Optimizing performance: Achieving high capacitance and cycling durability in alkaline electrolyte with SnO2/SnSe||AC/KOH-based aqueous hybrid supercapacitor

被引：10

作者：

Shah, Muhammad Zia Ullah ^{[1
,2
]}

Shah, Jamal ^{[2
,3
]}

Hayat, Khizar ^{[3
]}

Shah, S. K. ^{[3
]}

Hussain, Iftikhar ^{[4
]}

Khan, Afaq Ullah ^{[5
]}

Shah, Muhammad Sanaullah ^{[1
,2
]}

Hou, Hongying ^{[1
]}

Sajjad, Muhammad ^{[1
,6
]}

Al-Saeedi, Sameerah I. ^{[7
]}

Shah, A. ^{[1
,2
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China

[2] Pakistan Inst Engn & Appl Sci, Natl Inst Lasers & Optron Coll, Islamabad 45650, Pakistan

[3] Abdul Wali Khan Univ AWKUM, Fac Phys & Numer Sci, Dept Phys, Mardan 23200, Khyber Pakhtunk, Pakistan

[4] City Univ Hongkong, Dept Mech Engn, Kowleen, 83 Tat Chee Ave, Hong Kong, Peoples R China

[5] Jiangsu Univ, Sch Chem & Chem Engn, 301 Xuefu Rd, Zhenjiang 212013, Peoples R China

[6] Zhejiang Normal Univ, Coll Chem & Mat Sci, Jinhua 321004, Peoples R China

[7] Princess Nourah bint Abdulrahman Univ, Coll Sci, Dept Chem, POB 84428, Riyadh 11671, Saudi Arabia

来源：

JOURNAL OF ENERGY STORAGE | 2024年 / 75卷

关键词：

Aqueous hybrid asymmetric supercapacitor; SnSe; SnO2-SnSe nanocomposite; Cycling stability; Wet-chemical synthesis; ELECTROCHEMICAL PROPERTIES; PSEUDOCAPACITOR ELECTRODE; NANOCOMPOSITE; NANOPARTICLES; TECHNOLOGIES; PLATES;

D O I：

10.1016/j.est.2023.109662

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A facile wet-chemical assisted synthesis route is adapted to prepare a novel SnO2/SnSe nanocomposite for the time to construct an aqueous asymmetric hybrid supercapacitor (AAHSC). The detailed characterization reveals the appropriate formation of micro flower-like SnO2-SnSe nanocomposite-covered with SnSe network to provide a conductive support and facilitate charge transport during the electrochemical processs. Compared with pure SnO2 micro flowers and SnSe electrodes, the SnO2-SnSe nanocomposite electrode delivers a brilliant charge storage performance. A rapid charge transport pathways was accomplished due to the lowest charge transfer resistance, resulting in a high capacitance and improved charge storage properties in an aqueous alkaline electrolyte solution with incredible reversibility and rate capability. Inspired by the excellent charge storage and capacitive properties, a two-cell mode-based AAHSC was built with SnO2-SnSe nanocomposite (cathode) and activated carbon (AC) as an anode (symbolized as SnO2-SnSe||AC/KOH) displayed the highest energy of 33.4 Wh/kg at a maximum power of 4003.7 W/kg, operating in a voltage of 1.6 V with excellent cycling stability of 89.5 %.

引用

页数：8