Anode electrolyte, and trivalent iron ion/ bivalent iron ion redox couple-based biomass fuel cell

Abstract

The invention belongs to the technical field of batteries, and particularly relates to an anode electrolyte, and a trivalent iron ion / bivalent iron ion redox couple-based biomass fuel cell. The invention provides the anode electrolyte, wherein the anode electrolyte is prepared from a trivalent iron salt compound, an acid solution, biomass and water under specific conditions, wherein the specific conditions refer to heating or heating and illumination conditions. According to the invention, the advantages of a flow battery and the fuel cell are integrated, and the dual Fe3+ / Fe2+ redox couple-based biomass fuel cell driven by heating or heating and illuminating is developed, so that the efficiency of converting the biomass into electric energy is highly improved.

Description

technical field

[0001] The invention belongs to the technical field of batteries, and in particular relates to an anolyte and a biomass fuel cell based on a trivalent iron ion / ferrous iron ion redox couple. Background technique

[0002] With the continuous transformation of the global energy structure, the development and utilization of renewable clean energy is gradually deepening. At the same time, how to realize the efficient conversion of renewable clean energy has become an urgent problem to be solved. Biomass resources come from a wide range of sources and are abundant in reserves. As a large agricultural country, my country produces a large amount of biomass waste such as crop straw and bagasse every year. The development and utilization of biomass power generation projects account for 20% of the total investment, and more than 900 million tons of straw produced in China every year have become an important research object for the country's development of biomass ener...

Examples

Embodiment 1

[0055] The embodiment of the present invention provides the first anolyte, and the specific steps are as follows:

[0056] 1. Dissolve 120g of ferric chloride hexahydrate and 45mL of concentrated hydrochloric acid in deionized water to prepare 300mL of ferric acid solution, then add 10g of bagasse, stir evenly, heat to 115°C for 5 hours, and filter the reaction solution to obtain A solid product is dried at a low temperature to obtain a solid product of bagasse oxidative degradation.

[0057] 2. Infrared test analysis: the bagasse before step 1 and the oxidative degradation product of bagasse obtained through oxidative degradation for 5 hours in step 1 were subjected to infrared test, and the results are shown in the attached figure 2 shown. Depend on figure 2 It can be seen that the infrared spectrum of the obtained bagasse oxidatively degraded solid product during the reaction for 5 hours is very different from the infrared spectrum of the non-oxidatively degraded bagass...

Embodiment 2

[0059] The embodiment of the present invention provides the first biomass fuel cell, and the specific steps are as follows:

[0060] 1. Preparation of anolyte: Dissolve 120g of ferric chloride hexahydrate and 45mL of concentrated hydrochloric acid in deionized water to prepare 300mL of ferric acid solution, then add 5g of rice straw, stir well and heat to 100°C. And react at constant temperature for 5 hours to obtain the anolyte.

[0061] 2. Preparation of catholyte: 80 g of ferric chloride hexahydrate and 30 mL of concentrated hydrochloric acid were dissolved in deionized water to prepare 300 mL of ferric acid solution to obtain catholyte.

[0062] 3. Power generation performance test: put the anolyte in step 1 into the anolyte tank at 80°C, put the catholyte in step 2 into the catholyte tank at 80°C; The liquid is connected to the cathode pipe; the anode and the cathode are separated by the proton exchange membrane; the load is respectively connected to the anode and the ca...

Embodiment 3

[0064] The embodiment of the present invention provides the second biomass fuel cell, and the specific steps are as follows:

[0065] 1. Preparation of anolyte: Dissolve 120g of ferric chloride hexahydrate and 45mL of concentrated hydrochloric acid in deionized water to prepare 300mL of ferric acid solution, then add 5g of bagasse, stir well and heat to 100°C. And react at constant temperature for 5 hours to obtain the anolyte.

[0066] 2. Preparation of catholyte: 80 g of ferric chloride hexahydrate and 30 mL of concentrated hydrochloric acid were dissolved in deionized water to prepare 300 mL of ferric acid solution to obtain catholyte.

[0067] 3. Power generation performance test: put the anolyte in step 1 into the anolyte tank at 80°C, put the catholyte in step 2 into the catholyte tank at 80°C; The liquid is connected to the cathode pipe; the anode and the cathode are separated by the proton exchange membrane; the load is respectively connected to the anode and the cath...

technical field

[0001] The invention belongs to the technical field of batteries, and in particular relates to an anolyte and a biomass fuel cell based on a trivalent iron ion / ferrous iron ion redox couple. Background technique

[0002] With the continuous transformation of the global energy structure, the development and utilization of renewable clean energy is gradually deepening. At the same time, how to realize the efficient conversion of renewable clean energy has become an urgent problem to be solved. Biomass resources come from a wide range of sources and are abundant in reserves. As a large agricultural country, my country produces a large amount of biomass waste such as crop straw and bagasse every year. The development and utilization of biomass power generation projects account for 20% of the total investment, and more than 900 million tons of straw produced in China every year have become an important research object for the country's development of biomass ener...

Examples

Embodiment 1

[0055] The embodiment of the present invention provides the first anolyte, and the specific steps are as follows:

[0056] 1. Dissolve 120g of ferric chloride hexahydrate and 45mL of concentrated hydrochloric acid in deionized water to prepare 300mL of ferric acid solution, then add 10g of bagasse, stir evenly, heat to 115°C for 5 hours, and filter the reaction solution to obtain A solid product is dried at a low temperature to obtain a solid product of bagasse oxidative degradation.

[0057] 2. Infrared test analysis: the bagasse before step 1 and the oxidative degradation product of bagasse obtained through oxidative degradation for 5 hours in step 1 were subjected to infrared test, and the results are shown in the attached figure 2 shown. Depend on figure 2 It can be seen that the infrared spectrum of the obtained bagasse oxidatively degraded solid product during the reaction for 5 hours is very different from the infrared spectrum of the non-oxidatively degraded bagass...

Embodiment 2

[0059] The embodiment of the present invention provides the first biomass fuel cell, and the specific steps are as follows:

[0060] 1. Preparation of anolyte: Dissolve 120g of ferric chloride hexahydrate and 45mL of concentrated hydrochloric acid in deionized water to prepare 300mL of ferric acid solution, then add 5g of rice straw, stir well and heat to 100°C. And react at constant temperature for 5 hours to obtain the anolyte.

[0061] 2. Preparation of catholyte: 80 g of ferric chloride hexahydrate and 30 mL of concentrated hydrochloric acid were dissolved in deionized water to prepare 300 mL of ferric acid solution to obtain catholyte.

[0062] 3. Power generation performance test: put the anolyte in step 1 into the anolyte tank at 80°C, put the catholyte in step 2 into the catholyte tank at 80°C; The liquid is connected to the cathode pipe; the anode and the cathode are separated by the proton exchange membrane; the load is respectively connected to the anode and the ca...

Embodiment 3

[0064] The embodiment of the present invention provides the second biomass fuel cell, and the specific steps are as follows:

[0065] 1. Preparation of anolyte: Dissolve 120g of ferric chloride hexahydrate and 45mL of concentrated hydrochloric acid in deionized water to prepare 300mL of ferric acid solution, then add 5g of bagasse, stir well and heat to 100°C. And react at constant temperature for 5 hours to obtain the anolyte.

[0066] 2. Preparation of catholyte: 80 g of ferric chloride hexahydrate and 30 mL of concentrated hydrochloric acid were dissolved in deionized water to prepare 300 mL of ferric acid solution to obtain catholyte.

[0067] 3. Power generation performance test: put the anolyte in step 1 into the anolyte tank at 80°C, put the catholyte in step 2 into the catholyte tank at 80°C; The liquid is connected to the cathode pipe; the anode and the cathode are separated by the proton exchange membrane; the load is respectively connected to the anode and the cath...

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