recent Advances in Functional Bacterial Cellulose for Wearable Physical Sensing Applications

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Self-Sacrificing Template-Derived Hollow-Structured NiCo₂S₄ Spheres with Highly Efficient Supercapacitance Performance